Displaying 20 results from an estimated 10000 matches similar to: "Conditioned file Import?"
2003 Jun 10
1
color coding a legend
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$points, type="n", main="Non-Metric Multidimensional
Scaling of SprRun CV Watersheds")
text(cv.mds.spr$points, labels = as.character(cv.wshed.id.spr), col =
codes(cv.wshed.grp), cex=.75)
Question is, how do I
2003 Jul 02
2
using [i] to plot & label all vector elements
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 to do this. I wanted to create a biplot of the 2nd
& 3rd PCs, and did this:
test <- edit(loadings(cv.prc.spr))
test.1 <- test[,1]
test.2 <- test[,2]
test.3 <- test[,3]
x0 <- 0
y0 <- 0
i <-
2003 Feb 20
2
subset with NA
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. Median Mean 3rd Qu. Max. NA's
1 2 3 3 4 5 1211
Querying for
subset(temp, tuna %in% "NA", select....
subset(temp, tuna == NA,
2002 Nov 26
1
Another Mozilla issue
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() wasn't working as has been
discussed over the past few days. Yesterday I upgraded to 1.1, and the
javascript help still does not work. (I checked and it is enabled.)
Another problem I noticed this morning
2002 Nov 27
1
polymars package
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
110 Shaffer Road
Santa Cruz, CA 95060
Phone: 831.420.3960
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r-help mailing list -- Read
2002 Oct 25
1
reshape: duplicate rows to multiple cols
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 4.73 0.05796068
202 1223030419686 41 0.75009917 4.73 15.85833341
203 1223030419686 42 2.65000000 4.73 56.02536998
204
2002 Oct 17
4
Newbie Time Series Questions
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 1906 2005 1756 1575 1387 983 1094 1382
1962 1907 2253 1985 1907 1769 1676 2634 1386 929 766 968 1309
...
I tried plotting with
> ts.plot(klam.flow)
Which quickly led me to
2002 Nov 15
1
Scaling part of a data frame
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 then scale() and
log1p(), but I'm wondering if I can do this in one call.
I tried apply(), but I could only get the whole data frame, not a part
of it:
> test <- apply(chin.sub, 2, log1p)
2012 Oct 10
1
glmmPQL and spatial correlation
Hi all,
I'm running into some computer issues when trying to run a binomial model
for spatially correlated data using glmmPQL and was wondering if anyone
could help me out.
My whole dataset consists of about 300,000 points for which I have a suite
of environmental variables (I'm trying to come up with a habitat model for
a species of seal, using real (presence) and simulated dives
2009 Sep 30
2
R package for visualizing/analyzing accelerometry data?
Hello All -
Any recommendations or suggestions for neat ways to visualize data
taken from a 3-axis accelerometer? My study species is aquatic, so I
would be interested in movement in the 3 dimensions in addition to
being able to incorporate the time series as well. Is there a package
in R that might be useful for this?
Thank you in advance,
Jen
~~~~~~~~~~~~~~~~~~~~~
Jennifer Maresh, PhD
2012 Oct 01
0
glmmPQL and spatial autocorrelation
Hi all,
I am analyzing data on habitat utilization of seals in the Southern Ocean.
My data show spatial autocorrelation, which I'm interested in incorporating
into my model. I am trying to model the presence of dives (versus simulated
pseudo-absences) using a binomial generalized binomial model (glmmPQL),
since I can incorporate the autocorrelation structure to the model using
that package.
2005 May 02
2
Nonparametric Tukey-type multiple comparisons "Nemenyi" test
I am trying to do a Nonparametric Tukey-type multiple comparison
post-hoc test to determine which groups are significantly different. I
have read the dialogue on this topic from the R-help, and am still not
clear why no statistical packages include this test as an option? Is it
not an appropriate test to conduct on non-normally distributed data? Is
the only option to calculate it by hand
2006 Apr 20
1
Randomly selecting one row for each factor level
I don't use R much, and I have been unable to figure out how to get the
subset of my data frame that I would like.
For example, if this were my data frame:
> dfr <- data.frame(x=rep(letters[1:3], 4), y=(1:12), z=(LETTERS[1:12]))
> dfr
x y z
1 a 1 A
2 b 2 B
3 c 3 C
4 a 4 D
5 b 5 E
6 c 6 F
7 a 7 G
8 b 8 H
9 c 9 I
10 a 10 J
11 b 11 K
12 c 12 L
I would like to
2011 Apr 03
1
zoo:rollapply by multiple grouping factors
# Hi there,
# I am trying to apply a function over a moving-window for a large
number of multivariate time-series that are grouped in a nested set of
factors. I have spent a few days searching for solutions with no luck,
so any suggestions are much appreciated.
# The data I have are for the abundance dynamics of multiple species
observed in multiple fixed plots at multiple sites. (I total I
2006 Apr 20
1
Randomly selecting one row for each factor level [Broadca st]
The following should work:
> dfr.samp <- dfr[tapply(1:nrow(dfr), dfr$x, sample, 1),]
> dfr.samp
x y z
10 a 10 J
2 b 2 B
9 c 9 I
Andy
From: Kelly Hildner
>
> I don't use R much, and I have been unable to figure out how
> to get the
> subset of my data frame that I would like.
>
> For example, if this were my data frame:
>
> > dfr <-
2003 Sep 17
3
[Bug 667] Openssh 3.7x, Windows ssh clients and Ldap don't play together
http://bugzilla.mindrot.org/show_bug.cgi?id=667
Summary: Openssh 3.7x, Windows ssh clients and Ldap don't play
together
Product: Portable OpenSSH
Version: 3.7.1p1
Platform: ix86
OS/Version: Linux
Status: NEW
Severity: critical
Priority: P2
Component: PAM support
AssignedTo:
2009 Sep 14
0
invalid type (list) for variable
Hello -
I am attempting to add interaction terms to a model using the gamm
function in the mgcv package. I stripped it down to only two terms to
simplify it. I have no trouble with individual terms, continuous or
factors, nor with interacting factor terms; I cannot, however, figure
out how to add interactions between continuous*factor terms. I applied
a smoother to my continuous term because it
2012 Jun 21
0
Getting started with Bayesian Change Point model in R
Hi- I am interested in running the BCP model in R and I am also new to R.
My main issue is how to ask a specific questions within the script for
this model,
i.e., how one or multiple dependent factors (blue) are interact with the
dependent factor (yellow), and nest the question do categorical factors
(green) changes those interactions. I have attached some fake data in
the link below with
2000 May 31
2
Installing add on packages
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 R. When I''m at the
>prompt in R, and type ''R INSTALL /usr/apps/tree'' I get: ''Error: Syntax
error'' I want tree to end up in the
2016 Mar 22
3
Memory usage in prcomp
Hi All:
I am running prcomp on a very large array, roughly [500000, 3650]. The array itself is 16GB. I am running on a Unix machine and am running ?top? at the same time and am quite surprised to see that the application memory usage is 76GB. I have the ?tol? set very high (.8) so that it should only pull out a few components. I am surprised at this memory usage because prcomp uses the SVD