[R] A Few Suggestions to help out newbies
david.whiting@ncl.ac.uk
david.whiting at ncl.ac.uk
Tue Apr 2 19:46:00 CEST 2002
On Tue, Apr 02, 2002 at 03:28:13AM -0800, Zed Shaw wrote:
...
> 2) A Series of Documents helping people translate from another package
> to R. For example, "R for SPSS People", "R for SAS People", etc.
>
The way I started to teach myself how to use and program in R was to
write some functions that either simulated STATA output or at least spat
out a reminder about how to get the output I needed. Here's one example:
stata.encode <- function(){
cat("*** STATA to R ***\nEncode character data as a numbered factor. Take a look at\nas.factor(). Here's a quick example:\n\nx <- as.factor(x)\n\nTo see the codes, use codes(x)\n")
}
I created a crude library called stata so I could then type:
library(stata)
stata.encode()
...which gave me...
*** STATA to R ***
Encode character data as a numbered factor. Take a look at
as.factor(). Here's a quick example:
x <- as.factor(x)
To see the codes, use codes(x)
Not elegant, but this approah helped me. The library is not anywhere
near ready for submitting to CRAN but I agree with the idea behind Zed's
suggestion that people migrating from one system to another think in the
old system to begin with.
Dave
--
Dave Whiting
Dar es Salaam, Tanzania
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