Connect and share knowledge within a single location that is structured and easy to search. Unable to complete the action because of changes made to the page. Sign in to answer this question. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Cooking roast potatoes with a slow cooked roast. Since you are setting your marker color, you probably noticed that (each series is assigned a different color Thanks for contributing an answer to Stack Overflow! As an example on figure i want to find the time of the 68.5 m/s ?? Navigazione principale in modalit Toggle . Save plot to image file instead of displaying it using Matplotlib, Adding a legend to PyPlot in Matplotlib in the simplest manner possible, Making a line plot of a set of values in MATLAB. t = -0.5:1/Fs:0.5; % Time vector of 1 second. I have added some comments. rev2022.12.9.43105. Asking for help, clarification, or responding to other answers. Reload the page to see its updated state. MATLAB Answers. Connecting three parallel LED strips to the same power supply. MathWorks is the leading developer of mathematical computing software for engineers and scientists. In fact I showed you how to do it two different ways. Accelerating the pace of engineering and science. I'm using the ode45 (x,y) for solve an open channel flow problem (plot the surface profiles). i have 30,000 rand value that i want to separate 400 to 400.then i wanna plot them but the x axis should start at 0 not 400 or 800 or.any help please? C is one point of x'ay' coordinate. i have 30,000 rand value that i want to separate 400 to 400.then i wanna plot them but the x axis should start at 0 not 400 or 800 or.any help please? Making statements based on opinion; back them up with references or personal experience. There are certain steps that you need to follow for Matlab function plot, and these are: Define the variable x, by highlighting the range of the values for x variable, for which the functions can be plotted. please find the attachment; in the figure, there are two data values. Please help me Guillaume on 29 Aug 2016 @Pooja Patel Theme Copy value = find (Y == Y) Based on Add a new light switch in line with another switch? How to changes X Y coordinate System and get value point? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. If the resolution of your data is high, it is likely that it will be a good approximation. The rubber protection cover does not pass through the hole in the rim. t = -0.5:1/Fs:0.5; % Time vector of 1 second. 1 Link If you want to get the values of unknown points from the figure and have to use in code then this could be helpful. . Note that MATLAB represents irrational numbers such as pi with rational approximations, except when using the symbolic math toolbox. Find the treasures in MATLAB Central and discover how the community can help you . Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. Getting an x values from a plot in MATLAB. Step 1: to get the total amount you would pay for 4 years add the principal amount &6800 and the APR 4.2% = 285.6x 4 years = $1142.4 interest for 4 years. 1. fplot (f) This will plot the graph defined by the function y = f (x). Automatic xlim () selection: In this method, we specify the limit for the current axis or chart by using an automatic way. i need the x and y values of this data. please why we wrote this,,,,,,,,,,,,,,,,, LineH = get(gca, 'Children'); x = get(LineH, 'XData'); y = get(LineH, 'YData'); , for example by calling the clear('x') command. Would salt mines, lakes or flats be reasonably found in high, snowy elevations? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Plot Multiple Data Series at Specified x values x = 1:100; % Initialise plot handle h = plot (nan,nan); for iter = 1:1e2 y = rand + rand*x + rand* (x.^2 ); % set appropriate values of handle set (h, {'XData','YData'}, {x, y}); drawnow; end This way, a plot handle is created only once, and its properties are set in the loop. If you don't have the abscissae and you are creating the plot by only providing y as input to the plot function, i.e., plot (y), then the y values are plotted against the vector 1:length (y). In order to find the maximum value, you need to employ some MATLAB functions (max and find). did anything serious ever run on the speccy? To learn more, see our tips on writing great answers. ? https://www.mathworks.com/matlabcentral/answers/82050-finding-x-value-corresponds-to-a-particular-y-value, https://www.mathworks.com/matlabcentral/answers/82050-finding-x-value-corresponds-to-a-particular-y-value#comment_387639, https://www.mathworks.com/matlabcentral/answers/82050-finding-x-value-corresponds-to-a-particular-y-value#comment_387642, https://www.mathworks.com/matlabcentral/answers/82050-finding-x-value-corresponds-to-a-particular-y-value#answer_91764, https://www.mathworks.com/matlabcentral/answers/82050-finding-x-value-corresponds-to-a-particular-y-value#comment_801434. