Displaying 20 results from an estimated 200 matches similar to: "reading table"
2007 Apr 25
2
assigning two conditions to grep()
Hi,
i have a problem in assigning 2 conditions to grep() ,
my data look like this:
DA 24 N7 Rad= 3.4 20 Sac= 0.93 Acc= 4.76
DA 24 N7 Rad= 3.4 14 Sac= 0.65 Acc= 3.33
DA 24 N7 Rad= 3.4 3 Sac= 0.14 Acc= 0.71
DA 24 N7 Rad= 3.4 11 Sac= 0.51 Acc= 2.62
DG 23 N7 Rad= 3.4 8 Sac= 0.37 Acc= 1.91
DG 23 N7 Rad= 3.4 5 Sac= 0.23 Acc= 1.19
DG 23 N7 Rad= 3.4 0 Sac= 0.00 Acc= 0.00
DG 23 N7 Rad= 3.4 3 Sac=
2005 Jan 03
2
Two brief questions concerning sapply. Can anyone please help?!
To anyone who can help:
I have two brief questions concerning sapply. Following below is the
code for my example. The two problems are described at the end of the
code:
site <- rep(2:6, each = 12)
tillage <- rep(c(1,-1), each = 6, times = 5)
carbon <- c(18.23, 16.06, 17.81, 16.07, 17.26, 17.08,
14.92, 15.88, 12.11, 14.23, 16.99, 13.57,
20.34, 20.3,
2004 Feb 13
3
Calculate Closest 5 Cases?
I've only begun investigating R as a substitute for SPSS.
I have a need to identify for each CASE the closest (or most similar) 5
other CASES (not including itself as it is automatically the closest). I
have a fairly large matrix (50000 cases by 50 vars). In SPSS, I can use Correlate > Distances to generate a matrix of similarity, but only on a small sample. The entire matrix can not
2015 Jun 02
2
GlusterFS 3.7 - slow/poor performances
hi Geoffrey,
Since you are saying it happens on all types of volumes,
lets do the following:
1) Create a dist-repl volume
2) Set the options etc you need.
3) enable gluster volume profile using "gluster volume profile <volname>
start"
4) run the work load
5) give output of "gluster volume profile <volname> info"
Repeat the steps above on new and old
2011 Oct 29
0
[LLVMdev] [llvm-commits] [PATCH] BasicBlock Autovectorization Pass
On Sat, 2011-10-29 at 15:16 -0500, Hal Finkel wrote:
> On Sat, 2011-10-29 at 14:02 -0500, Hal Finkel wrote:
> > On Sat, 2011-10-29 at 12:30 -0500, Hal Finkel wrote:
> > > Ralf, et al.,
> > >
> > > Attached is the latest version of my autovectorization patch. llvmdev
> > > has been CC'd (as had been suggested to me); this e-mail contains
> >
2005 Jan 24
0
limma "ref"
Hi,
I have a question about limma.
I have data from spotted arrays.
I have class A and Class B on the same slide. In Limma if I put class
A as the reference (ref), are the list of genes I get in the output for class A or
class B?
#design <- modelMatrix(targets, ref="classA")
design
Josephine Brennan
[[alternative HTML version deleted]]
2007 Apr 02
2
Device drivers - pdf()
Hallo R-experts,
I produced a R graphic with the help of the following commands:
plot(0:4,0:4, type = "n", xlab = "X-Werte", ylab = "Y-Werte")
points(rnorm(100), rnorm(100), col = "black")
locator(2, type= "l")
locator(2, type = "l", col = "red")
I could display this graphic by using windows() before entering those
commands.
2011 Oct 29
4
[LLVMdev] [llvm-commits] [PATCH] BasicBlock Autovectorization Pass
On Sat, 2011-10-29 at 14:02 -0500, Hal Finkel wrote:
> On Sat, 2011-10-29 at 12:30 -0500, Hal Finkel wrote:
> > Ralf, et al.,
> >
> > Attached is the latest version of my autovectorization patch. llvmdev
> > has been CC'd (as had been suggested to me); this e-mail contains
> > additional benchmark results.
> >
> > First, these are preliminary
2014 Sep 01
1
Correlation Matrix with a Covariate
R Help -
I'm trying to run a correlation matrix with a covariate of "age" and will
at some point will also want to covary other variables concurrently.
I'm using the "psych" package and have tried other methods such as writing
a loop to extract semi-partial correlations, but it does not seem to be
working. How can I accomplish this?
library(psych)
> set.cor(y =
2008 Feb 14
5
data manipulation for plotting
Hi,
i'd like to plot some data that I have with the value on the x axis and freq
on the y axis.
