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