[R] A Few Suggestions to help out newbies

[david.whiting@ncl.ac.uk]

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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