R help - Jan 2014 - Package TM & dataframes

Hi,

I am trying to use the package TM on a dataframe & get the following error:

complaints <- tm_map(complaints, tolower)
Error in UseMethod("tm_map", x) : 
  no applicable method for 'tm_map' applied to an object of class
"data.frame"

Tm doesn't work on dataframes?  My data frame consists of 1 text variable
containing customer complaints.  What do I have to change it to in order to
use the TM package for text mining?

Thanks ahead for your help/thoughts.



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On Jan 10, 2014, at 10:11 AM, ramoss wrote:
> Hi,
>
> I am trying to use the package TM on a dataframe & get the following  
> error:
>
> complaints <- tm_map(complaints, tolower)
> Error in UseMethod("tm_map", x) :
>  no applicable method for 'tm_map' applied to an object of class
> "data.frame"
>
> Tm doesn't work on dataframes?  My data frame consists of 1 text  
> variable
> containing customer complaints.  What do I have to change it to in  
> order to
> use the TM package for text mining?
>
> Thanks ahead for your help/thoughts.
As the Posting Guide says: Sometimes the appropriate answer is to  
direct you to the "manual". In this case ?tm::tm_map shows that the  
first argument is expected to be a corpus object.

--

David Winsemius, MD
Alameda, CA, USA