Displaying 20 results from an estimated 200 matches similar to: "My first R-program"
2000 Apr 05
0
My first R program
Hi,
Sorry to bother you guys with this syntax problem, this is my first R
program, and I seem to not have grasped something right. I keep getting
an error message from 'parse' on the line with the *** :
pValCalculator(b, n=20, m=20)
{
ind <- 1:min(c(n,m))
prob <- (1-pnorm(b,sd=std*sqrt(ind)))
prob1 <- sum((n-ind+1)*(m-ind+1)*prob)
prob1
}
inputData <-
2010 Mar 27
1
string width calculation
Colleagues,
I am trying to create a PDF document in which I use margin text with two different fonts. The resulting text might be:
XXXXXyZZZ
where X and Z are one font and Y is the other.
My plan was to do this in the following manner:
mtext("XXXXX ZZZ", cex=2, adj=0.5, family=SOMEFONT)
mtext("Y", cex=2, adj=??, family=DIFFERENTFONT)
My question regards how to calculate
2005 Sep 09
2
Question about plotting discontinuous data
Hi, I have a simple question that I just cannot figure out. I
have 2 corresponding columns of data, one column (X-axis) for
time (formatted thus: 8:30:01am = 830.1, 12:30:05pm = 1230.5,
and one column (Y-axis) for values.
When I attempt to plot the data using something like
plot(inputdata[,1],inputdata[,2],type="l");
I get breaks in the plot (since the time essentially jumps
from
2009 Oct 14
2
attach
Hi all,
I have a question regarding the memory usage for the attach function.
Say I have a data.frame inputdat that I create with read.csv.
I would like to know what happens on the memory side when I use
attach(inputdata)
Is there a second allocation of memory for inputdata?
Then I'm using eval on a expression which depends on the columns of
inputdata. Is it better not to use attach
2005 Apr 08
2
DLL Memory Problem
Hello,
I have created a .dll file using G77 and MinGW on my PC (Windows
2000). After using dyn.load to bring it into R2.0.1, I then call the .dll
through the function ccprox shown below. It returns the correct
values. If I run it a second time though it returns different values, so
it seems something is being placed oddly in memory.
If I unload and reload the .dll it works again the first
2003 Feb 21
5
Problem Writeing a pipe using R (stdin is consumed)
Hi everybody,
I a, trying to use R as a pipe like this:
cat inputData | R --silent RCommandFile >outputData
The RCommandFile would contain something like readLines(stdin()).
I have tryed various things and none did work cleanly.
One possible solution is to use the pipe() function inside R and to pass in the "cat inputData" however this is not very convenient
since I would like to
2004 Oct 14
2
fidelity of generated raster images (R and perl)
Hi:
Goal: use R to turn a matrix of 1's and 0's
into a corresponding image (e.g. png)
of black and white pixels.
Why R: Yes, I can do this more efficiently and precisely
with a perl module like Image::PBM. Been there,
done that many times, etc. (Just humor me.
I'm trying to do this with R for a number of reasons.)
Problem:
2018 Apr 12
2
R Timeseries tsoutliers:tso
Hello,
Writing to seek help in regard to some unexpected performance anomaly i am
observing in using tsoutlers:tso on the mac vs on an AWS cloud server..
I am running the following code with very small dataset of about 208
records.
d.dir <- '/Users/darshanpandya/xxxxxx'
FNAME <- 'my_data.csv'
d.input <- fread(file.path(paste0(d.dir,"/zzz/"),FNAME,fsep =
2013 May 17
1
[LLVMdev] Alignment attribute of function arguments
Hello everyone,
Hopefully a simple question. How can I access function argument alignment
information? If my code has something like this:
void foo(short * __restrict __attribute__ ((aligned(8))) InputData){}
...as I deal with argument (InputData) can I get the alignment info set for
it?
Thanks!
Sergei
---
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by
2010 Dec 02
1
Arrange elements on a matrix according to rowSums + short 'apply' Q
Greetings,
My goal is to create a Markov transition matrix (probability of moving from
one state to another) with the 'highest traffic' portion of the matrix
occupying the top-left section. Consider the following sample:
inputData <- c(
c(5, 3, 1, 6, 7),
c(9, 7, 3, 10, 11),
c(1, 2, 3, 4, 5),
c(2, 4, 6, 8, 10),
c(9, 5, 2, 1, 1)
)
MAT <- matrix(inputData,
2018 Apr 13
0
Fwd: R Timeseries tsoutliers:tso
Hello,
Writing to seek help in regard to some unexpected performance anomaly i am
observing in using tsoutlers:tso on the mac vs on an AWS cloud server..
