Grocer Function
NAME
matdiv - matrix quotient
CALLING SEQUENCE
[out]=matdiv(x,y)
PARAMETERS
Input
x,y = two matrices (not of the same dimension but that are row or column compatible)
Output
out = x./y where x and y are row or column compatible
DESCRIPTION
Performs matrix quotient even if matrices are not of the same dimension, but are row or column compatible
EXAMPLE
1) x1=ones(7,1);x2=[1:7]';y = lag([x1 x2],1,4);z=0.5*ones(7,1);matdiv(x,z)
2) w = matdiv(x,resid);
Example 1 gives the matrix:
! 8. 8. !
! 2. 2. !
! 2. 4. !
! 2. 6. !
! 2. 8. !
! 2. 10. !
! 2. 12. !
Example 2 (taken from lad) makes the term by term division of each column of matrix x ((nxk) matrix of exogenous variables) by the (nx1) vector of absolute residuals from the ols regression of y on x.
AUTHOR
Eric Dubois 2002