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Re: st: Useful labelling of dummy variables following logit


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Useful labelling of dummy variables following logit
Date   Wed, 24 Aug 2011 14:06:15 +0100

I am not thinking of anything very original, just plotting estimates
and confidence intervals horizontally with descriptive text on each
line.

See for example -eclplot- (Roger Newson, -findit eclplot- for code and
write-ups) or

SJ-8-2  gr0034  . . . . . . . . . .  Speaking Stata: Between tables and graphs
        (help labmask, seqvar if installed) . . . . . . . . . . . .  N. J. Cox
        Q2/08   SJ 8(2):269--289
        outlines techniques for producing table-like graphs

Nick

On Wed, Aug 24, 2011 at 1:56 PM, Tim Evans <Tim.Evans@wmciu.nhs.uk> wrote:
> Thanks again for your input.
>
> Nick, in your last post, are you suggesting an alternative way of presenting things as I'm not sure I follow what you mean by:
>
> ' I'd much prefer to work at a graphical display of odds
> ratios and confidence limits with variable labels as horizontal text'
>
> If there is another better (in your opinion) way of presenting what I have, then I'd be happy to know.
>
> Best wishes
>
> Tim
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Cox
> Sent: 24 August 2011 13:28
> To: statalist@hsphsun2.harvard.edu
> Subject: Re: st: Useful labelling of dummy variables following logit
>
> Although it's a fair way from the question, I will add that if I had
> your problem I'd much prefer to work at a graphical display of odds
> ratios and confidence limits with variable labels as horizontal text.
>
> Nick
>
> On Wed, Aug 24, 2011 at 1:16 PM, Maarten Buis <maartenlbuis@gmail.com> wrote:
>> On Wed, Aug 24, 2011 at 1:22 PM, Tim Evans wrote:
>>> Thanks for your help. I guess what I'm after is the labelling of the dummy variables when printed in the output table. I couldn't get dummieslab to work very well on the example using the auto data - I got this error message:
>>>
>>> sysuse auto
>>> (1978 Automobile Data)
>>> label define newfor 0 "Domestic car" 1 "Foreign (European or Japanese) car"
>>> label values foreign newfor
>>> dummieslab foreign
>>> dummieslab foreign, word(1)
>>> dummieslab foreign, word(-1)
>>>
>>> implied variable names contain duplicates
>>> r(498);
>>
>> That makes sense: In the last the last call to -dummieslab, you are
>> asking the names of the variables to come from the last word of each
>> value label. In this case that is for each category the word "car".
>> You cannot create two variables with the same name, so it should exit
>> with an error, which it does.
>>
>>> Even after this works, I'm not sure this would follow through to the table.
>>
>> In the output table you see the names of the variables, as the names
>> of the variables now somewhat correspond to the value labels, you now
>> get closer to what you want. It may still look horrible because
>> variable names may not contain characters like "(" or " " or when the
>> names are very long. If that is too big a problem for you, than there
>> is no other option than to create and name the dummy variables
>> yourself. That way you can fine tune the names to represent the
>> balance between clarity and length of the name.
>>
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