Dear all,

I wanted to make a two-way-table of two variables with a counting
variable stored in another column of a dataframe. In version 1.9.1, the
behavior is as expected as shown in the simplified example code.

> sex <- rep(c("F", "M"), 5)
> income <-  c(rep("low", 5), rep("high", 5))
> count <- 1:10
> mydf <- as.data.frame(cbind(sex, income, count))
> mydf$count = as.numeric(as.character(mydf$count))
> tapply(mydf$count, list(mydf$sex, mydf$income), FUN=sum)
  high low
F   16   9
M   24   6
> version
         _              
platform i386-pc-mingw32
arch     i386           
os       mingw32        
system   i386, mingw32  
status                  
major    1              
minor    9.1            
year     2004           
month    06             
day      21             
language R              
> 

In version 2.0.1, however, I get the following output:

> sex <- rep(c("F", "M"), 5)
> income <-  c(rep("low", 5), rep("high", 5))
> count <- 1:10
> mydf <- as.data.frame(cbind(sex, income, count))
> mydf$count = as.numeric(as.character(mydf$count))
> tapply(mydf$count, list(mydf$sex, mydf$income), FUN=sum)
Error in get(x, envir, mode, inherits) : variable "FUN" was not found
> version
         _              
platform i386-pc-mingw32
arch     i386           
os       mingw32        
system   i386, mingw32  
status                  
major    2              
minor    0.1            
year     2004           
month    11             
day      15             
language R              
> 

Was this change in behavior intended with the changes in tapply from
R1.9.1 to R2.0.1?
Is the R-help-list appropriate or rather R-Devel?

Thanks,
Roland



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