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13 results for “from:Robert Schick”

polymars package
Robert Schick · Nov 26, 2002 · r-help

Does the polymars library exist anymore? I see reference to it at http://rweb.stat.umn.edu/R/doc/html/packages.html, but not on CRAN (looked in contrib and contrib/Old). -- Rob Schick Ecologist NOAA Fisheries Santa Cruz Lab...

refined reshape question
Robert Schick · Oct 25, 2002 · r-help

I tried something else, which gets me close: > klam.wide <- reshape(klam.merge, idvar="stream",timevar="lulc",direction="wide",drop=c("x","sumlength")) If I don't drop the "sumlength" variable, I get sumlength.0 pct.lgth.0 sumlength.11...

subset with NA
Robert Schick · Feb 19, 2003 · r-help

Easy question that I can't find an answer for. I'm trying to subset a data frame and want to exclude the positive values, i.e. I want the NA values. My data: > summary(temp$tuna) Min. 1st Qu...

Installing add on packages
Robert Schick · May 31, 2000 · r-help

Hi- I'm a complete newbie trying to install R and the 'tree' package on a linux box. I installed R successfully using an RPM for Redhat 6.2. I downloaded the tree*.gz file, ran tar, the fired up...

Another Mozilla issue
Robert Schick · Nov 26, 2002 · r-help

This isn't an R issue per se, but given the recent issues with Mozilla and help.search(), I figured I'd float it. I use mozilla on a WIN2000 box. I was using 1.0 and the help.search...

color coding a legend
Robert Schick · Jun 10, 2003 · r-help

I'm using R 1.6.2 on a Windows 2000 machine. I've plotted the results of an MDS run labeled by a numerical ID, and color coded by a group code: plot(cv.mds.spr$points, type="n...

Conditioned file Import?
Robert Schick · Jan 27, 2003 · r-help

I'm using R 1.6.2 on Windows 2000. I have two similar sets of files in two different directories. One contains species presence data and environmental measurements; the other contains species absence data and environmental measurements for the...

reshape: duplicate rows to multiple cols
Robert Schick · Oct 25, 2002 · r-help

I have a dataframe that I'm trying to reshape, and need advice. My data: > klam.merge[200:225,] stream lulc x sumlength pct.lgth 200 1223030419685 92 0.25000000 9.89 2.52780586 201 1223030419686 23 0.00274154 4...

Newbie Time Series Questions
Robert Schick · Oct 17, 2002 · r-help

I have a data set of monthly river flows from 1960-2000, which are similar in structure to the nottem data: > klam.flow Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1961 1461 1716 2524 1773...

Scaling part of a data frame
Robert Schick · Nov 14, 2002 · r-help

I have a 30 x 27 data frame, which I'm trying to scale and transform. Only I want to scale certain all variables except one (the dependent, which I want to log+1 transform). I can use split() and...

using [i] to plot & label all vector elements
Robert Schick · Jul 2, 2003 · r-help

I'm using 1.6.2 on a win 2k box. (I know I'm due for an upgrade.) I've used brute force to label a series of vectors, and I'm wondering if there's a better way...

color coding a legend - solved?
Robert Schick · Jun 10, 2003 · r-help

I did the following, and had it plot as needed: >legend(3.25, -2.5, leg.txt, pch=15, col= levels(as.factor(codes(cv.wshed.grp)))) Problem was in my (lack of) understanding of codes() But my second question...

Newbie Time Series Questions
Robert Schick · Oct 17, 2002 · r-help

Thanks - That did the trick. Curious why the following doesn't quite work: klam.ts <- ts(data=klam.flow, start=c(1960,10), frequency=12) The above doesn't make the vector. Rob Achim Zeileis wrote: > > Robert Schick wrote: > > > > I...

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