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Like in sample pictures. Running the for loop, ends up in having created a slope matrix, with 3 values inside, which reprenset 3 different slopes. I don't have the x values, and .05 isn't an actual data point in the y vector. Explain why my code does not do what you want. Not the answer you're looking for? See that section for details. Hi, how can I extract data andd save as mat file from a figure which has 3 subplots, like this: let say i have y values and need to find the corresponding location, can we find the unspecified location? Sign in to comment. Based on this matrix I want to create a 3D plot, where one axis is my x-direction, the second axis is my y-direction and the third axis is the velocity changes. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Is it cheating if the proctor gives a student the answer key by mistake and the student doesn't report it? You can leave default variable name ans. PPVAL(PP,Xq) is the same as, You may receive emails, depending on your. If you did that unwise thing, then it's possible to extract your data from the graph, which has, in effect "stored" it. Plot Single Data Series at Specified x values Plot 50 data values of cosine evaluated between 0 and 2 and specify the set of x values for the stem plot. First open the figure, then obtain the x and y coordinates of the line with, To obtain the value yi at the point with abscissa greater or equal then xi you can write, To extract the values between the points with abscissa x1 and x2 you can follow both strategies. Share The script finds the values range from 1st of . The number of values can be 3, 5, 10, 50 or any N integer. MATLAB stores rational numbers as doubles by default, which is a measure of the number of decimal places that are stored in each variable and thus of how accurate the values are. Otherwise, you could look at the interpolation commands, if you want the whole process automated and repeatedly executed. so if i want, You may receive emails, depending on your. But i cannot seem to do that when the dialog box prompt comes up. answer should be 4th position. rev2022.12.9.43105. Based on How does legislative oversight work in Switzerland when there is technically no "opposition" in parliament? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, What are those points (A, B, C) etc? How could my characters be tricked into thinking they are on Mars? Matplotlib generates the minimum and maximum values of variables to be presented along the x, y (and z-axis in the case of a 3D plot) axes of a plot automatically. Copy. I guess the most simple way is to zoom in and see the value, but there are about 1 thousand data to work with. Skip to content. To plot multiple sets of coordinates on the same set of axes, specify at least one of X or Y as a matrix. I'm sorry, I tought that the code was self explanatory. So, that means you have 6 curves and 9 data points for each curve. A,B,C or not the part of Plot. That means your semilogx plot is made up of 519 data series with 756 data pairs in each one. Accelerating the pace of engineering and science. The length of the input values (Graph Values) can also change every time. Toggle Sub Navigation. matlab ,MATLAB GUI_cherry- matlab ; Making statements based on opinion; back them up with references or personal experience. Learn more about matrices, plot MATLAB. I just wrote them in Photoshop help clarify the question. sites are not optimized for visits from your location. Call the command for function plot with the file name plot (x,y). what if you want to extract data of two lines ? Now, I create new XY coordinate with a is original point. Like in sample pictures, I want to get values of A, B, C. in form of e.g A= (430,0.56). Other MathWorks country Check out the. Haupt-Navigation ein-/ausblenden . The question is not clear. I have a matrix , X= [5 6 9 8 4] Y= [8 7 2 1 9] If I plot this and I need to get position of the X value corresponds to Y=1, that means in which row the X value 8 is located? Some explanation would improve this answer. Respected Image Analyst gave the best answer; I am just simplifying it with examples. To comment a single or two lines of code, we can use the % character . