Answered
Setting a value for multiple axes handles at once (without a for-loop)
Setting a value for multiple handles is pretty easy: set(axs,'Units','centimeters') getting values is a little trickier. For y...

6 years ago | 0

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Answered
Array of index, should return indexed values on the same array format
It sounds like weights = v(m); should work

6 years ago | 0

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How to find the mean of categorical data
check out splitapply. You may need to change the format of your data, but it does exactly what you want: G = findgroups(Day); ...

6 years ago | 0

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What is the inversion method used in (inv) function in MATLAB
read the documentation: "inv performs an LU decomposition of the input matrix (or an LDL decomposition if the input matrix is H...

6 years ago | 1

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Answered
How would one tablize the iterations from a while loop with the variables at the top?
something like this will work, but may not be the most efficient depending on the number of iterations: tol = 1e-5; c_old = In...

6 years ago | 0

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Error: Array indices must be positive integers or logical values. Why??
you need a '*' between 'z' and the parenthesis. It is interpreting z(...) as indexing z

6 years ago | 1

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how to find max value of a function with a for loop
Loop isn't necessary unless you can't store the data in memory: e=y-(m*x-b); [e_max,idx] = max(e); x_max = x(idx); y_max = y...

6 years ago | 0

Answered
Storing all for-loop results of a specific variable in .mat-file
Assuming all the produced data can fit in memory: for ta=1:20 a = 3; % save each value in an array va(ta) = (ta.*a)...

6 years ago | 0

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Select Specific Values in Matrix Based on Index Values Listed in Array...
Actually, you can index directly with 'b' after loading your variable into 'a': a(b,:) It may be possible to only load the row...

6 years ago | 1

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Answered
For loop and indexing help
check out the discretize function

6 years ago | 0

Answered
How to add both title and change the scale of a color bar
cb=colorbar(); cb.Label.String = 'Electric Potential Field, V'; cb.Ticks = -45:15:150; caxis([-45 150]);

6 years ago | 0

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Answered
How to locate significant points in a graph?
check out findpeaks

6 years ago | 1

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Using the result as a input in the loop again
Change Mw1(x)=(mW+M(x)/18.0); to % first iteration assumes Mw1(0) = 0 if x==1 Mw1(x)=mW; % later loops access the valu...

6 years ago | 0

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Answered
How to sort a matrix by a predefined order
A=[1 2; 7 8; 5 6; 3 4]; B=[1; 4; 3; 2]; A = A(B,:);

6 years ago | 0

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Question on using interpolate function
Check your data again. "data" is slightly less than 5 until x=0.485, and the first point exactly equal to 5 is x=1.71. You could...

6 years ago | 1

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Answered
Make an exception in ytickformat
x = rand(30,1); y = rand(30,1); scatter(x,y); ytickformat('%.2f') % get all the labels yt=yticklabels; % replace the first...

6 years ago | 0

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Answered
how can I check if there is a cell in a structure?
Check the size of struct.hi. If the second dimension is size 1, then the struct.hi(1,2) doesn't exist if size(struct.hi,2) == ...

6 years ago | 1

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Answered
copy figure to clipboard missing
This can be done with export_fig from Matlab Central: https://www.mathworks.com/matlabcentral/fileexchange/23629-export_fig exp...

6 years ago | 0

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create a matrix from matrix with zeros elements
I still don't quite see the pattern, but you can insert elements manually: x=[1 2 3 4 5 6 ; 7 8 9 10 11 12; 13 14 ...

6 years ago | 0

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Conversion from Cartesian X,Y,Z to domain-centric cylindrical coordinates
% example data X = 1000:1000:480000; Y = X; Z = sort(rand(size(X))); Domain_Center = [mean(X([1 end])) mean(Y([1 end])) mean...

6 years ago | 0

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Answered
How to extract certain rows and columns with the readtable option for Excel files.
(edited) Using the import tool, then generating code and clearing unnecessary details, this appears to be the way: opts = spre...

6 years ago | 1

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Choose random element of vector
% select a random integer between 1 and the last index of the vector ind_1 = randi([1 length(vector)]); % select a random inte...

6 years ago | 2

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HOW TO DELETE A LINE FROM A CREATING FILE
T = cell2table; writetable(T([1 3:end],:),'file.csv')

6 years ago | 1

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statistical features for each and every pixel in the image
I don't think these features are defined for a single pixel. Similar to asking for the standard deviation of a single number

6 years ago | 1

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Plotting Lennard-Jones Potential
It looks like you are only plotting single points, so you might miss them in the plot. Also, what is the purpose of U in this sc...

6 years ago | 0

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Why is this showing this undefined error for "^" input argument?
fun=@(y) y.^2-5*y+6 is the syntax you want

6 years ago | 0

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How to find data values that falls on line connecting loglog plot in matlab
Your interpolation is linear. Compare: loglog(x,y,'-s',xq,yq,'r*'); and plot(x,y,'-s',xq,yq,'r*'); Log-log interpolation can...

6 years ago | 2

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Adding numbers in one column and move the values in second column accordingly?
% set up examples: a1 = [0,4,5,6,7]; a2 = [0.1,0.2,0.3,0.4,0.5]; a1_new = [0:7]; % find locations of a1 in a1_new [~,loc]=i...

6 years ago | 0

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Interpolation for n-dimensional array data
check out griddedInterpolant, I think it'll do what you want

6 years ago | 0

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discrete-time (D-T) real exponentials subplot
You're mixing the plot number up with the element of the series, try: % set the discrete values for plotting (n in x[n]) n = 0...

6 years ago | 0

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