How to choose data with three conditions to plot contour

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MS
MS 2020-7-31
评论： MS 2020-7-31
I want to choose all the values from -50:1:50 with three conditons.
1, greater than zero(x>0),
2,smaller than -25 (x<-25)
3,replace the values between 0 to-25 with zero. x(x>=-25)=0;
But, i am unable to plot the contour from below code.
x = -50:1:50;
x = max(x,0) & min(x,-25)% logicals are wrong
% please suggest
Error using griddata
Invalid input arguments

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采纳的回答

Serhii Tetora
Serhii Tetora 2020-7-31
x(x<0 & x>-25) = 0;

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