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Re: st: Re: using categorical and continuous variables foreach loop for univaraite analysis
From
Phil Clayton <[email protected]>
To
[email protected]
Subject
Re: st: Re: using categorical and continuous variables foreach loop for univaraite analysis
Date
Tue, 9 Jul 2013 13:06:01 +1000
Like I said, you need to change your -foreach- syntax. Not:
foreach x of varlist
but:
foreach x in
Phil
On 09/07/2013, at 12:51 PM, Michael Stewart <[email protected]> wrote:
> Hi,
>
> I apologize, I should have told you that I have tried the solution
> suggested by Phil prior to posting the question and I get an error
>
> ************************************************************
> foreach x of varlist i.cat1 i.cat2 con1 con2 {
> logit outcome `x'
> }
>
> factor variables not allowed
> r(101);
>
> end of do-file
> ************************************************************
>
> Regarding Dimitri's solution, I have unequal number of categorical and
> continuous variables.hence, will not be able to use the solution.
>
>
> Thank you again for your time and consideration
>
> Mike
>
> On Mon, Jul 8, 2013 at 7:47 PM, Phil Clayton
> <[email protected]> wrote:
>> One simple solution is a slight tweak to your -foreach- syntax:
>>
>> foreach x in i.cat1 i.cat2 i.cat3 i.cat4 con1 con2 con3 con4 {
>> logit outcome `x'
>> }
>>
>> Phil
>>
>> On 09/07/2013, at 8:51 AM, Michael Stewart <[email protected]> wrote:
>>
>>> Hello all,
>>>
>>> In my research project, I have a number of categorical predictors(cat1
>>> cat2 cat3 cat4 ) and continuous predictors(con1 con2 con3 con4) and
>>> during initial uni-variate analysis, I am using two step process to
>>> evaluate for statistical significance.My code is a follows
>>>
>>> I use stata 12
>>>
>>> *********************MY CODE ********************
>>> foreach x of varlist cat1 cat2 cat3 cat4{
>>> logit outcome i.`x'
>>> }
>>>
>>> foreach x of varlist con1 con2 con3 con4{
>>> logit outcome `x'
>>> }
>>> ********************************************************
>>> Question:
>>>
>>> Is it possible to achieve this is one step i.e., use continuous and
>>> predictors as a single varlist but perform logistic regression still
>>> respecting the fact that some are categorical variables and some are
>>> continuous variables
>>>
>>> --
>>> Thank you in advance for your time and consideration,
>>> Yours Sincerely,
>>> Mike.
>>> *
>>> * For searches and help try:
>>> * http://www.stata.com/help.cgi?search
>>> * http://www.stata.com/support/faqs/resources/statalist-faq/
>>> * http://www.ats.ucla.edu/stat/stata/
>>
>>
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/faqs/resources/statalist-faq/
>> * http://www.ats.ucla.edu/stat/stata/
>
>
>
> --
> Thank you ,
> Yours Sincerely,
> Mike.
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/