I am running the following code with very small dataset of about 208
records.
d.dir <- '/Users/darshanpandya/xxxxxx'
FNAME <- 'my_data.csv'
d.input <- fread(file.path(paste0(d.dir,"/zzz/"),FNAME,fsep =
2009 Nov 19
1
problem post request with RCurl
Hi, I am trying to use a CGI service (Pubchem PUG) via RCurl and am
running into a problem where the data must be supplied via POST - but
I don't know the keyword for the argument.
The data to be sent is an XML fragment. I can do this via the command
line using curl: I save the XML string to a file called query.xml and
then do
curl -d @query.xml
2000 Mar 27
1
Installing R on Solaris
Hi,
I've been trying to install R on Solaris, I've been following the
instruction for configuring & compiling R (I have gcc and f77
installed)- but I get Error messages. I'd appreciate it if you could
look at the output, (pasted below) and give me some advice on what to
do. I've attached the R install 'readme'.
Thanks, a quick reply would be greatly appreciated,
2000 Apr 05
1
Working with R batch
Hi all,
I'm trying to invoke R from a perl program, using R BATCH. My original
R program wrote an output to a file and plotted a graph. I'm having
problems with the following three things:
1) To get the output file name form the perl program I wrote the
following, in my R program:
commandArguments <- commandArgs();
outputFile <- commandArguments[length(commandArguments)];
This
2008 Apr 22
2
Multidimensional contingency tables
How does one ideally handle and display multidimenstional contingency
tables in R v. 2.6.2?
E.g.:
> prob1<- data.frame(victim=c(rep('white',4),rep('black',4)),
+ perp=c(rep('white',2),rep('black',2),rep('white',2),rep('black',2)),
+ death=rep(c('yes','no'),4), count=c(19,132,11,52,0,9,6,97))
> prob1
victim perp
2010 Sep 06
1
calculating area between plot lines
Hi everyone. I have these data:
probClass<-seq(0,0.9,0.1)
prob1<-c(0.0070,0.0911,0.1973,0.2949,0.3936,0.5030,0.5985,0.6869,0.7820,0.8822)
prob2<-c(0.0066,0.0791,0.2358,0.3478,0.3714,0.3860,0.6667,0.6400,0.7000,1.0000)
# which I'm plotting as follows:
plot(probClass,prob1,xlim=c(0,1),ylim=c(0,1),xaxs='i',yaxs='i',type="n")
lines(probClass,prob1)
2012 Jul 09
4
Skipping lines and incomplete rows
I have a text file that has semi-colon separated values. The table is nearly
10,000 by 585. The files looks as follows:
*******************************************
First line: Skip this line
Second line: skip this line
Third line: skip this line
variable1 Variable2 Variable3 Variable4
Unit1 Unit2 Unit3
10 0.1 0.01 0.001
20
2011 Aug 03
2
convert a splus randomforest object to R
Hi,
I have a randomforest object "cost.rf" that was created in splus 8.0,
now I need to use this trained RF model in R. So in Splus, I dump the RF
file as below
data.dump("cost.rf", file="cost.rf.txt", oldStyle=T)
then in R, restore the dumped file,
library(foreign)
data.restore("cost.rf.txt")
it works fine and able to restore the
2003 Jul 10
2
please help on frag polynoms
hi there,
can anyone help me on the topic of frag polynoms?
i just heard of a friend of mine, that i could build in a functioon called
fragpoly (he was talking of such a function in the 'stata' language) in order
to improve my process of finding an optimal linear model.
instead of trying a vast amount of transformed inputdata to find the best
fit and then step backwards down to e.g.
2011 Oct 06
1
sum of functions
Dear all,
I would like to create a code for semiparametric Klein and Spady's
estimator. For that I created a function that provides the log-likelihood
function for each observation (so it is a function of betas and i, where i
denotes the observation). Now, in order to maximize the log-likelihood
function, I have to sum these log-likelihood functions for each i and so to
get another function