So, I need to calculate the freq a value is seen within my data vector
for example, say i have a vector of data
data=c(1,1,1,4,5,5,6)
I want
values<-c(1,4,5,6)
freq<-c(3,1,2,1)
in order to enable me to plot this. Sorry, i'm new to R. What is standard
2002 Apr 05
2
weighted 2 or 3 parameter weibull estimation?
I've figured out how to use optim (barely) to estimate 2 parameter =
weibull distributions. I can't get over how easy this is. What I need to =
do is use a weight in the observations.....
For example,=20
the tree diameters and weights are are=20
4.70 , 100
6.00, 98
7.10, 75.0
8.10, 86.3
8.60, 80.456
8.90, 20.5
9.50, 16.6
11.40, 12.657
11.80, 12.47
14.50,
2012 Oct 17
3
aggregate function not working?
The aggregate function for some reason will now work for me.
The error I'm getting is:
"Error in sort.list(y) : 'x' must be atomic for 'sort.list'
Have you called 'sort' on a list?"
agPriceList=aggregate(PriceList$Size, list(PriceList$bandNum),sum)
*Price list dataframe:*
dput(PriceList)
structure(list(Price = c(0, 8.18, 8.27, 10.42, 10.5, 10.6, 11.13,
2006 Oct 19
1
Problem Reading from .txt
I apologize that I've asked a similar question before, but being new to
R I don't think I did a very good job of formating the question.
I've included a text file since the date set is somewhat large.
What I have is a huge string of numbers in a text file. The numbers are
all separated by comma's and the groups are separated by a semicolon.
What I would like to do is read each
2011 Oct 29
4
[LLVMdev] [llvm-commits] [PATCH] BasicBlock Autovectorization Pass
Ralf, et al.,
Attached is the latest version of my autovectorization patch. llvmdev
has been CC'd (as had been suggested to me); this e-mail contains
additional benchmark results.
First, these are preliminary results because I did not do the things
necessary to make them real (explicitly quiet the machine, bind the
processes to one cpu, etc.). But they should be good enough for
discussion.
2011 Oct 29
0
[LLVMdev] [llvm-commits] [PATCH] BasicBlock Autovectorization Pass
On Sat, 2011-10-29 at 12:30 -0500, Hal Finkel wrote:
> Ralf, et al.,
>
> Attached is the latest version of my autovectorization patch. llvmdev
> has been CC'd (as had been suggested to me); this e-mail contains
> additional benchmark results.
>
> First, these are preliminary results because I did not do the things
> necessary to make them real (explicitly quiet the
2004 Aug 21
3
Puzzled at lm() and time-series
I tried toy problems and there doesn't seem to be a basic problem
between lm() and ts objects:
X = data.frame(x=c(1,2,7,9), y=c(7,2,3,1))
lm(y ~ x, X)
X <- lapply(X, function(x) ts(x, frequency=12, start=c(1994,7)))
lm(y ~ x, X)
and this works fine - whether you do an lm() before or after making ts
objects, it's okay.
But I have a situation where things aren't okay.
2011 Feb 15
4
string parsing
I am trying to get stock metadata from Yahoo finance (or maybe there is
a better source?)
here is what I did so far:
yahoo.url <- "http://finance.yahoo.com/d/quotes.csv?f=j1jka2&s=";
stocks <- c("IBM","NOIZ","MSFT","LNN","C","BODY","F"); # just some samples
socket <-
2006 Apr 18
2
what happen?
Hi!
I want to choose part of the data. But it has a question.
> attach(PIKO)
> PIKO[1:5,]
code species dbh x y tag status branch
92 10142 PIKO 38.9 6.05 12.81 10165 alive 0
109 10213 PIKO 41.0 6.71 26.21 10202 alive 0
135 10222 PIKO 48.3 18.98 21.28 10214 alive 0
146 10223 PIKO 47.0 19.45 22.83 10224 alive 0
147 10223 PIKO 20.0 19.74
2001 Mar 10
3
Problem With Model.Tables Function
I am using R for the first time in one of my classes. My students have
alerted me to a problem for which we have not found an answer. We find
that some means returned by the model.tables function are not correct when
missing data is present in analysis of variance problems. We have
duplicated the problem using R 1.2.0, 1.2.1, and 1.2.2 under Windows 98
and several distributions of Linux (Redhat
2008 Dec 04
2
How to optimize this codes ?
How to optimize the for-loop to be reasonably fast for sample.size=100000000 ? You may want to change sample.size=1000 to have an idea what I am achieving.
set.seed(143)
A <- matrix(sample(0:1, sample.size, TRUE), ncol=10, dimnames=list(NULL, LETTERS[1:10]))
B <- list()
for(i in 1:10) {
B[[i]] <- apply(combn(LETTERS[1:10], i), 2, function(x) { sum(apply(data.frame(A[,x]), 1,