I don't think I've seen this one discussed before .. consider:
========= Reproduce me ===========
library(IRanges)
df1 <- data.frame(a=rnorm(10), b=head(letters, 10))
df2 <- transform(df1, b=factor(b))
df3 <- transform(df1, b=factor(b, sample(b), ordered=TRUE))
DF1 <- DataFrame(df1)
DF2 <- DataFrame(df2)
DF3 <- DataFrame(df3)
## Now let's take a look at them
DF1 ## looks purty
DF2 ## looks nice
DF3 ## woops!
DataFrame with 10 rows and 2 columns
Error in matrix(unlist(lapply(object, function(x) paste("<", class(x), :
length of 'dimnames' [2] not equal to array extent
===================================
Here it only looks like it's messing w/ the `show` method, but it will
bite you in other places where you expect DataFrame's to function "as
normal."
I'll take a deeper look at this after I get through a deadline for
next week, but if someone has some time between now and then ...
Relevant info:
R version 2.15.2 Patched (2012-11-12 r61105)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
....
other attached packages:
[1] IRanges_1.16.6 BiocGenerics_0.4.0 devtools_1.1
-steve
--
Steve Lianoglou
Graduate Student: Computational Systems Biology
| Memorial Sloan-Kettering Cancer Center
| Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact
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