[Scilab-users] surf and %nan

[Rafael Guerra]

(now without a typo)

The original syntax can be fixed by feeding the a,b indices found as a 2xN matrix [a;b] into M:


x=1:100; y=1:200;
M= x.*.y';
M(10,11:99)=-999;
M(13,13)=-999;
M2 = M;

[a,b]=find(M==-999);

M([a;b]) = %nan;  // proper away of feeding indices into M

M2(M2==-999)= %nan;

M(isnan(M))=%pi;
M2(isnan(M2))=%pi;

-->max(M2-M)
ans  =
    0.

-->min(M2-M)
ans  =
    0.



Regards,

Rafael


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