Displaying 20 results from an estimated 1100 matches similar to: "quit(save=default??)"
2005 May 24
1
contourLines() starts a plot device
I want to use contourLines() to get contour line coordinate vectors,
but I don't want to make a plot. However contourLines() insists on
opening a graphics device. Is there a way tell it not to do this?
> version
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status Patched
major 2
minor 1.0
year 2005
month 04
day 20
language R
2000 Sep 19
2
dev.print() bug?
dev.print() seems to get confused when the graphics window is
resized as in the following:
> plot(1,1)
> dev.print()
X11
2
> #--- resize graphics device window with mouse---
> dev.print()
Error in dev.print() : Object "hp" not found
Vital statistics:
R : Copyright 2000, The R Development Core Team
Version 1.1.1 (August 15, 2000)
Linux Red
2002 Feb 14
1
immortal connections
I have several data input functions that include a construct like
the following:
indat <- function(stuff) {
[...]
awkp <- paste("awk ...yada yada...", stuff, etc.)
scan(pipe(awkp),quiet=TRUE)
}
I use these functions a lot, and as I do, a lengthening list of
closed, but undestroyed, connections accumulates. Ultimately this
appears to stuff things up and cause
2011 Mar 11
0
variance explained by each term in a GAM
Picking up an ancient thread (from Oct 2007), I have a somewhat more complex
problem than given in Simon Wood's example below. My full model has more than
two smooths as well as factor variables as in this simplified example:
b <- gam(y~fv1+s(x1)+s(x2)+s(x3))
Judging from Simon's example, my guess is to fit reduced models to get
components of deviance as follows:
b1 <-
2004 Apr 02
3
Doing SQL GROUP BY in R
I want a list of the number of times some factor levels appear together,
similar to the following SQL statement:
SELECT A, B, COUNT(C) FROM TBL GROUP BY A, B
How do I do that with a data.frame in R?
Thanks,
Jesper Frickmann
Statistician, Quality Control
Novozymes North America Inc.
77 Perry Chapel Church Road
Franklinton, NC 27525
USA
Tel. +1 919 494 3266
[[alternative HTML version deleted]]
2002 Aug 15
2
complex splits
Hi everyone,
I'm having trouble figuring out how to split a dataframe more than once.
Let's say I have a dataframe d with a certain column called splitcol
composed of four possible ordinal values. The same dataframe has
two other columns, col1 and col2, that have one of two possible values
each. I'd like to split d$splitcol based on col1 and col2 so I can report
frequencies of the
2004 Apr 20
2
Creating variable names
My apologies for asking what is doubtless a dumb question, but I have
scant experience in R.
It would be very convenient in doing lots of plots to be able to do them
in a loop that stepped through a vector of variable names. For example
one could say
x<-("mydates")
y<-c("foo1","foo2","foo3") #where "foon" were vectors
2002 Apr 23
3
stacking vectors of unequal length
R-users --
I would like to make a single vector out of something like the following:
y0 <- rep(0,100)
y1 <- rep(1,20)
and stack them one on top of the other to a vector y with length 120.
Thanks,
Dan
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Dan Powers
Associate Professor, Sociology
University of Texas at Austin
2005 Jan 31
1
naming list elements
All -
Each time through a loop I create a new dataset, which I would like to
append to a list object. Each item of the list should be the data matrix
created in that step of the loop; I would like the NAME (or tag) of that
list item to be assigned the value of a character string:
I've tried something like this:
running.list <- numeric(0)
for(i in 1:num.files){
.....
running.list
2003 Apr 11
4
Can I improve the efficiency of my scan() command?
Hi,
Suppose I use the following codes to read in a data set.
###############################################
> rating <- scan("../Data/Rating.csv",
+ what = list(
+ usage = "",
+ mileage = 0,
+ sex = "",
+ excess = "",
+ ncd = "",
+
2002 Sep 10
3
print
Hi all,
Suppose I have a vector
Fruits <- c('Apple','Orange','Pear','Banana','Mango')
I want to print the statement
"The fruits in the basket are: Apple, Orange, Pear, Banana, Mango"
If I do:
print(paste('The fruits in the basket are:',Fruits))
The output is:
[1] "The fruits in the basket are: Apple" "The fruits in
2005 Apr 05
2
GLMs: Negative Binomial family in R?
Greetings R Users!
I have a data set of count responses for which I have made repeated observations
on the experimental units (stream reaches) over two air photo dates, hence the
mixed effect. I have been using Dr. Jim Lindsey's GLMM function found in his
"repeated" measures package with the "poisson" family.
My problem though is that I don't think the poisson
2002 Sep 27
4
r-help search
I'd like to search the r-help archives.
Is there a way?
I want to find out how to impute missing values.
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2002 Apr 18
3
Variable definition problem
Hello, what does this error message indicate and how do I avoid this?
(sample code below)
Thank you.
-Tosh
#read in the data table
co<-read.table("co.txt",header=T,as.is=T)
for (i in 1:3){
paste("logco",i, sep="")<-log(co$co[co$day==i])
}
Gives the error:
Error: Target of assignment expands to non-language object
2005 Mar 29
2
matching vectors against vectors
Hi all.
I have a re-occuring typical problem that I don't know how to solve
efficiently.
The situation is the following: I have a number of data-sets
(A,B,C,...) , consisting of an identifier (e.g. 11,12,13,...,20) and a
measurement (e.g. in the range 100-120). I want to compile a large
table, with all availabe identifiers in all data-sets in the rows, and
a column for every
2005 Feb 18
4
R & bash script
Hi
how is it possible to use more than one command when i'm
didn't want use R CMD BATCH for specific reason?
$ echo "(x<-1:10)" | R --vanilla
works
$ echo "(x<-1:10 ;y<-20:30 ;lm(y ~ x))" | R --vanilla
works not.
Is it further possible using bash variables like $i from a loop
in the bash echo call i.e. dm$x$i$k <-
2001 Jan 11
4
read data into R with some constraints
Hi,
I have a big data file (over 30,000 records) looks
like this:
100, 20, 46, 70
103, 0, 22, 45
117, -1, 34, 65
120, 15, 0, 25
113, 0, -1, 32
142, -1, -1, 55
.....
I want to read only those records having positive
values in all of the four
columns. That is, I don't want to read record # 3, 5,
and 6 into R. However,
when I type:
read.csv("data.csv", sep=",")
2002 May 03
3
skipping columns with read.fwf?
I have a file in fwf. It is rather large, about 40,000 rows and 40 variables (columns). I only need about 10 variables form the data set for the analysis at hand. Unfortunately, these 10 variables are not contiguous in the file, for example, the first is position 1-8, the next position 25-27, then 40.
Is there a way to read the selected varaibles that I need without reading in the entire data
2001 Sep 25
2
read.table() suggestions
Hi,
I understand work is being done to improve read.table(), especially by
Prof. Brian D. Ripley. I offer below a version that I wrote, in the hope some
aspects of it may prove useful or at least inspire discussion.
Be aware that my version differs in a couple fundamental ways that reflect
my aversion to dataframes and factors. So it returns a list of vectors which
are all character,
2004 Mar 19
5
loop through files in a dir
Hello
I have data in many files in a directory, how can I
loop through the files in a given dir in-order-to
build a data.frame?
thanks