Displaying 20 results from an estimated 100 matches similar to: "help for color parameter"
2012 Mar 28
2
Data extraction
Dear ReXperts,
I have the below text file output. I need to extract the T, QC, QO, QO-QC
and WT columns for
the data between T = 10 and T=150.
Any ideas?
Thanks in advance.
========================================================================================
1 D C ---CAT-- T THETA QC QO
QO-QC QC/QO WT FSD
8 1 0 1.0000E+01
2008 Dec 22
1
questions about read datafile into R
Dear all:
I have been thinking to import below one data file (.txt)into R by
read.table(..,skip=1, header=T). But How can I deal with the repeated
rows of TABLE NO.1 and names of data variables in the middle of this
data file. The similar block will be repeated 100 times, here only show
4 of them and within each block, data records also can vary, here only
paste 4 rows for example. I appreciate
2008 Dec 22
1
question about read datafile
Dear all:
I have been thinking to import below one data file (.txt)into R by
read.table(..,skip=1, header=T). But How can I deal with the repeated
rows of TABLE NO.1 and names of data variables in the middle of this
data file. The similar block will be repeated 100 times, here only show
4 of them and within each block, data records also can vary, here only
paste 4 rows for example. I appreciate
2012 Nov 28
3
Speeding reading of large file
R 2.15.1
OS X and Windows
Colleagues,
I have a file that looks that this:
TABLE NO. 1
PTID TIME AMT FORM PERIOD IPRED CWRES EVID CP PRED RES WRES
2.0010E+03 3.9375E-01 5.0000E+03 2.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 1.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
2.0010E+03 8.9583E-01
2012 Feb 16
2
help with e+01 number abbreviations
Dear List,
I will appreciate any advice regarding how to convert the following numbers
[I got in return by taxondive()] in numeric integers without the e.g.
6.4836e+01
abbreviations.
Thank you very much in advance,
Gian
> taxa_dive
Species Delta Delta* Lambda+ Delta+ S
Delta+
Nat1 5.0000e+00 6.4836e+01 9.5412e+01 6.7753e+02 8.7398e+01
436.99
Nat2
2012 Oct 18
4
speeding read.table
R 2.15.1
OS X
Colleagues,
I am reading a 1 GB file into R using read.table. The file consists of 100 tables, each of which is headed by two lines of characters.
The first of these lines is:
TABLE NO. 1
The second is a list of column headers.
For example:
TABLE NO. 1
COL1 COL2 COL3 COL4 COL5 COL6 COL7 COL8 COL9 COL10
2008 Dec 29
0
Serial Correlation Test for Short Time Series
Hello,
Are there any R functions available for performing a serial correlation test
for short
time series (e.g, series having between 10-14 observations)?
Many thanks!
Isabella R. Ghement, Ph.D.
Ghement Statistical Consulting Company
301-7031 Blundell Road, Richmond, B.C., Canada, V6Y 1J5
Tel: 604-767-1250
Fax: 604-270-3922
E-mail: isabella at ghement.ca
Web: www.ghement.ca
-----Original
2004 Jul 30
0
P-value from the joint cumulative distribution of an n-dimensional order statistic
Hello,
I want to compute the P-value from the joint cumulative distribution of an n-dimensional
order statistic in R, using the formula found on
http://cmgm.stanford.edu/%7Ekimlab/multiplespecies/Supplement/methods_network.html
My data consists of three different techniques (G2D, POCUS and RANDOM), and each has
associated with it a number of rankings (integer between 0 and 1000), like for
2008 Jun 03
0
Summarizing dummy coefficients in sem package
Greetings,
I am working in the sem package on a model with 3 exogenous variables (2
are nominal-categorical), and 4 endogenous, continuous variables. To
use sem with the nominal variables, I created dummy variables. Now, in
my sem output I have estimates for path coefficients for the
relationship between each level of the nominal variables and the
endogenous variables they are associated
2002 Sep 09
3
loading data from a specified directory
System info:
Linux slackware
R Version 1.5.1 (2002-06-17)
ESS 5.1.21
Emacs 21.2.1
-------------------
Colleagues
I have some text files in a certain directory and want to process them
sequentially. So I want to pass the filename identifier into a function
and loop through the processing of each file in turn.I've called the
