[R] A small nag

[Joshua Wiley]

Hi Chintanu,

Do you want the correlation of columns 3:10 of file with the y vector
or do you want a correlation matrix of all variables?

## correlation between cols 3:10 and y
sapply(file[1:47231, 3:10], FUN = cor, y = rep(LGD, 47231), method = "pearson")

## correlation matrix
cor(cbind(file[1:47231, 3:10], rep(LGD, 47231)), method = "pearson")

HTH,

Josh


On Sun, Aug 14, 2011 at 7:02 PM, Chintanu <chintanu at gmail.com> wrote:
> Hi,
>
> I am not sure how to fix the following error.
>
> LGD <-  c(11.6,   12.3,      15.8,      33.1,      43.5,      51.3,
> 67.3,      84.9)
>
> cor (x=(file [1:47231,3:10]), y= rep (LGD, 47231), method = "pearson")
>
> Error in cor(x = (file[1:47231, 3:10]), y = rep(LGD, 47231), method =
> "pearson") :
>
>  incompatible dimensions
>
>> sessionInfo()
>
> R version 2.13.0 (2011-04-13)
>
> Platform: i386-pc-mingw32/i386 (32-bit)
>
> locale:
>
> [1] LC_COLLATE=English_Australia.1252  LC_CTYPE=English_Australia.1252
>   LC_MONETARY=English_Australia.1252
> LC_NUMERIC=C                       LC_TIME=English_Australia.1252
>
> attached base packages:
>
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> loaded via a namespace (and not attached):
>
> [1] tools_2.13.0
>
> Thank you.
>
> Kind regards,
>
> Chintanu
>
>        [[alternative HTML version deleted]]
>
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>



-- 
Joshua Wiley
Ph.D. Student, Health Psychology
Programmer Analyst II, ATS Statistical Consulting Group
University of California, Los Angeles
https://joshuawiley.com/