sub2ind - matrix subscript values to linear index
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
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>
ind2sub , extraction , insertion ,
Serge Steer, INRIA