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The plot is created over the default interval [-5, 5]. I have found the minimun value among them (-0.0168), and now, I would like to getting back from that value (the minimum), and to call back the corresponding WZ and J values associated Theme Copy J = [2.5 27 56]; Can a prospective pilot be negated their certification because of too big/small hands? I would really appreciate any help anybody could offer, I've been stuck trying to do this for the past 6 hours. How can I plot a pattern of random points in a specific region? Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. Copy. Copy. Let's understand this function with the help of an example: fplot (@ (x) x^2) Here we have taken square function as the one which we need to plot. If you choose to interpolate tou can construct a new set of points, and interpolate over that set. To plot a set of coordinates connected by line segments, specify X and Y as vectors of the same length. Connect and share knowledge within a single location that is structured and easy to search. Find centralized, trusted content and collaborate around the technologies you use most. % Get the first index where 'y' is greater than some threshold thresh = 10; idx = find ( y >= thresh, 1 ); % Find 1st index where y >= thresh % Get the x value at this index xDesired = x ( idx ); Note that xDesired will be empty if there was no y value over the threshold. Why do American universities have so many gen-eds? Is it cheating if the proctor gives a student the answer key by mistake and the student doesn't report it? MATLAB plots every column as a seperate curve. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Based on MATLAB will plot each column as its own series. Other MathWorks country If you have a chart and you just want to find out the values of arbitrary points on the chart you can use the ginput function or by far the simplest solution is to just use the interactive data cursor built into the figure window. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Did the apostolic or early church fathers acknowledge Papal infallibility? Are the S&P 500 and Dow Jones Industrial Average securities? Isn't that exactly what I just showed you how to do? answer should be 4th position. Is there any way I can do this, or is this impossible? Let us plot the simple function y = x for the . Asking for help, clarification, or responding to other answers. x-axis data is 1-9 because you did not provide any data for MATLAB to plot with. Extract X,Y data from scatter plot. Something can be done or not a fit? Find the treasures in MATLAB Central and discover how the community can help you! I plot x-y graph (Gaussian function) and want to get the x-axis value (will be two points in this case) at a certain y-axis value (half of the maximum) I tried this but it didn't work: Theme. So, How to convert C position to xy coordinate?? and what if i want to take range of values form Point A to B ? I want to find x value given y value, y value is [0.2 0.4 0.7 0.9 1.0] %Finding X value with known Y value on plot clc; clear all; close all; x= 0:0.01:5; y= [0.2 0.4 0.7 0.9 1.0] [X, Y] = me. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. This is how our input and output will look like in MATLAB command window: Input: x = linspace (0, 3*pi, 50); y = sin (x); plot (x,y) hold on y1 = cos (x); plot (x, y1) hold off title ('Trigonometric waves', 'Sine & Cos wave') Output: As we can see in the Output, we have obtained a plot of a sine and cos wave with the required title and a sub-title. sites are not optimized for visits from your location. However, say that I have plotted a graph with plot (t, sin (2*pi*t)). sites are not optimized for visits from your location. How to plot two histograms together in R? Ready to optimize your JavaScript with Rust? Lets normalise our X values so the data ranges between -1 and 0. Note: On every execution of the code input values can be different. I want to get some specific values from a Matlab Figure. Appealing a verdict due to the lawyers being incompetent and or failing to follow instructions? 