Martin, thank you a lot.
I will read the paper seriously later.
Best regards,
Rose.
----- Original Message -----
From: Martin Weiss <[email protected]>
To: <[email protected]>
Subject: AW: AW: st: How to use the marco names?
Date: 2009-8-5 17:45:25
<>
You want to start from sect.2 of NJC`s
http://www.stata-journal.com/sjpdf.html?articlenum=pr0005
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von [email protected]
Gesendet: Mittwoch, 5. August 2009 11:42
An: statalist
Betreff: Re: AW: st: How to use the marco names?
Dear Martin,Dan and others,
I am completely confused by the use of local marco.
Take some examples,
r(files) after -fs-
r(names) after -est dir-
r(mean) after -su-
//maybe the three above are not local marco, but I need to use it in my
following procedure.
r(levels) after -levelsof-
// it seems different when the type of variable following -levelsof- is
different.
........
How to display and use them in my follwing procedure?
di `r(levels)'
di `"`r(levels)'"'
di `r(files)'
di `"`r(files)'"'
di `r(names)'
di r(mean)
Something similar is,
local x="1 2"
local x "1 2"
local x 1 2
local x: r(mean)
Concretely, when to add single quote and double quote? when to use colon?
especially,the difference among them.
Maybe someone can tell me how to learn these in the stata help file if any.
Thank you a lot.
Best regards,
Rose
----- Original Message -----
From: Martin Weiss <[email protected]>
To: <[email protected]>
Subject: AW: st: How to use the marco names?
Date: 2009-8-3 22:33:34
<>
". foreach i of local r(files) {
is that r(files) is not considered a local macro."
You can use another -foreach- syntax to get the thing moving, though:
*************
fs d*.dta
foreach file in `r(files)'{
di "`file'"
}
*************
HTH
Martin
-----Urspr黱gliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Dan Blanchette
Gesendet: Montag, 3. August 2009 16:22
An: statalist
Betreff: Re: st: How to use the marco names?
The SSC command -fs-, returns the file names in the
macro r(files) with double quotes around each filename.
So if you:
. fs *.csv
bs.csv is.csv price.csv big.csv share.csv mag.csv plu.csv
and use compound quotes around `r(files)':
. di `"`r(files)'"'
"bs.csvis.csv" "price.csv" "big.csv" "share.csv" "mag.csv" "plu.csv"
and use compound quotes again when setting the local macro hh:
. local hh `"`r(files)'"'
the double quotes around the filenames will be preserved.
The errors you experienced were due to the internal double quotes and
some of them being removed by Stata since you didn't use compound
double quotes.
The problem with:
. foreach i of local r(files) {
is that r(files) is not considered a local macro.
Hope this helps,
Dan Blanchette
Research Associate
Center for Entrepreneurship and Innovation
Duke University's Fuqua School of Business
[email protected]
------------------------------------------------------------
>>From [email protected]
To statalist<[email protected]>
Subject st: How to use the marco names?
Date Sun, 02 Aug 2009 14:47:51 +0800
Dear statalists,
I am confused by marco names. Could anyone help me ?
In my opinion, the following four methods should get the
same results.However, not as I expected.
. fs *.csv
bs.csv is.csv price.csv big.csv share.csv mag.csv plu.csv
. di `r(files)'
bs.csvis.csvprice.csvbig.csvshare.csvmag.csvplu.csv
. local hh `r(files)'
. foreach i of local r(files) {
2. di "`i'"
3. clear
4. insheet using `i'
5. }
{ required
r(100);
. foreach i in `r(files)' {
2. di "`i'"
3. clear
4. insheet using `i'
5. }
bs.csv
(6 vars, 13299 obs)
is.csv
(9 vars, 13403 obs)
price.csv
(4 vars, 2714 obs)
big.csv
(6 vars, 53870 obs)
share.csv
(9 vars, 2755 obs)
mag.csv
(8 vars, 45028 obs)
plu.csv
(7 vars, 2751 obs)
. foreach i in `hh' {
2. di "`i'"
3. clear
4. insheet using `i'
5. }
bs.csv
invalid '"'
r(198);
. foreach i of local hh {
2. di "`i'"
3. clear
4. insheet using `i'
5. }
bs.csv
invalid '"'
r(198);
Thank you for any help.
Sincerely,
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