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Re: st: Re: using categorical and continuous variables foreach loop for univaraite analysis
From
Michael Stewart <[email protected]>
To
statalist <[email protected]>
Subject
Re: st: Re: using categorical and continuous variables foreach loop for univaraite analysis
Date
Mon, 8 Jul 2013 23:35:25 -0400
Thanks Phil,it works
Mike
On Mon, Jul 8, 2013 at 11:06 PM, Phil Clayton
<[email protected]> wrote:
> 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/
--
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/