How to sort 2 matching column only decending one of them?

I have matching period and height datas for wave analysis. I'm trying to sort wave height in descending order and match every individual period with its wave height. How can i do that?

[Jan]

Please post, which inputs you have in valid Matlab terms. Which class and dimensions? The physical meaning does not matter. What do you want to sort and what does "match every individual period with its wave height" mean? Can you post a minimal example of the inputs and wanted outputs?

[Stephen23]

See also:

https://www.mathworks.com/matlabcentral/answers/434869-error-using-sortrows-too-many-input-arguments

Answer 1

[Stephen23]

Either put the data into one matric and sort by one column, e.g.:

M = [T(:),H(:)];   % [period,height]
M = sortrows(M,-2) % sort rows by second column descending

Or sort one vector and then use the indices to sort the other:

[H,idx] = sort(H,'descend')
T = T(idx)

[dj]

Thanks a lot!

Answer 2

[Mark Sherstan]

Something along these lines should do it:

T = randi(10,100,1); % Random period
H = randi(20,100,1); % Random height

data = [H T];

dataSorted = sortrows(data,'descend')

[dj]

But i only want to sort H in descend order and code to rearrange positions of T for its H in the first place. How can i do that?

[Mark Sherstan]

What do you mean by code to rearranage position T for its H? When you use sortrows it keeps all the data together. As H and T are in the same matrix the data indices stay matched.