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Re: st: Identify and Replace Values


From   "Tobias Friedli" <[email protected]>
To   [email protected]
Subject   Re: st: Identify and Replace Values
Date   Mon, 12 Jul 2010 21:28:19 +0200

This command worked perfect, all the Names are usable now. But the function still doesnt do what i want:

levelsof traded_model, local(traded)
levelsof new_model, local(new)
local onlytraded : list traded - new
local onlynew    : list new - traded
local others     : list onlynew | onlytraded
replace traded_model="others" if inlist(traded_model,"`others'")
replace new_model   ="others" if inlist(new_model,"`others'")

For the last two commands i get "0 real changes made". It seems like "onlytraded" and "onlynew" are empty... (althought traded contains about 70 more Names than new.) I have to do some more testing with it. If anyone sees the mistake in the Code, please tell me.. Anyways thank you all very much for your fast responses, i really appreciate it!!



On Mon, 12 Jul 2010 19:09:57 +0000
 Eric Booth <[email protected]> wrote:
<>

Try using -subinstr()-

	replace var = subinstr(var, " ", "_", .)

~ Eric

__
Eric A. Booth
Public Policy Research Institute
Texas A&M University
[email protected]
Office: +979.845.6754

On Jul 12, 2010, at 2:05 PM, Tobias Friedli wrote:

Thanks. This would be exactly what i am looking for. But it seems like this command was introduced in Stata 11 and i am stil working with Stata 10. Can i download this function somehow, so i can use it in Stata 10? Or is there a similar function?

On Mon, 12 Jul 2010 20:56:03 +0200
"Martin Weiss" <[email protected]> wrote:
<>
***********
h strtoname
***********
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Tobias Friedli
Sent: Montag, 12. Juli 2010 20:35
To: [email protected]
Subject: Re: st: Identify and Replace Values
Thank you very much, it seems to work like a charm. Only Problem is, that the some Model-names contain spaces and then Stata says "invalid name". I know there is a command to relpace all the spaces by an underscore, but i can't find it anymore. Anybody knows this command? Thanks
On Mon, 12 Jul 2010 13:52:46 -0400
Jeph Herrin <[email protected]> wrote:
how about
levelsof traded_model, local(traded)
levelsof new_model, local(new)
local onlytraded : list traded - new
local onlynew    : list new - traded
local others     : list onlynew | onlytraded
replace traded_model="others" if inlist(traded_model,"`others'")
replace new_model   ="others" if inlist(new_model,"`others'")
hth,
Jeph
On 7/12/2010 12:18 PM, Hobst wrote:
Hello

I have a huge dataset containing automotive brand-swiching data. I have a
variable called traded_model and another variable called new_model. in order to output a symmetric swiching matrix i need to identify all the expressions
that are eigther only in traded_brand or only in new_brand and replace
the
expression with "others". For example a model called "318d" exists in
traded_model but not in new_model, so all the "318d" should be replaced
by
"others".

Does anyone have an idea how i can programm that? I dont get it to work, and
doing it manually is close to impossible as there are more than 1000
different model names.

Any help is much appreciated, thank you.
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