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Re: st: Reshape with prefix using a varlist
From
Richard Murphy <[email protected]>
To
[email protected]
Subject
Re: st: Reshape with prefix using a varlist
Date
Mon, 14 Mar 2011 17:45:18 -0700
Hi Nick ,
I appreciate that it looks foolish making a wide dataset even wider,
but I don't think its that bad in this case.
I have university by degree level by year data. For each of these i
have the number of students coming from 244 different countries, along
with total EU and total OS.
year instit LEVEL os uk eu country1-country244
1994 1 ug 12 146 0
1994 1 pgr 3 335 3
1994 1 pgt 1 101 0
1995 1 ug 7 119 0
1995 1 pgr 4 300 9
1995 1 pgt 6 59 17
There are 3 levels of degree, which i would like to make wide. So that
I would have a panel dataset for universities over time. The reason
why i want to do this is that I want to calculate the cross
subsidisation that occurs between the degree levels, and for this I
need the totals for each within an observation.
I need to do this for all the countries as i'm using a Card
Shift-Share approach as an instrument for changes in overseas numbers,
which i would like to define in various different ways throughout the
analysis (EU, NonEU, Asia, ect).
And i would like the prefix, so that the variable names fit into my
pre existing do files for the analysis.
Best regards
Richard
On 14 March 2011 17:24, Nick Cox <[email protected]> wrote:
> Please tell us directly more about your dataset and why you think
> -reshape wide- is a good idea. From what you say it just make most
> analyses more difficult. Also, how many variables will you end up
> with?
>
> Nick
>
> On Tue, Mar 15, 2011 at 12:13 AM, Richard Murphy
> <[email protected]> wrote:
>> Hi all,
>> I want to reshape long data to wide, putting the 'j' string variable
>> at the begging of the stub.
>> This would be fine if I have a limited number of variables as i can
>> just use the @ function.
>> reshape wide @var1 @var2 @var3 @var4, i(instit year) j(LEVEL) string
>>
>> But this does not work if i use the variable list functionality of
>> reshape. I would like to know if their is an easier way of doing this,
>> rather than typing in all 244 variables preceded by @.
>> reshape wide @var1-@var244, i(instit year) j(LEVEL) string
>>
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