Man Scilab

sub2ind - matrix subscript values to linear index

Calling Sequence

I = sub2ind(dims,i1,i2,...)

J = sub2ind(dims,Mi)

Parameters

• dims : vector: the matrix dimensions
• i1,i2,... : the subscript value arrays(same matrix shape as I )
• Mi : matrix whose columns contains the subscript values.
• I : the linear index array

Description

sub2ind is used to determine the equivalent single index corresponding to a given set of subscript values. I = sub2ind(dims,i1,i2,..) returns the linear index equivalent to the row, column, ... subscripts in the arrays i1 , i2 ,.. for an matrix of size dims . In this case i1 , i2 ,.. must have the same shape and the result I has the same matrix shape. I = sub2ind(dims,Mi) returns the linear index equivalent to the subscripts in the columns of the matrix Mi for a matrix of size dims . in this case I is a column vector

Examples

i=[1 2 1 1 2 1 1];
j=[1 2 3 1 2 3 3];
k=[1 2 1 2 1 2 1];
sub2ind([2,3,2],i,j,k)

sub2ind([2,3,2],[i',j',k'])
</EXAMPLE>  
  

See Also

ind2sub ,   extraction ,   insertion ,  

Author

Serge Steer, INRIA

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