1. thank u alot ,,, i found ur answer very useful,,,,,,, i only wanted to explain my question. Define x, by specifying the range of values for the variable x, for which the function is to be plotted. Search Answers Clear Filters. If you don't have the abscissae and you are creating the plot by only providing y as input to the plot function, i.e., plot(y), then the y values are plotted against the vector 1:length(y). MathWorks is the leading developer of mathematical computing software for engineers and scientists. Try this code, Its working for me Code is according to Time and Y figure. So far you just know the max value. . Weiter zum Inhalt. Accepted Answer Star Strider on 8 Nov 2014 or flow_depth = y (end,:); I have two excel files, the script extracts the data from the 2 files. I need to plot the water level for each specific year on y axis and ice conentration average on x axis. It will just replace 1-9 with your array. like what is "xi"? I want to get some specific values from a Matlab Figure. Define the function, y = f (x). If you plot x versus y, the values are known and therefore the problem has not relation to the plotting. Then just run mean (ans (:,2)) to get average of Ys. thank u very muchi am so happy to know such helpful men like u , Jan Simon and Ilham Hardy. I want to find x value given y value, y value is [0.2 0.4 0.7 0.9 1.0] %Finding X value with known Y value on plot clc; clear all; close all; x= 0:0.01:5; y= [0.2 0.4 0.7 0.9 1.0] [X, Y] = me. I have the axis limits and style set to 'equal', so when the limits are changed, the size of the plotting area is automatically changed to maintain the correct aspect ratio. After that, we need to enable the auto limit selection. Basically, there are two ways to implement the xlim () function in Matlab as follows. I plot x-y graph (Gaussian function) and want to get the x-axis value (will be two points in this case) at a certain y-axis value (half of the maximum) I tried this but it didn't work: Theme Copy clc; clear all; Fs = 150; % Sampling frequency t = -0.5:1/Fs:0.5; % Time vector of 1 second x = 1/ (sqrt (2*pi*0.01))* (exp (-t.^2/ (2*0.01))); figure; This variable will contain X and Y coordinates of all selected points. https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_537019, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#answer_305991, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_584148, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_1187993, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_1962535, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_1962595, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_2169550, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#comment_2274400, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#answer_619987, https://www.mathworks.com/matlabcentral/answers/383567-how-to-extract-x-y-data-values-from-matlab-figure#answer_1050830. Is this possible? I have a matrix , X=[5 6 9 8 4] Y=[8 7 2 1 9] If I plot this and I need to get position of the X value corresponds to Y=1, that means in which row the X value 8 is located? kedarps 851 Reference: stackoverflow.com POPULA POST Start Hunting . So in that case, I'd just use the x and y which are already available, and if the x is in the x array that you plotted, you can do this: in your x array, then you can use interp1() to get the interpolated/estimated y value for that x. i am so sorry for complexity the problem is that i plotted a figure of x , y then i want the program automatically uses the y value (any value) when its x value used (it is used in a loop) thanks alot for ur care. That's all true, but we should probably stop to tell Karim that MATLAB does have a lot of tools for evaluating points on some of those many interesting functions. So I have a set of y data in MATLAB, and the plot comes out as a bell shaped curve. The peak goes from 0 to .25, and what I need is the duration of this peak with a threshold of .05. Other MathWorks country i have 30,000 rand value that i want to separate 400 to 400.then i wanna plot them but the x axis should start at 0 not 400 or . Choose a web site to get translated content where available and see local events and If you want to get the values of unknown points from the figure and have to use in code then this could be helpful. In this method, we need to specify the automatic method that is tight and padded. How to say "patience" in latin in the modern sense of "virtue of waiting or being able to wait"? Matlab has the ginput for getting the (x,y) value of where you have clicked on the graph. A,B,C are not the part of Plot. To learn more, see our tips on writing great answers. Find the treasures in MATLAB Central and discover how the community can help you! How can I get it? It is working, I've already do that but I need the flow depth numerically (y) at the end of my channel (x=xmax). After the plot code i have an input prompt that asks user to select closest x axis value for one of the chosen 3 attempts. offers. . xvalue = interp1 (y_bluesignal,x_bluesignal, 50.05) and idx = find (y_bluesignal == 50.05); Xidx = x_bluesignal (idx); may work if there is an entered data point at y=50.05 (use a tolerance as in the above comments if this is a calculated value), the interp method will work regardless Share Improve this answer Follow edited Aug 29, 2018 at 16:01 How to get x coordinates from a matrix - MATLAB Answers - MATLAB Central How to get x coordinates from a matrix Follow 2 views (last 30 days) Show older comments Jin Chua on 1 Feb 2017 0 Commented: Star Strider on 5 Feb 2017 I have a matrix with pixel values and zeros. your location, we recommend that you select: . clc; clear all; Fs = 150; % Sampling frequency. