010 20:56:26 -0500
> CC: r-help@r-project.org
> Subject: Re: [R] variable substitution in for loops
>
>
> On Feb 24, 2010, at 8:18 PM, Jon Erik Ween wrote:
>
> > Friends
> >
> > I can't quite find a direct answer to this question from the lists,
>
Friends
Seems I've run into another snag. More of the nitty-gritty r-details I don't
understand.
So, as I mentioned below, dataset[[var_sub]] seems to be understood well by the
functions I previously used and I was able to run my loop successfully with the
[[var_sub]] as a variable-substitutio
On 01.03.2010 14:27, Jon Erik Ween wrote:
Friends
First, thanks to all for great feed-back. Open-source rocks! I have a workable
solution to my question, attached below in case it might be of any use to
anyone. I'm sure there are more elegant ways of doing this, so any further
feedback is w
Friends
First, thanks to all for great feed-back. Open-source rocks! I have a workable
solution to my question, attached below in case it might be of any use to
anyone. I'm sure there are more elegant ways of doing this, so any further
feedback is welcome!
Things I've learned (for other noobs
Jon Erik,
I don't know where you get 'varslist', but if it's from a text file,
then why not scan() it into a *vector* instead of using (I assume)
read.table() to create a data.frame. You'll save yourself much grief.
-Peter Ehlers
On 2010-02-24 20:19, David Winsemius wrote:
On Feb 24, 2010, a
On Feb 24, 2010, at 9:18 PM, Jon Erik Ween wrote:
David
Thanks for your suggestions. "Reproducible examples", my datasets
are too
big so I'm not sure what you would want to see.
I _wanted_ to see a datasset that had maybe 10 variables and 20 rows
and a stripped down varslist that had m
David
Thanks for your suggestions. "Reproducible examples", my datasets are too
big so I'm not sure what you would want to see. Anyway, does this help:
dataset:
Perf_Index Age risk_score gender hight IQ ...
12 78 10 m 6 110 ...
10 77 9 f 6 97 ...
5 64 f 13 5 120 ...
...
varslist:
Perf_Index Ag
On Feb 24, 2010, at 8:18 PM, Jon Erik Ween wrote:
Friends
I can't quite find a direct answer to this question from the lists,
so here goes:
I have several dataframes, 200+ columns 2000+ rows. I wish to script
some operations to perform on some of the variables (columns) in the
data fra
Friends
I can't quite find a direct answer to this question from the lists, so here
goes:
I have several dataframes, 200+ columns 2000+ rows. I wish to script some
operations to perform on some of the variables (columns) in the data frames not
knowing what the column number is, hence have to r
Hello,
Jon Erik Ween wrote:
Hi
I would like to write a script that reads a list of variable names. These variable names
are some of the column headers in a data.frame. Then I want do a for-loop to execute
various operations on the specified variables in the data.frame, but can't figure out ho
Hi
I would like to write a script that reads a list of variable names. These
variable names are some of the column headers in a data.frame. Then I want do a
for-loop to execute various operations on the specified variables in the
data.frame, but can't figure out how to do the necessary variable
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