[R] character vector to text with returns

[David Winsemius]

On Aug 30, 2011, at 1:09 PM, Ben qant wrote:

> Hello,
>
> (Sorry if this is a dup post...)
>
> I need to clarify, Henrique's suggestion worked great for getting  
> the text
> that I needed via cat(), but I haven't sorted out how to get cat()  
> like
> output into a variable so I can pass it into the message body  
> variable I am
> using.

cat() is not the right function to get text assgned to an object. It's  
entire purpose is to have a side-effect and _not_ return anything into  
R's workspace. Why are you not assigning the result of that paste  
operation to the variable?


>
> Here is what I mean:
> x
> [1] "a" "b" "c" "d"
> paste(x,collapse='\n')
> [1] "a\nb\nc\nd"
> y = paste(x,collapse='\n')
> cat(y)
> a
> b
> c
> d
>
> This is the problem with 'y' has the msg body:
>
> paste("msg = MIMEText('",y,"')",sep="")
> [1] "msg = MIMEText('a\nb\nc\nd')"
>
> This is what I am after (I think!):
>
> paste("msg = MIMEText('",y,"')",sep="")
> [1] "msg = MIMEText('a
> b
> c
> d')"
>
>
> Here is how I am actually using it (with sensitive items generalized):
>
> require(rJython)
> rJython <- rJython()
> rJython$exec( "import smtplib" )
> rJython$exec("from email.MIMEText import MIMEText")
> rJython$exec("import email.utils")
>
> mail<-c(
> #Email settings
> "fromaddr = 'ccquant at gmail.com'",
> "toaddrs  = 'usernameX at somethinghere.com'"
> - Show quoted text -
> jython.exec(rJython,mail)  # and here is the error I get.
>
> Error in ls(envir = envir, all.names = private) :
>  invalid 'envir' argument
>
>
> Just in case someone asks, I can do this:
>
> y = "a test"
>
> ...and the above email sends fine with 'a test' as the msg body.
>
> Any ideas?
>
> PS - I received lots of suggestions. Thank you very much for your
> effort/input.
>
> Ben
>
>
> On Mon, Aug 29, 2011 at 6:01 PM, Henrique Dallazuanna <wwwhsd at gmail.com 
> >wrote:
>
>> Try:
>>
>> paste(c("a", "b", "c"), collapse = "\n")
>>
>> On Mon, Aug 29, 2011 at 8:56 PM, Ben qant <ccquant at gmail.com> wrote:
>>
>>> Hello,
>>>
>>> Does anyone know how to convert this:
>>>> msg
>>> [1] "a"
>>> [2] "b"
>>> [3] "c"
>>>
>>>
>>> To:
>>>
>>>> msg
>>> "a
>>> b
>>> c"
>>>
>>> In other words, I need to convert a character vector to a single  
>>> string
>>> with
>>> carriage returns for each row.
>>>
>>> Functionally, I'm attempting to send an email of a character  
>>> vector in a
>>> way
>>> that is readable in the email body. I can only input one string as  
>>> the
>>> message body parameter. I'm using rJython to send the email  
>>> because I need
>>> authentication.
>>>
>>> Thanks!
>>>
>>>       [[alternative HTML version deleted]]
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> 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.
>>>
>>
>>
>>
>> --
>> Henrique Dallazuanna
>> Curitiba-Paraná-Brasil
>> 25° 25' 40" S 49° 16' 22" O
>>
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> 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.

David Winsemius, MD
West Hartford, CT