[R] Text dependent on a variable in a R function

[David Winsemius]

On May 2, 2010, at 10:10 AM, Nikhil Kaza wrote:

> say x is the variable.
>
> plot(..., title=paste(x, "whatever else"), ...) should work as well.
>
> same should work with file names as well.

Perhaps in an alternate universe it might, ...  but it doesn't in this  
one.  "title" is not the correct parameter for specifying titles, and  
if you change the parameter name to  the correct parameter name,  
"main", you are now giving it a vector with text-coercion of the  
number of values of x in x pasted to "whatever", since paste is  
vectorized.

Not what you want:

x <-c(-1, -0.75, -0.5, -0.25, 0, 0.25, 0.5, 0.75, 1)
plot(x, main=paste(x, "whatever"))

-- 
David

>
> Nikhil
>
>
>
> On May 1, 2010, at 9:56 PM, R K wrote:
>
>>
>> Hello,
>>
>> I was wondering if someone could tell me how I can make text  
>> dependent on a variable in a R function I have created.
>>
>> The function will create plots, thus I would like each plot to have  
>> a unique title based on the inputted variable as well as a unique  
>> file name when saved using the savePlot function.
>>
>> Thanks!
>> Rachel
>> 		 	   		
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>
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> and provide commented, minimal, self-contained, reproducible code.

David Winsemius, MD
West Hartford, CT