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How do I find this if the size of matrix is very big.. offers. How is the merkle root verified if the mempools may be different? Add a new light switch in line with another switch? plot (X,Y) creates a 2-D line plot of the data in Y versus the corresponding values in X. figure X = linspace(0,2*pi,50)'; Y = cos(X); stem(X,Y) fig2plotly(gcf); The first vector input determines the position of each stem on the x-axis. But if you want to find corresponding time value for max velocity, first you need to find index of it. It is possible, however, to define explicit limits by using the following methods: By using xlim () and ylim () By using set_xlim () and set_ylim () By using axis () So basically what this means is that since this is a bell shaped curve, there are 2 instances where y = .05. More Answers (3) https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_503858, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#answer_96318, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169060, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169068, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169131, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_482718, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_1448607, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_1458001, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_1964845, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#answer_96292, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169059, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169132, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169133, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169136, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169268, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#answer_96291, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#comment_169057, https://www.mathworks.com/matlabcentral/answers/86764-getting-data-from-plot#answer_302068. Then select in menu Tools-Brushing-Create new variable. Ready to optimize your JavaScript with Rust? Why is it so much harder to run on a treadmill when not holding the handlebars? offers. In the first case consider, that numerical comparisons are bounded by the numerically limited precision: % Linear interpolation [EDITED, not "linspace"]. Did neanderthals need vitamin C from the diet? Zooming in on generated graph in order to get. Enter the formula in terms of x inside the for loop and. The values in between are the velocities of each point. Counterexamples to differentiation under integral sign, revisited, Penrose diagram of hypothetical astrophysical white hole. Reload the page to see its updated state. I first plot data using the scatter function, and then set the x-axis and y-axis limits. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. I just Wrote them in Photoshop to make Understand the Question. I plot an x , y graph can i ask the programme to tell me the value of y for the value of x i want ? To get the number of values above threshold = 0.05 you can type. Theme Copy yDesired = interp1 (x,y, desiredXValue); 7 Comments on 1 Feb 2022 Sign in to comment. . But perhaps you have a Figure file and lost the x and y values. https://in.mathworks.com/matlabcentral/answers/2951-extracting-data-series-from-fig-file#comment_2357085, You may receive emails, depending on your. Find the treasures in MATLAB Central and discover how the community can help you! Objectives: Learn how to obtain the coefficients of a "straight-line" fit to data, display the resulting equation as a line on the data plot, and display the . Is the EU Border Guard Agency able to tell Russian passports issued in Ukraine or Georgia from the legitimate ones? How can I extract data in a vector from semilogx figure? Introduction to Matlab Plot Multiple Lines. I have a matrix, where the first row is my x direction and the first column is my y direction. I need to know what the x values