On 27.12.2012 13:04, Heramb Gadgil wrote:
Agreed.
But the initial question was to get the output with paste function. That is
the reason why I went for eval.
Please let me know in case I am going the wrong way
You solution is valid to answer the question. But the original poster
probably does not know there is a better way than pasting strings
together. And we should point him to the best solution for handling his
problem, not the suboptimal one he was looking for initially.
Best,
Uwe Ligges
On Thu, Dec 27, 2012 at 4:34 PM, Jessica Streicher <j.streic...@micromata.de
wrote:
Well for one, if ever someone looks at your code, cvtest[[lambda.rule]] is
much easier to read and understand than
eval(parse(text=paste0("cvtest$",lambda.rule)))
On 27.12.2012, at 11:44, Heramb Gadgil wrote:
I am not sure why "Never ever!"
Can you please elaborate. What are the negatives about the method
Warm Regards,
Heramb M. Gadgil
On Thu, Dec 27, 2012 at 3:50 PM, Uwe Ligges <
lig...@statistik.tu-dortmund.de
wrote:
On 27.12.2012 08:09, Heramb Gadgil wrote:
eval(parse(text=paste0("**cvtest$",lambda.rule)))
No, never ever!
There is an R idiom made for it:
cvtest[[lambda.rule]]
Uwe Ligges
I hope this works.
On Wed, Dec 19, 2012 at 12:57 AM, Thomas Stewart
<tgs.public.m...@gmail.com>**wrote:
Soyeon-
A possible solution:
get(lambda.rule,envir=**list2env(cvtest))
On Tue, Dec 18, 2012 at 12:34 PM, Soyeon Kim <yunni0...@gmail.com>
wrote:
Dear my R friends,
I want to get a number from a list using paste function.
In my example,
lambda.rule <- "lambda.1se"
cvtest is a list (result from cv.glmnet)
and
cvtest$lambda.1se
[1] 1.308973
I want to call the value using paste function.
I used get function but there was an error.
test <- get(paste("cvtest$",lambda.**rule, sep=""))
Error in get(paste("cvtest$", lambda.rule, sep = "")) :
object 'cvtest$lambda.1se' not found
Do you guys know how to solve this issue?
Thank you so much in advance and merry Christmas!
Soyeon
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