Monday, March 06, 2006

st: follow-up: trouble expanding a macros

All,

I am still having trouble using a macro to refer to a windows directory: Explicitly naming the directory & file in a use statement works works. E.g.,

> use F:\0_stat.data\0_homenet.data\0_freshmen\transition\withlag_2sls.dta, clear

I can define the macro, and display seems to indicate that my definition is correct:

> local dir F:\0_stat.data\0_homenet.data\0_freshmen\transition> di "`dir'""withlag_2sls.dta" > F:\0_stat.data\0_homenet.data\0_freshmen\transition\withlag_2sls.dta

However, I still get an error when I add the file name, either surrounding the filename in quotes or not:

> use " `dir'""withlag_2sls.dta", clear > invalid '"withlag_2sls.dta' > r(198); > > use " `dir'"withlag_2sls.dta, clear > invalid 'withlag_2sls.dta' > r(198);

Defining the macro using quotes around the directory names does not seem to help. Again, the macro seems to expand correctly using the display command, but not with the use command.

> local dir "F:\0_stat.data\0_homenet.data\0_freshmen\transition\"

> . di "`dir'""withlag_2sls.dta" > F:\0_stat.data\0_homenet.data\0_freshmen\transition\withlag_2sls.dta >

> . di "`dir'""withlag_2sls.dta" > F:\0_stat.data\0_homenet.data\0_freshmen\transition\withlag_2sls.dta > > . use "`dir'""withlag_2sls.dta", clear > invalid '"withlag_2sls.dta' > r(198); >

Any suggestions? I must not be understanding something fundamental about expanding macros.

Robert Kraut

> > ------------------------------ > > Date: Sat, 4 Mar 2006 17:07:28 -0500 > From: "Austin Nichols" <austinnichols@gmail.com> > Subject: Re: st: macro with a dot > > Try > local dir F:\0_stat.data\0_homenet.data\0_freshmen\transition> di " `dir' " > di `dir' > to see where you have gone wrong. > > On 3/4/06, Robert Kraut <robert.kraut@cmu.edu> wrote: > >>I am trying to create a macro to refer to the directory where data and >>files are stored, so I can move do files easily between computers. I >>define the dir macro as: >> local dir F:\0_stat.data\0_homenet.data\0_freshmen\transition>>But when I try to refer to dir's values, I get an error, as if the dir >>value is broken at the dot included in a directory names: >> >> dis `dir' >> data\0_freshmen\transition\ invalid name > > * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/


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