st: mata st_view( ) and change in stata data

[Carl Nelson <chnelson@uiuc.edu>]

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

mata
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)
_equilr(a,r)
end

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

I would appreciate any help correcting my error. Thanks.

Carl Nelson
ACE
UIUC
Urbana, Illinois

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