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center
center
Calling Sequence
s=center(x) s=center(x,'r') or s=center(x,1) s=center(x,'c') or s=center(x,2)
Arguments
x: real or complex vector or matrix
Description
This function computes s, the centred version of
the numerical matrix x.
For a vector or a matrix x, s=center(x)
returns in the (i,j) coefficient of the matrix s
the value (x(i,j)-xbar), where xbar is
the mean of the values of the coefficients of x.
s=center(x,'r') (or, equivalently,
s=center(x,1)) is the rowwise center reduction of the
values of x. It returns in the entry s(i,j)
the value (x(i,j)-xbarv(j))(j) with xbarv(j)
the mean of the values of the j column.
s=center(x,'c') (or, equivalently,
s=center(x,2)) is the columnwise center reduction of
the values of x. It returns in the entry
s(i,j) the value (x(i,j)-xbarh(i))) with
xbarh(i) the mean of the values of the i row.
Examples
x=[0.2113249 0.0002211 0.6653811; 0.7560439 0.3303271 0.6283918] s=center(x) s=center(x,'r') s=center(x,'c')
See Also
- wcenter — center and weight
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