Statalist The Stata Listserver

[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: mata st_view( ) and change in stata data

From   Carl Nelson <[email protected]>
To   [email protected]
Subject   st: mata st_view( ) and change in stata data
Date   Wed, 29 Nov 2006 15:58:18 -0600

The mata manual explains

st_view(X, ., ("mpg", "displ", "weight"))
X[2,1] = 123

will cause the second observation of mpg in stata to change.

I am trying to use mata to divide each row of 54 variables by their row
maximums. The mata code is

st_view(a, .,(" over04"," over05"," expect04"," expect05"," repeat04"," repeat05"," othover04"," othover05"," clean04"," clean05"," meatqaul04"," meatqual05"," meatvar04"," meatvar05"," vegqual04"," vegqual05"," vegvar04"," vegvar05"," deliqual04"," deliqual05"," delivar04"," delivar05"," bakequal04"," bakequal05"," bakevar04"," bakevar05"," grocvar04"," grocvar05"," stock04"," stock05"," nature04"," nature05"," help04"," help05"," checkout04"," checkout05"," specserv04"," specserv05"," community04"," community05"," prices04"," prices05"," discount04"," discount05"," special04"," special05"," specsotck04"," specstock05"," loyalprice04"," loyalprice05"," loyalstock04"," loyalstock05"," location04"," location05"))
t = (0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\70\0\0\0\0\0\0\0\0\0\0\0\0\0)
a = a :+ t
r = rowscalefactors(a)

After I run this the matrix a in mata is correct, but the variables in the stata data set haven't been

I would appreciate any help correcting my error. Thanks.

Carl Nelson
Urbana, Illinois

* For searches and help try:

© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index