MATLAB: How to form a matrix from a given condition

matrix

I want a 24*5 matrix which have only 1,-1,&0 values

Best Answer

randi([-1 1], 24, 5)

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MATLAB: How to form a matrix from a given matrix

Use nchoosek:

 A = [1 3; 5 4]; %Note that it does not make sense to have A as a matrix. 
 %A = [1 3 4 5] would make more sense.
 B = nchoosek(A(:), 3)

MATLAB: Ismember as a condition

Yes needed to combine with the time column.

load Obs.mat
load WRF.mat
WRF_Data.Date = WRF_Data.Date + duration(hour(WRF_Data.Time),minute(WRF_Data.Time),0)
Obs_Data.Hourly_DATE + duration(string(Obs_Data.Time),'InputFormat','hh:mm');
newtable = innerjoin(Obs_Data,WRF_Data,'LeftKeys','Hourly_DATE','RightKeys','Date');

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MATLAB: How to form a matrix from a given matrix

MATLAB: Ismember as a condition

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