plot data into a while lopp without storing the data
If you want each new iteration to replace previously plotted results: i = 0 while i < 2500 % do stuff hold off...

3 days ago | 0

Plotting different variable sets on same graph
plot(Current1, Power1,'r') hold on plot(Current2, Power2,'b')

3 days ago | 0

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A compact way to find elements of an array which are greater, equal, or less than the elements of a second array
a1 = [0 4 7 8 1 2 3]'; a2 = [4 4 6 9 9 1 1]'; b = sign(a1-a2)

3 days ago | 1

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How do you set the scale on a color bar from the figure window?
i don't know how to do it from the figure editor tools, but you can do it with a few lines of code, below. To demonstrate, I'll ...

3 days ago | 0

if statement for every possibility
n = 10:99; weird_numbers = []; for i = n factors = divisors(i); factorArray = factors(1:end-1); lengt...

4 days ago | 0

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Calculate average between min and max numbers in column 3 depending on values in column 2, for each value in column 1
matrix = randi([1 16],2000,3); search_number = 7; idx_1 = matrix(:,1) == search_number; col2_vals = unique(matrix(idx_1...

4 days ago | 1

Find the Minimum Combination of Sum
N = 100; window_size = 3; A = rand(N,1); signs = 1-2*(dec2bin(0:2^(window_size-1)-1,window_size)-'0').'; comb = NaN(N,1)...

4 days ago | 1

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Getting "Index exceeds array bounds" for line 103 but I do not see how the index number is more than the elements. Any help would be awesome!
Assuming output is an n-by-6 cell array, length(output) will be n if n >= 6 and 6 otherwise (i.e., if n < 6). Note that length()...

4 days ago | 0

Why won't this function plot?
Try plot(c1_exp) or plot(t,c1_exp) With your for loop, you're plotting one data point at a time, which is imposs...

5 days ago | 0

How do I convert a frequency table to a single vector?
First, setting up the variable as you have it: Blank2 = zeros(23,2); Blank2(:,1) = 1:23; Blank2(3,2) = 1; Blank2(4,2) = 8; ...

5 days ago | 0

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Create push buttons with a For loop and provide individual callbacks within the For loop.
When you specify a callback as a character vector, the callback executes in the MATLAB workspace (reference here), which may or ...

5 days ago | 0

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Split a vector into 2 oscillating vectors?
Here is a way to do it. Demonstrating with smaller vectors so as to more easily verify the result. To use it on your column vect...

5 days ago | 0

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For Loop Question on index
data = [ ... 1.0 68.0 45.0 92.0; ... 2.0 83.0 54.0 93.0; ... 3.0 61.0 67.0 91.0; ... 4.0 70.0 66....

5 days ago | 0

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How can I randomize positions with retract/replacement and save in a text file?
It sounds like you want a 30-by-40 matrix where each element is one of {20,40,60,80,100,120,140} and no two adjacent elements on...

5 days ago | 0

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How to replace the numbers in matrix?
Here is a way to do it using linear interpolation on each row. It will interpolate between the non-zero numbers to fill in the z...

5 days ago | 1

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How to display sequence of images in GUI
This line: img_files = num2str((1:seq_len)', [img_path '%04i.jpg']); should be like this: img_files = strcat(img_path,num2str...

5 days ago | 0

I dont understand, i try to use solve to find x in Matlab Function Block
Looks like you should use syms rather than sym fcn(0) function x = fcn(y) syms a; r1=7.3e-5; r2=-1.1e-7; s1=1.6e-1; s2=1....

6 days ago | 0

line([min(X) max(X)],[3100 3100]);

6 days ago | 0

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how to create a matrix when using surf function？
What you are doing there is making F a scalar, but F needs to be a matrix the same size as u and v, so something like this: F =...

6 days ago | 1

How to export matrix in the form of (column number, row number, value) in CSV?
A = randn(8,4) [m,n] = size(A); [c,r] = meshgrid(1:n,1:m); writematrix([c(:) r(:) A(:)],'output.csv'); % check the result ...

6 days ago | 0

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Creating different types of arrays with conditions, then make an array with the combination of all elements, and finally separate the arrays with a sequence
x = 3; y = 4; a = 1000*(1:x).'+(1:y) A = a(randperm(x*y)) [~,idx] = ismember(A,a); [~,new_idx] = sort(mod(idx-1,x)+1); a_n...

6 days ago | 0

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How do I extract a vector from a single field in a structured variable?
Maybe this? folder_names = struct('name',{'a','bb','ccc'}) participant_ID = {folder_names.name}

6 days ago | 1

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Number of rows based on frequency of one integer and position of another integer
Get the set of unique numbers in the 2nd column: col2_vals = unique(matrix(:,2)); The 5th highest is 4th from the end. S...

6 days ago | 0

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How to display arc length of the line created on a line plot based on the input data
% some x and y: x = [10:-1:2 2:10]; y = [5+sqrt(x(1:end/2)) 5-sqrt(x(end/2+1:end))]; plot(x,y,'-o'); set(gca(),'XLim',[0 12]...

6 days ago | 0

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Create a new table from a plot constructed from data points
% a table with 1000 rows: t = table((1:1000).',2*(1:1000).'+100,'VariableNames',{'x' 'y'}) % user-defined interval over x: x_...

6 days ago | 0

Y data addition on scatter plot
You need to convert those cell arrays to numeric matrices before you can plot them (scatter or otherwise): X= { 2 ,3,4,5} Y={ ...

6 days ago | 0

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Determine the current position of an object in the context of drag and drop
Basically, in the motion function and button up function, you have to check whether dragging is an element of a or of b and set ...

6 days ago | 0

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How to improve calculation time for a huge matrix?
The original method but with SS = 5 to reduce the time (takes ~3.5 seconds): tic syms Q1 Q2 D3 EndEffectorVariables (Q1,Q2,...

6 days ago | 0

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Random sized hexagones in a hexagone grid
The problem is here: Rcore = rand(size(Xh))*range(bounds)+bounds(1); R1core = rand(size(Xl))*range(bounds)+bounds(1); Those a...

7 days ago | 0

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