R help - Feb 2016 - Error on Text Mining for WordCloud

Dear Team, 

 

Please suggest on the below error while I am building a WordCloud on R for
one of user twitter account:

 

Error in UseMethod("TermDocumentMatrix", x) : 

  no applicable method for 'TermDocumentMatrix' applied to an object of
class "c('double', 'numeric')"

 

 

I have tried searching a lot on this issue however don't get much help. 

 

Used Tm package and corpus. Below are the expression below:

 

as.character(nwCorp1<- tm_map(corpuss1, removeNumbers))

as.character(nwCorp1<- tm_map(nwCorp1, removePunctuation))

as.character(nwCorp1<- tm_map(nwCorp1,PlainTextDocument))

as.character(nwCorp1<- tm_map(nwCorp1,
removeWords,stopwords("english")))

as.character(nwCorp1<- tm_map(nwCorp1,stripWhitespace))

as.character(nwCorp1)

 

dtm11<- DocumentTermMatrix(nwCorp1)

dtm11

dtm12<- as.matrix(dtm11)

dtm12

frequency<- colSums(dtm12)

 

 

Thanks, Shivi

Mb: 9891002021

 

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That looks to me like a rather basic misunderstanding of how R syntax works. You
might want to have a look at the documentation of as.character(), and read about
its return value. Then note that you are not assigning the return value to
anything.

To wit:

a <- 5
mode(a)

as.character(a)
mode(a) # simply calling as.character() does not change a!

a <- as.character(a)
mode(a)  # there we go.



B.

On Feb 12, 2016, at 2:33 PM, SHIVI BHATIA <shivi.bhatia at safexpress.com>
wrote:
> Dear Team, 
> 
> 
> 
> Please suggest on the below error while I am building a WordCloud on R for
> one of user twitter account:
> 
> 
> 
> Error in UseMethod("TermDocumentMatrix", x) : 
> 
>  no applicable method for 'TermDocumentMatrix' applied to an object
of
> class "c('double', 'numeric')"
> 
> 
> 
> 
> 
> I have tried searching a lot on this issue however don't get much help.
> 
> 
> 
> Used Tm package and corpus. Below are the expression below:
> 
> 
> 
> as.character(nwCorp1<- tm_map(corpuss1, removeNumbers))
> 
> as.character(nwCorp1<- tm_map(nwCorp1, removePunctuation))
> 
> as.character(nwCorp1<- tm_map(nwCorp1,PlainTextDocument))
> 
> as.character(nwCorp1<- tm_map(nwCorp1,
removeWords,stopwords("english")))
> 
> as.character(nwCorp1<- tm_map(nwCorp1,stripWhitespace))
> 
> as.character(nwCorp1)
> 
> 
> 
> dtm11<- DocumentTermMatrix(nwCorp1)
> 
> dtm11
> 
> dtm12<- as.matrix(dtm11)
> 
> dtm12
> 
> frequency<- colSums(dtm12)
> 
> 
> 
> 
> 
> Thanks, Shivi
> 
> Mb: 9891002021
> 
> 
> 
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No specific experience of the package you are using, but you have 
> as.character(nwCorp1)
This does nothing to nwCorp1; it just returns a character version of it to the
console. If it was not the right kind of object you can expect later commands to
throw errors.
Perhaps you meant
nwCorp1 <-  as.character(nwCorp1)   ?

S Ellison

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