file identifier f in this code segment:
image.dvm <- function
2009 Jan 18
1
?grep
Dear Rxperts,
I have the following data:
Study Study.Name C Category TC Time QC QO SD FSD Theta
1 NONE 0 P(22) 0 0.00 7.5596 0 0 8.0361e-03 0
1 NONE 6 G(50) 0 0.00 1.0000 0 0 0.0000e+00 0
1 NONE 2 F(02) 0 0.00 100.0000 0 0 0.0000e+00 0
1 NONE 3 F(03) 0 0.00 13.2280 0 0 1.6732e-02 0
2002 Apr 01
3
svd, La.svd (PR#1427)
(I tried to send this earlier, but it doesnt seem to have come through,
due to
problems on my system)
Hola:
Both cannot be correct:
> m <- matrix(1:4, 2)
> svd(m)
$d
[1] 5.4649857 0.3659662
$u
[,1] [,2]
[1,] -0.5760484 -0.8174156
[2,] -0.8174156 0.5760484
$v
[,1] [,2]
[1,] -0.4045536 0.9145143
[2,] -0.9145143 -0.4045536
> La.svd(m)
$d
[1]
2006 Jun 12
1
r's optim vs. matlab's fminsearch
Hi,
I'm having a problem converting a Matlab program into R. The R code works
almost all the time, but about 4% of the time R's optim function gets stuck
on a local minimum whereas matlab's fminsearch function does not (or at
least fminsearch finds a better minimum than optim). My understanding is
that both functions default to Nelder-Mead optimization, but what's
different about
2008 Sep 24
1
Logistic regression
Dear all,
I am currently learning to run logistic regression models with R. Would
someone tell me what this exactly means:
Estimated scale (compare to 1 ) 1.746724
If the value is higher or lower than 1, what should I do?
The complete results of the model were as follows:
Generalized linear mixed model fit using Laplace
Formula: success ~ diffca + (1 | partner1) + (1 | partner2) + (1 |
2001 Jun 26
5
breaks in hist()
I was using the hist() function to create a frequency table of some network
traffic data. The range in values is rather large, from 0 till just under
10e12. Calling hist(x, breaks=c(0,1000,1e6,1e9,1e12),plot=F,freq=T) causes
hist() to return :
$breaks
[1] -1.0000e+05 1.0100e+05 1.1000e+06 1.0001e+09 1.0000e+12
Is this recalculation of the breaks by hist() intended?
Maarten van Gelder.
2008 Aug 29
1
significance of random effects in poisson lmer
Hi,
I am having problems trying to assess the significance of random terms
in a generalized linear mixed model using lme4 package. The model
describes bird species richness R along roads (offset by log length of
road log_length) as a function of fixed effects Shrub (%shrub cover) and
Width (width of road), and random effect Site (nested within Site
Cluster).
>From reading answers to previous
2011 Jul 26
0
How do you report lmer results?
Dear R-Gurus
I am a PhD student from South Africa working on chimpanzee behaviour.
I am looking at patterns of shade utilization and am using generalized
linear mixed models to examine the effects of various factors on
whether chimpanzees choose to spend time in the sun or shade. I
realise that the lme4 package and the outputs of the lmer functions
have been discussed ad nauseum but I have been
2008 Mar 08
1
analysing mixed effects/poisson/correlated data
I am attempting to model data with the following variables:
timepoint - n=48, monthly over 4 years
hospital - n=3
opsn1 - no of outcomes
total.patients
skillmixpc - skill mix percentage
nurse.hours.per.day
Aims
To determine if skillmix affects rate (i.e. no.of.outcomes/total.patients).
To determine if nurse.hours.per.day affects rate.
To determine if rates vary between
2008 Mar 29
0
AD-model builder under R for mix logistics model, a problem.
the code is list below , i can run this code for laplace approximation
but not importance sampling. the code work properly if use impSamp=0 ,
but error for any other number >0 .
could you guys help me out.
thanks so much !
source("http://www.mi.uib.no/~skaug/cash/lesaffre_dat.s")
library(glmmADMB)
fit_glmmADMB_ip <-
2008 Mar 29
0
AD-MB problem in package:glmmADMB
Hi here,
i recently notice the software built by otter company know as AD-MB
tools . i explore a little bit this tools under the R Package for mixed
logistics model. it is a very interesting tool. but i get several questions.
first question: i tried the R code below, and have the error , i can run
the code for switching the setting to impSamp=0 , it means i can only
run the code under