[R] generating factors from the edit function

[Erin Hodgess]

Here is a little function that I put together:

> fact1
function(x) {
n <- ncol(x)
for(i in 1:n) {
if(mode(x[,i])=="character")x[,i] <- factor(x[,i])
}
return(x)
}
>

It does the trick.  I'm sure that there are better ways, but this seems ok.

Thank you!!!

Sincerely,
Erin


On Fri, Mar 4, 2011 at 10:42 PM, Ista Zahn <izahn at psych.rochester.edu> wrote:
> Hi Erin,
> I would set up the data.frame the way you want it before calling
> fix(). Something like
>
> test2df <- data.frame(v1=numeric(), v2=factor())
> test2df <- fix(test2df)
>
> Best,
> Ista
>
> On Sat, Mar 5, 2011 at 4:34 AM, Erin Hodgess <erinm.hodgess at gmail.com> wrote:
>> Dear R People:
>>
>> If I use the fix or edit function for a new data frame, I would like
>> to have my character data as factors.
>>
>> Is there a "built in" way to do this, please?
>>
>> Here is what I did:
>>
>>> test2.df <- data.frame()
>>> test2.df <- fix(test2.df,factor.mode="character")
>>> str(test2.df)
>> 'data.frame':   5 obs. of  2 variables:
>>  $ var1: num  1 2 3 4 5
>>  $ var2: chr  "a" "a" "g" "g" ...
>>>
>> The character data is simply that.  I would like create factors when I
>> enter character data.
>>
>> Thank you!
>>
>> Sincerely,
>>
>> Erin
>>
>>
>> --
>> Erin Hodgess
>> Associate Professor
>> Department of Computer and Mathematical Sciences
>> University of Houston - Downtown
>> mailto: erinm.hodgess at gmail.com
>>
>> ______________________________________________
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>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
>
> --
> Ista Zahn
> Graduate student
> University of Rochester
> Department of Clinical and Social Psychology
> http://yourpsyche.org
>



-- 
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com