Hello,

This function doesn't exist in any package. I found it using a web search
engine (estimated time, 30sec):
http://stackoverflow.com/questions/7971513/using-one-data-frame-to-update-another

Regards,
Pascal



2013/9/19 Alecia M Moser <amoser1@binghamton.edu>

> Hello -
>
> I have read about a function, replace.df(), that is available in base R. It
> seems ideal since it would allow me to replace specific columns in one data
> frame with columns in another data frame, while keeping all other columns
> intact. The problem is that replace.df() does not seem to exist as a
> function. Can anyone confirm this or provide the library in which it is
> located? If it does not exist, is there another way to perform this column
> specific replacement?
>
> practice <- read.csv("data.csv", header=T)
> practice1 <- aggregate(practice[, c(8,9,10,11,12,27,28)],
> by=list(practice$codenumber), FUN=function(x) sub("(.*):", "\\1.", x))
> practice2 <- replace.df(practice, practice1, by=c("codenumber"),
> cols=c(8,9,10,11,12,27,28))
> >>Error: could not find function "replace.df"
>
> Thank you.
>
> Alecia
>
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>
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>



-- 
Pascal Oettli
Project Scientist
JAMSTEC
Yokohama, Japan

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