Asked by Shubham Mohan Tatpalliwar
on 23 Oct 2018

if true

% code

x=[0,50,150,100,50,150,0,100,150,0,50,150]

y=[1,2,3,3,2,1,1,2,3,3,2,1]

i want to sort y as 0 to 1, 1 to 2 and 2 to 3

for x 0 to 50 and 50 to 100

Answer by Steven Lord
on 23 Oct 2018

If I understand what you've described correctly, you want to sort y and break ties among elements in y that have the same value based on the corresponding elements of x. Is that right? If so, you can pack the two vectors into a matrix and use sortrows to sort first by the column corresponding to y then by the column corresponding to x. In my sample code below, the y column is column 2 and the x column is column 1 so I sortrows using [2 1].

x = [0,50,150,100,50,150,0,100,150,0,50,150]

y = [1,2,3,3,2,1,1,2,3,3,2,1]

M = [x.', y.']

M2 = sortrows(M, [2 1])

If you need to know which row in M went to which row in M2 (or equivalently which elements in x and y went where in M2) call sortrows with two outputs.

Shubham Mohan Tatpalliwar
on 23 Oct 2018

What is your ultimate goal here?

to sort the values and count it

If so use histcounts.

yeah i have switched to hit counts but facing the same problem that i could not make a loop

if true

% code

for i =1:1:42

idxi= Achsemoment >=((i-1)*100) & Achsemoment<(i*100);

end

how should i code to create 42 vectors?

Steven Lord
on 23 Oct 2018

how should i code to create 42 vectors?

How are you planning to use that data? I suspect your ultimate goal is not "to sort the values and count it" -- unless this is part of a homework assignment, I expect you want to do something with the sorted data and/or the counts. What is that something?

Shubham Mohan Tatpalliwar
on 23 Oct 2018

from this sorted values

further i want to to sort them on next parameter

like sort(idx1(d>=0 & d<2)

and count the total number of the logical 1

and i want to do it for every vector i.e. every sterp (0 to 100 and so on)

which is time

and this time would be used for further calculations

this is the part of my project and the excel file is bigger so i cannot share it directly on the mathworks portal

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