hi,
i would like to do the following:
library(IRanges)
do.call(pmax, data.frame(x=1:10, y=2:11))
[1] 2 3 4 5 6 7 8 9 10 11
with 'DataFrame' objects:
do.call(pmax, DataFrame(x=1:10, y=2:11))
Error in do.call(pmax, DataFrame(x = 1:10, y = 2:11)) :
second argument must be a list
concretely with the metadata columns of GRanges objects, which are
DataFrame objects.
currently i can do it by coercing back to DataFrame:
do.call(pmax, as.data.frame(DataFrame(x=1:10, y=2:11)))
[1] 2 3 4 5 6 7 8 9 10 11
but if the GRanges object is large this becomes a significant overhead
in cpu and memory which i guess could be avoided by a pmax method
working on DataFrame objects directly.
thanks!!
robert.
ps: sessionInfo()
R Under development (unstable) (2013-10-20 r64082)
Platform: x86_64-unknown-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF8 LC_COLLATE=en_US.UTF8
[5] LC_MONETARY=en_US.UTF8 LC_MESSAGES=en_US.UTF8
[7] LC_PAPER=en_US.UTF8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF8 LC_IDENTIFICATION=C
attached base packages:
[1] parallel stats graphics grDevices utils datasets methods
[8] base
other attached packages:
[1] IRanges_1.21.10 BiocGenerics_0.9.0 vimcom_0.9-91
setwidth_1.0-3
[5] colorout_1.0-1
loaded via a namespace (and not attached):
[1] stats4_3.1.0 tools_3.1.0
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