R help - Apr 2009 - Learning development concepts in R for newbie users

Hi R users,

I apologize for a seemingly trivial question, but I felt this forum would be
the best place to seek advice.

I have been an R user for a year now, but I am limited to using R and its
various contributed packages. I strongly feel that users of a free and open
source software tool must eventually provide development expertise.

I am aware of the extensive documentation available on the R project page
regarding Internals, Language definitions and the like, but I would like to
find tutorials on R development, much the same way as there are tutorials
for the use of R in statistics and data analysis.

Information on Book titles, online sources, etc that you maybe aware of
which could allow a user of R to also develop R (packages, improvise on
functions, etc) would be much appreciated.

For example, I have used the adf.test in package 'tseries' but the test
assumes a certain form the the time series process. There are 3 forms in
literature, and the other 2 are not used. I would like to modify the
adf.test to incorporate the other two forms as well.

Thanks
Harsh Singhal

	[[alternative HTML version deleted]]

Hi:  I  have  had a similar issue so below are?  ways that I deal with
   that.? ?  i don't think there are manuals/ documentation for
   becoming more of a developer ( someone can correct me if I'm wrong and
I'd
   be happy to be wrong )?  but there are other?  ways:
   1) Staying on this list as much as possible and watching what people send as
   solutions and trying to solve them yourself
   2) printing out package source code. For adf.test, look at the source and
   then try to figure out from that what you want to do.
   Most of the code from packages is written beautifully and therefore it's
   often not that difficult to understand.
   3) Reading the?  R Language Defintion manual. I found that about 6 months
   ago and it was really interesting and helpful.
   4) Asking the R guRus questions without overwhelming/annoying them. If you
   stay on this list, you will fquickly figure out who they are.
   ? ?  There are many and some know everything and others are experts in
   specific areas.?  They are?  quite generous with
   ? ?  their expertise and time. But, you should keep in mind that they help
   for free and it's not their job so try to minimize your
   ? ?  bothers.
   ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
   ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
   ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
   ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?  Good luck.

   On Apr 1, 2009, Harsh <singhalblr at gmail.com> wrote:

     Hi R users,
     I apologize for a seemingly trivial question, but I felt this forum would
     be
     the best place to seek advice.
     I have been an R user for a year now, but I am limited to using R and its
     various contributed packages. I strongly feel that users of a free and
     open
     source software tool must eventually provide development expertise.
     I am aware of the extensive documentation available on the R project page
     regarding Internals, Language definitions and the like, but I would like
     to
     find tutorials on R development, much the same way as there are tutorials
     for the use of R in statistics and data analysis.
     Information on Book titles, online sources, etc that you maybe aware of
     which could allow a user of R to also develop R (packages, improvise on
     functions, etc) would be much appreciated.
     For example, I have used the adf.test in package 'tseries' but the
test
     assumes a certain form the the time series process. There are 3 forms in
     literature, and the other 2 are not used. I would like to modify the
     adf.test to incorporate the other two forms as well.
     Thanks
     Harsh Singhal
     [[alternative HTML version deleted]]
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References

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