[R] Cause of error message in cov function?

[Uwe Ligges]

Matthew Keller wrote:
> Hi all,
> 
> I have written a script in R that simulates genetically informative
> data - it is posted on my website and available to the public. This is
> my first time to write a script for use by others and am learning that
> it isn't as easy as it seems.
> 
> To the issue. My script runs fine on my machine and on a server I have
> access to, but a user has written me saying that it crashes the first
> time the function "cov" is called up. Below is her error message
> followed by the version of R she's using.
> 
> Can anyone help me out here? I can't recreate her error message. Does
> anyone know what this might have to do with? Is it a version issue
> (she's using R 2.1)? I'd appreciate any help!!

It may be a version issue, but hard to say since we do not know what 
effects.cur() is, not do we have any data to reproduce this.

Uwe Ligges


> Matt
> 
> 
> ERROR MESSAGE:
> 
> cov.varcomp <- cov(t(effects.cur[c("A","AA","D","F","S","E","AGE","AGE.by.A"),]*beta2))
> 
> there is an argument mssing.
> error message:
> 
> Error in mean((a - mean(a)) * (b - mean(b))) :
>        argument "b" is missing, with no default
> 
> 
> SPECIFICS OF HER MACHINE:
> 
>> memory.size()
> [1] 10985480
>> R.Version()
> $platform
> [1] "i386-pc-mingw32"
> $arch
> [1] "i386"
> $os
> [1] "mingw32"
> $system
> [1] "i386, mingw32"
> $status
> [1] ""
> $major
> [1] "2"
> $minor
> [1] "1.0"
> $year
> [1] "2005"
> $month
> [1] "04"
> $day
> [1] "18"
> $language
> [1] "R"
>> .Platform
> $OS.type
> [1] "windows"
> $file.sep
> [1] "/"
> $dynlib.ext
> [1] ".dll"
> $GUI
> [1] "Rgui"
> $endian
> [1] "little"
> $pkgType
> [1] "win.binary"
>