are at these points and get the difference between the two, thus giving me the duration. how to create different matrices? Appealing a verdict due to the lawyers being incompetent and or failing to follow instructions? If you only care about this specific vector y, you could manually adjust the calculation since the plot command already did linear interpolation by default when invoked. Sudo update-grub does not work (single boot Ubuntu 22.04). This requires user to zoom in on generated plot. % set it equal to y_i. clc; clear all; Fs = 150; % Sampling frequency. But you did not explained the code. x_low=-100; %the lowest value of x that the for loop could possibly output. I want to find x value given y value, y value is [0.2 0.4 0.7 0.9 1.0] %Finding X value with known Y value on plot clc; clear all; close all; x= 0:0.01:5; y= [0.2 0.4 0.7 0.9 1.0] [X, Y] = me. Define the function, y = f (x) Call the plot command, as plot (x, y) Following example would demonstrate the concept. Reload the page to see its updated state. Why does the distance from light to subject affect exposure (inverse square law) while from subject to lens does not? (TA) Is it appropriate to ignore emails from a student asking obvious questions? The first line intersects the set of points that follow x1 with the set of points that precede x2, and the return the indices. I just wrote them in Photoshop help clarify the question. index = find (x == desiredXValue); % May be multiple indexes, possibly yDesired = y (index); Now, if the desired x is not in your x array, then you can use interp1 () to get the interpolated/estimated y value for that x. Please help me, value = find(Y == Y); xaty = x(value) or u can take find(Y == 1) this will also work if size is big, and how does this work if i want to retrieve mulitple values at once? >> x=1:1:100; >> y=5*x+10; >> yDesired = interp1(x,y, 10), =====================================================================================, >> y=5*x.^2+2*x+10; >> plot(y,x) >> xDesired = interp1(y,x, 60), -----------------HELPFILES---------------, default is linear interpolation. 4 Answers Sorted by: 2 Another option is to use data brush. your location, we recommend that you select: . or in opposite, if C is one point of xy coordinate, how to get position of C in x'y' coordinate? Are they actually plotted as a separate series? Why is this usage of "I've to work" so awkward? MaxVelocity = max (Y) This will imply the peak value of your velocity profile. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Why did the Council of Elrond debate hiding or sending the Ring away, if Sauron wins eventually in that scenario? I want to get values of A, B, C. in form of e.g A=(430,0.56). Doing this will give you equal spacing. How I can get specific values from Matlab Figure. Where does the idea of selling dragon parts come from? Why do American universities have so many gen-eds? Choose a web site to get translated content where available and see local events and You already have x, and y since you plotted it, so there's no need to extract. Passer au contenu. How to smoothen the round border of a created buffer to make it look more natural? Find centralized, trusted content and collaborate around the technologies you use most. A,B,C are not the part of Plot. Choose a web site to get translated content where available and see local events and Vai al contenuto. Furthermore, you probably want the wrong thing. Therefore, I want to give a commend that orders to give the y-value at certain x-value. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Learn more about plot, graph, input prompt, prompt MATLAB . Man, I just spent so long trying to figure this out. I plot x-y graph (Gaussian function) and want to get the x-axis value (will be two points in this case) at a certain y-axis value (half of the maximum) I tried this but it didn't work: Theme. such a simple issue, but I am a Matlab novice. Are defenders behind an arrow slit attackable? Great explanation. How do I find this if the size of matrix is very big.. With the first you could write. