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24 results for “from:Greg Trafton”

calculating arc length using R?
Greg Trafton · Nov 13, 2003 · r-help

Hi, All. I have a function I want to know the plotted length of. is it possible to calculate the length of the function (e.g., arc length)? for example, if I want to know the length of the line...

temperature profiles on maps
Greg Trafton · Mar 18, 2003 · r-help

Hi, all. I'm looking for a way to generate temperature profiles and display them in different colors on different maps. I'm basically looking for a way to display simple meteorological graphs using different color sets within R. Is...

arrows or graphics below axes?
Greg Trafton · Apr 19, 2001 · r-help

Hi, All. I'm trying to make an arrow pointing to a particular value on the x axis. So, this is pretty much what I want: 20 210 220 230 240 250 260 ... ^ | | any ideas how to do this? I...

accessing a table
Greg Trafton · Jul 10, 2001 · r-help

Hi, all. I'm sure this is a simple question, but I'm having problems figuring it out myself... I have a table: > currenttable <- table(junk[-1],junk[-n]) > currenttable bar foo junk bar 2 2 0 foo 1 0...

printing out tables to a file using cat...
Greg Trafton · Oct 4, 2001 · r-help

>>>>> Uwe Ligges writes: >> how do I get the first format to show up in a file? > See ?write.table thanks! I tried write.table and it comes out pretty dang ugly... > write.table(table(showdistribution(nw.109.transitions, interruptions[1...

changing coordinate systems
Greg Trafton · Oct 28, 2004 · r-help

Hi, All. I am working with some eye-tracking data. I have a graph I generate in R with arbitrary plotting commands which I want to display. Then I want to plot the eyetracking data overlayed on it. The eye...

printing out tables to a file using cat...
Greg Trafton · Oct 4, 2001 · r-help

Hi, all. I'd like to print out a table to a file (I'm using cat(...,file="foobar")). the problem is, cat doesn't print out the headings for the table (making the table hard to interpret!). For example...

margin problems?
Greg Trafton · Apr 30, 2001 · r-help

hi, All. I'm using R 1.2.2 on a linux box. I have very long labels on my y axis, and when I try to print them out, they always come out clipped so I can't see...

returning quartiles of a list?
Greg Trafton · Jul 10, 2001 · r-help

>>>>> Thomas Lumley writes: > Ah. Look at the indexing vector >> ((n/2)+1):n > [1] 4.5 5.5 6.5 > You actually want n%/%2 or round(n/2) rather than n/2 to ensure that > it is an integer...

location of multi-line labels on barplots?
Greg Trafton · Apr 23, 2001 · r-help

Hi, All. I have a barplot I am making that has a 2 line label: names(GC) <- c("Read-Off", "Spatial\n Transformations", "Vis Changes", "Plans", "Abandon") and here, Spatial Transformations should be on 2 separate lines. However, when I...

logistic regression: differential importance of regressors
Greg Trafton · May 19, 2005 · r-help

Hi, All. I have a logistic regression model that I have run. The question came up: which of these regressors is more important than another? (I'm using Design) Logistic Regression Model lrm(formula = iconicgesture ~ ST + SSP + magnitude + Condition + Expertise...

plotting time
Greg Trafton · Jul 5, 2001 · r-help

Hi, all. I'm trying to create a plot that has a range of about an hour on the x axis, starting at about 10:15. I have a way I'm currently doing it but it's not working...

accessing a table
Greg Trafton · Jul 10, 2001 · r-help

>>>>> Jonathan Baron writes: >> From: Greg Trafton <trafton at itd.nrl.navy.mil> Hi, all. I'm sure >> this is a simple question, but I'm having problems figuring it out >> myself... I have a table: >> >> currenttable <- table(junk[-1],junk...

transitions in R
Greg Trafton · Jul 9, 2001 · r-help

Hi, All. I'd have a set of data in an array: process <- c( 5 , 7 , 4 , 1 , 4 , 1 , 4 , 1 , 4 , 4 , 1 , 5 , 4 , ...) and I'd like to know the number of transitions in this data...

returning quartiles of a list?
Greg Trafton · Jul 10, 2001 · r-help

Hi, all. I have a list: process <- c( 5 , 7 , 4 , 1 , 4 , 1) and I'd like to get each half (or each third or each quartile) of the list: process.firsthalf would be (5, 7, 4) and process...

PICT output?
Greg Trafton · Mar 30, 2001 · r-help

hi, all. I use R on a unix (linux) box and am quite happy with it. However, sometimes I need to create a graph that needs to be used with Microsoft Word or Powerpoint (ug). I can create a png...

calculating effect size for aov or lme
Greg Trafton · Aug 29, 2008 · r-help

Hi, All. I'd like to calculate effect sizes for aov or lme and seem to have a bit of problems. partial-eta squared would be my first choice, but I'm open to suggestions. Here is the aov version...

aov or lme effect size calculation
Greg Trafton · Sep 2, 2008 · r-help

(A repost of this request with a bit more detail) Hi, All. I'd like to calculate effect sizes for aov or lme and seem to have a bit of a problem. partial-eta squared would be my first choice...

returning quartiles of a list?
Greg Trafton · Jul 10, 2001 · r-help

>>>>> Thomas Lumley writes: >> Hi, all. I have a list: >> >> process <- c( 5 , 7 , 4 , 1 , 4 , 1) >> >> and I'd like to get each half (or each third or each quartile) of >> the list: >> > n<-length(process) > process[1:(n...

looping through lists...
Greg Trafton · Feb 8, 2002 · r-help

Hi, all. I have a whole group of lists with things like this: nw.1$cond (a string) nw.1$RL (a vector of 10 values) nw.1$IL (a vector of 10 values) and I have lots of these...

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