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Select particular 3D volumes of a 4D matrix
matrix_4D = matrix_4D(:,:,:,[1:11 14:29]);

約5年前 | 1

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How do I find means of samples and then mean of the means?
Although it sounds like a homework question, I'll answer it since it is basic. random = randi(1000000,1000,25); mean_row = mea...

約5年前 | 0

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How can I create a data table and export it as an excel file?
Hey bobby! Glad to see you again! Here you are: datadirectory = '/Users/name/Desktop/data/'; import = dir(fullfile(datadir...

約5年前 | 1

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How to add a line to a freqz plot?
yline(0)

約5年前 | 0

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Adding labels to fsurf contour lines
You can add text by entering the following: text(0,30,160,'Text Label','Fontsize',12) where 0, 30, and 160 are the x, y, and...

約5年前 | 0

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How to assign xlabel,ylabel from my selected popup menu list?
If App Designer: value = app.DropDown.Value; value2 = app.DropDown2.Value; value2 = app.DropDown2.Value; if value == 'Opti...

約5年前 | 0

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How to find the intersection of a fitting line with a logarithmic y-axis?
A= [10 40 60 80]; B = [5 6 7 8]; scatter(B,A,20,'filled') set(gca,'YScale','log') % Polyfit p = polyfit(B,A,2);% 2nd or...

約5年前 | 0

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how to find peaks for 100%,75%,50%,25% of the max peak
I'm not entirely sure what peaks you are trying to identify. Below are techniques you can use. You can add labels to your pea...

約5年前 | 0

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How do I obtain a 2D or 3D representation of a georeferenced raster?
You can use the surf function. Below are links to some examples: https://www.mathworks.com/matlabcentral/answers/598591-how-to-...

約5年前 | 1

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How to plot entire row of numerical matrix from corresponding logical array?
Drill = [ 0.2324 0.0010 -0.2805 0.2324 0.0005 -0.2805 0.2322 0 -0.2800 0.2324 0 -0....

約5年前 | 0

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How to get the smallest value in submatrices
cellfun(@min,B,'UniformOutput',false) %or cellfun(@min,cellfun(@min,B,'UniformOutput',false),'UniformOutput',f...

約5年前 | 0

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How to plot coordinate data to appear solid with lighting effect?
There may be a better way doing it. Here is my attempt: x1 = 0; x2 = 0; y1 = -.8; % value based on angle of 25 degrees y2 = ...

約5年前 | 0

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How do I display the workspace variable file name via MATLAB script?
"And yes, each .mat file in the loop would save the matrix under the variable name "IntensityImagedataCh1". Would that impact ...

約5年前 | 1

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Find corresponding values in different arrays
To be clear, you want to replace the sixth row of read{1,2} with the first row of T? If so, here it is for the specific examp...

約5年前 | 0

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Mean and median at each interval
Data = importfile('Data.xls') % Histogram figure histogram(Data.Temp,[floor(min(Data.Temp)):1:ceil(max(Data.Temp))]); xlab...

約5年前 | 0

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Bubbleplot in multiple dimensions
Have you looked into using bubblechart3? https://www.mathworks.com/help/matlab/ref/bubblechart3.html

約5年前 | 0

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How to activate bubble chart
bubblechart was introduced in R2020b. What version of MATLAB do you have? https://www.mathworks.com/help/matlab/ref/bubblecha...

約5年前 | 0

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Plot and color curves depending on the condition
I am unsure what you mean by "he sum of 3d row as y-axis(2.4443, 2.4443, 2.4443 in the example)." For now I am plotting the 5th...

約5年前 | 1

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For loop including zeros in beggining
You don't need to create a for loop. You can simply do this: newY = y(y~=0); newX = x(y~=0);

約5年前 | 0

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How would I add a log scale (i.e 10^-1) as an x axis label to this polar plot?
h = gca; h.RAxis.Scale = 'log' "The coordinate system or ruler class does not support log axis scale." I found a workaround...

約5年前 | 0

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file or directory ~ does not exist?
I believe the dataset needs to be entered as 'subject01.ds'?

約5年前 | 0

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How can I plot a histogram for each of the multiple .mat files located in a folder outside of MATLAB?
Here is one method you can use: directory = '/Users/NAME/Desktop/selectedmatricies/'; %Alternatively, could use: directory = ui...

約5年前 | 2

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Hey all newbie to matlab, was wondering what I can do to fix the "for loop" code I have below, I am getting the "array indices must be positive integers." Thanks in advance!
clear; counter = 0; y=[]; for t = -15:0.2:15; y = [y; counter]; counter = ((t^4)-(3*t^2)+(2*t)-1); end The indi...

約5年前 | 0

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Setting focus in AppDesigner
I found this question here: https://www.mathworks.com/matlabcentral/answers/353504-give-focus-to-an-edit-field

約5年前 | 0

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How can I create a scatterplot and map the outputs to a logarithmic colorscale?
You can change the colorbar's scale to logarithmic with the following command: set(gca,'ColorScale','log') Here is it altoge...

約5年前 | 1

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Reactivate the app/gui after running a call back code
Please see solution here: https://www.mathworks.com/matlabcentral/answers/296305-appdesigner-window-ends-up-in-background-after-...

約5年前 | 0

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Using uigetfile to select file in App Designer is causing the matlab script to open after file is selected
You can try this: % Button pushed function: BrowseFileNameButton function BrowseFileNameButtonPushed(app, event) [fileNam...

約5年前 | 2

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need help to find all results in one table , or any possible form
Is this what you were trying to do? R1=1:1:10; R2=1:1:10; a=[22 17 20 7 33 19 8 30 4 9 36 14 12 44 40 ]'; b=[25 18 44 2...

約5年前 | 0

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How do you extract index values from the data tips function into a variable or an array?
You can access it as such: h = gca; %gca stands for get current axes for i = 1:NumberofDatatips h.Children.Children(i).Cont...

約5年前 | 0

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deleting unneeded columns from tables after using them
1. t.YEAR = []; t.MONTH = []; t.DAY = []; t.HOUR = []; t.MIN = []; 2. struct.date = t.Date(1); t.Date = []; struct.tab...

約5年前 | 0

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