[R] Create Variable names dynamically

From: Noah Silverman <noah_at_smartmediacorp.com>
Date: Thu, 31 Mar 2011 13:42:54 -0700


Hi,

I want to create variable names from within my code, but can't find any documentation for this.

An example is probably the best way to illustrate. I am reading data in from a file, doing a bunch of stuff, and want to generate variables with my output. (I could make a "list of lists" and name all the elements, but I really want separate variables.)

#################

#This is just a dummy example, please excuse any shortcuts...

data <- read.table("file", ....)
animals <- (data[,animal])
animals
> "cat", "dog", "horse" # Not known what these are before I read the data file

# do a bunch of stuff

mean_cat <- abc
var_cat <- dfd
mean_dog <- 123
var_dog <- 453
etc..
##############

I thought of trying to use the paste() function to create the variable name, but that doesn't work: for( animal in animals){

        paste("mean", animal "_") <- 123
}

Any ideas???

Thanks

--
Noah Silverman

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Received on Thu 31 Mar 2011 - 20:45:49 GMT

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