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Re: st: RE : st: Do-file no result, command line OK
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: RE : st: Do-file no result, command line OK
Date
Tue, 29 Mar 2011 13:39:04 +0100
I don't know how looking in the Data Editor can convince you that
nothing has changed among 5 million observations. Did you check all of
them?
The only convincing evidence that nothing has changed is that you
clone the variable, issue the -replace- command on the clone, and then
compare with the original.
Nick
On Tue, Mar 29, 2011 at 1:31 PM, <[email protected]> wrote:
> Thanks Uli, but no -preserve- nor -restore-. Quite weird indeed.
Ulrich Kohler
> This sounds pretty weird.
>
> I sometimes experience something like this in Do-Files with a
> -preserve-/-restore- part in it. When running those parts of the Do-File
> that contain the -preserve- command but does not contain the -restore-
> command, the end of the Do-file brings you back to the preserved data
> set.
> [email protected]:
>> I am running a do-file on a large dataset (4'999'453 observations). One of my command is:
>>
>> replace companyname_short=subinstr(companyname,"."," ",.)
>>
>> That is, I replace the dot in the variable "companyname" by a blank in the variable "companyname_short". When I run the do-file, stata tells me that x hundred thousands of "real changes" have been made, but actually nothing have changed in my dataset when I open the data viewer. However, when I copy and past the command from the do-file into the command line, everything works fine.
>>
>> Any idea to make it run smoothly with the do-file?
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