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find Scilab Group Scilab Function find
NAME
find - find indices of boolean vector or matrix true elements
CALLING SEQUENCE
[ii]=find(x)
[ir,ic]=find(x)
PARAMETERS
x : a boolean vector or a boolean matrix or a "standard" matrix
ii, ir, ic
: integer vectors of indices or empty matrices
DESCRIPTION
If x is a boolean matrix,
ii=find(x) returns the vector of indices i for which x(i) is "true". If
no true element found find returns an empty matrix.
[ir,ic]=find(x) returns two vectors of indices ir (for rows) and ic (for
columns) such that x(ir(n),ic(n)) is "true". If no true element found
find returns empty matrices in ir and ic.
if x is standard matrix find(x) is interpreted as find(x<>0)
find([]) returns []
EXAMPLE
A=rand(1,20);
w=find(A<0.5);
A(w)
w=find(A>100);
SEE ALSO
boolean, extraction, insertion
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