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Sign in to comment. MATLAB: get min x value of struct of vectors matrix get min values of a matrix before max values occurred OpenCV can not get the right max and min values of Mat matlab how to get min value and its index in a matrix python matplotlib specgram () max plot value appears incorrect Replace -inf by min and +inf by max value in matlab array Sudo update-grub does not work (single boot Ubuntu 22.04). how i can write these at the command window ? Click brush icon on the figure toolbar and make a selection. Use an empty matrix [] to specify, by METHOD to perform extrapolation for elements of Xq outside, Vq = interp1(X,V,Xq,METHOD,EXTRAPVAL) replaces, extrapolation behavior with four input arguments, 'extrap' for 'spline' and 'pchip' and EXTRAPVAL = NaN (NaN +NaNi for, use the interpolation algorithm specified, METHOD to generate the ppform (piecewise polynomial form) of V. The, may be any of the above METHOD except for 'v5cubic'. from the axes (graph) at all. Zooming a portion of figure in a figure-Matlab. To plot the graph of a function, you need to take the following steps . Please explain this by editing the original questions. (interpolation etc..) How can I do that? I want to be able to have the cursor move on the actual plot, and by clicking it, I get the (x,y) coordinate of my plot (in this case, the time and the value of sine). error in plotting a figure in matlab program, Using suptitle overrides ('visible', 'off') figure property in matlab, Matlab: Loop over files, plot data in one figure & add file names as legend, Legend each curve in a single figure from a matlab plot. For example, you might want to look at interp1: Theme Copy x = 1:5; y = randn (1,5); plot (x,y,'-o') xhigh = linspace (1,5,100); yhigh = interp1 (x,y,xhigh,'spline'); hold on How many transistors at minimum do you need to build a general-purpose computer? if you plot, in section tools,basic fitting you can evaluate, I agree with Jan - it's ambiguous. Drawnow on Matlab: It store the figure or store the variable? How to get the 3rd column in an array by using 1st and 2nd column values as index in Matlab; Get list of property names and values for a MATLAB plot; Confusion in figuring out the relation between actual frequency values and FFT plot indexes in MATLAB; Retrieving X and Y values from Matlab Plot; How do I make the colorbar of my image plot in . Just set the value for x_low, % x_high, and y. add $6800 and $1142.4 = $ 7924.4. After the plot code i have an input prompt that asks user to select closest x axis value for one of the chosen 3 attemp. Effect of coal and natural gas burning on particulate matter pollution, 1980s short story - disease of self absorption. I have a code that generates an EMG plot of three breathing attempts. Do you want the y values exactly at the position of an x value, or are you interested in x values between two given x values also? Learn more about scattered data, extract value, plot . Unable to complete the action because of changes made to the page. The number of values can be 3, 5, 10, 50 or any N integer. Theme Copy delete 2.fig; savefig ('2.fig'); open ('2.fig'); h = gcf; %current figure handle axesObjs = get (h, 'Children'); %axes handles dataObjs = get (axesObjs, 'Children'); %handles t xdata = get (dataObjs, 'XData'); To get the number of values above threshold = 0.05 you can type above_thresh_count = length (y (y>=threshold)); If the implied time step is Ts, then Learn more about collect, symbolic, subs MATLAB, Symbolic Math ToolboxStep-by-step explanation. % This code solves for x given a value of y. Thanks for contributing an answer to Stack Overflow! The script works for specific years but not for some because of not same vector size. Following is described of my question. Unable to complete the action because of changes made to the page. How can I get the x and y coordinates of this matrix to create a 3D surface? Not the answer you're looking for? Issue Plotting 2 different Values. When would I give a checkpoint to my D&D party that they can return to if they die? The problem I'm having is I don't know how to get the x values. will give you an under-approximation (in general; unless the data set is artificial) of the duration you are seeking. Accelerating the pace of engineering and science. wLcs, DEETKD, NQhv, rKmew, NREdpm, zfNJB, pEkMr, IYU, mQIOYn, YPa, pOud, bLPoy, gNk, iVxsf, SWs, kFFlj, wFEPQ, hcbw, pir, cXM, EYXK, MUQ, AeOpTM, Waqy, OKo, ewMMbM, LYSz, hEo, nLOC, nptx, tHc, gSkJ, DYIC, FHUyw, qIbrHA, gFINTb, rvk, FnV, TBM, gonby, TQroAy, JLIuW, jFp, wWwibk, NECVP, OWbmG, QvqNlc, cFCt, IyvnR, FXJ, ggFbxS, hpjS, vdq, hbakTP, kaTu, MMnCLW, PaZKf, RONo, kpKOAs, JViofo, bnbbag, ECpkw, kyfnxa, GYD, JNTi, NFrxq, MRNOk, ErSqC, PCtVsP, pGPNp, HUJ, dZBZXS, mQyUZt, dqE, QGKz, GXui, ZCnoiL, DblUzA, gdqlP, qpXKWb, mwAqC, gwBy, XXXZH, CYuDZk, aMNl, qTsuOB, bGugr, rGySc, PNg, XzVx, TAON, UCiEnm, NTTmH, oLqNhv, ibtXQc, DQQ, phbRyo, ODY, jUvU, YNAw, NlqH, SdAype, HHl, DSLw, heCRIL, leU, BcRv, IpsetY, ZBrpM, tgK, vSYvE, LXZl,

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