Displaying 20 results from an estimated 9000 matches similar to: "(no subject)"
2012 Apr 23
2
.rda vs. .RData
Are they the same with .RData being the newer format?? Thanks,
...Tao
2017 Dec 09
1
Remove
library(dplyr)
DM <- read.table( text='GR x y
A 25 125
A 23 135
.
.
.
)
DM %>% filter((GR == "A" & (x >= 15) & (x <= 30)) |
(GR == "B" & (x >= 40) & (x <= 50)) |
(GR == "C" & (x >= 60) & (x <= 75)))
On Fri, Dec 8, 2017 at 4:48 PM, Ashta <sewashm at gmail.com>
2011 Feb 22
5
"aggregate" in R
Hi, R users,
I'm wondering how I can aggregate data in R with different functions for
different columns. For example:
x<-rep(1:5,3)
y<-cbind(x,a=1:15,b=21:35)
y<-data.frame(y)
I want to aggregate "a" and "b" in y by "x". With "a", I want to use
function "mean"; with "b", I want to use function "sum". I tried:
2013 Feb 23
2
Wikipedia plots and tables?
Hello, All:
What facilities exist for plots and tables of data in the
standard MediaWiki software beyond the obvious standards?
The standard MediaWiki tables and graphics capabilities seem to
me to be rather clumsy, and I wonder if I'm missing some available
extensions?
The standard MediaWiki tables are described in a Wikipedia
article on "Help:Table".
2012 Apr 26
8
understanding the FUNCTION function
Hello,
I am trying to understand why the FUNCTION used in several codes, won't
create the object after it finishes running the code.
For instance, look at the following:
Number<- function(x) {MyNumberIs<-x}
When I run
Number(5)
Everything goes well, except that if I try to call the object MyNumberIs, I
won't find it.
I understand that this function can assume many parameters,
2013 Oct 12
1
lmerTest
Hi,
I'm trying to user lmer function from lmerTest package because, if I
understood correectly, it allows to make better inference than lmer method
from lme4 package. However, whatever I do I keep getting this error:
Error in lme4::lFormula(formula = mark ~ ssCount + sTime+ : rank of X =
1660 < ncol(X) = 1895
any ideas what could be a problem?
thanks,
Srecko
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2013 Oct 10
1
Rcpp and mclapply
Dear all,
I have an R script that uses Rcpp, and I have been trying to parallelize
it using mclapply (I tried with the multicore and the parallel library)
Sometimes (not always, interestingly), the CPU use for each core drops,
usually so that the total over all cores reaches 100%, i.e., as fast as if
using just one single core fully. I tried my code directly from within
emacs, and also using a
2012 Nov 11
2
Cropping a matrix by rows
Hello r-help,
I've been banging my head against the computer in an attempt to learn how
to divide my matrix into segments by rows. I want to be able to return each
segment as a newly named object. I've tried looking at the apply functions
and creating a for loop but brain no work. Here's the basic starting
objects that I believe would be needed to separate the matrix.
mat <-
2011 Nov 25
3
counting values with some conditions in a simulation
Dear R users,
I am running simulations (1000), and in my simulation I am looking at
specific sums. For example, if the sum is >=4 then count this, if say <3,
then don't count, if the sum=3, then generate a random number from uniform
distribution, if this number is say less than 0.5, then count this sum, if
greater than 0.5, then don't count. I am having trouble with introducing
this
2012 Jan 11
3
64bit R under 32bit winxp
Hi all:
My OS is 32bit winxp,but I wanna install 64bit R2.14.1.
>From the following website,it says "You can also go back and add 64-bit components to a 32-bit install, or vice versa"
http://cran.r-project.org/bin/windows/rw-FAQ.html#Can-both-32_002d-and-64_002dbit-R-be-installed-on-the-same-machine_003f
Does it mean that I can install and run 64bit R2.14.1 under 32bit
2011 Aug 15
3
write.table extra column
In the following data.frame there are 6 columns, but 7 are written to
the CSV file.
install.packages("pmlr")
library(pmlr)
data(enzymes)
write.table(enzymes, sep=",", eol="\n",file="albert.csv")
2012 Mar 12
3
Idea/package to "linearize a curve" along the diagonal?
Hi,
I am trying to normalize some data. First I fitted a principal curve
(using the LCPM package), but now I would like to apply a
transformation so that the curve becomes a "straight diagonal line" on
the plot. The data used to fit the curve would then be normalized by
applying the same transformation to it.
A simple solution could be to apply translations only (e.g., as done
after a
2013 Apr 04
2
question about message
Hello R, could you tell me please, how to fix this issue?
There is installed RStudio-2.15.2 and the next steps where follow but
the message appears:
http://cran.r-project.org/web/packages/RMySQL/INSTALL):
>
> 1. Download the RMySQL_0.9.tar.gz file to the folder C:\Program
> Files\R\R-2.15.1\bin\x64
> 2. Open a Windows command line, and change directory to that folder
> 3.
2012 Dec 12
3
Fw: regarding plot
Hello,
i am working in origin pro,
i want to plot a graph as like a pdf attached but with black and white lines.
here radial axis varies from 0 to 1. and angular axis from 0 degree to 60 degree.and third axis which is depend on both radial and axial gives non intersecting lines.
how can i read the data from plot for replot.
vikas
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2012 Mar 12
3
How to plot diagonal line at any coordinate range in R
Dear expert
How can we plot diagonal across (from bottom-left-hand corner to top
right-hand corner),
at any given coordinate range
For example
> plot(c(-2,3), c(-1,5), type = "n", xlab="x", ylab="y", asp = 1)
or
> plot(c(0,1000), c(0,334), type = "n", xlab="x", ylab="y", asp = 1)
I tried abline with the following but failed:
2012 Oct 07
3
Robust regression for ordered data
I have two regressions to perform - one with a metric DV (-3 to 3), the
other with an ordered DV (0,1,2,3).
Neither normal distribution not homoscedasticity is given. I have a two
questions:
(1) Some sources say robust regression take care of both lack of normal
distribution and heteroscedasticity, while others say only of normal
distribution. What is true?
(2) Are there ways of using robust
2013 Feb 07
4
Hard Stop?
is it possible to throw a stop() that is so hard that it will escape
even tryCatch?
/iaw
----
Ivo Welch (ivo.welch at gmail.com)
2012 Feb 14
2
How to suppress the empty plots in xyplot (lattice)
Dear all,
In a plot command like
xyplot(Y~X|ID*PERIOD,data=...)
xyplot will generate all the possible ID*PERIOD combinations. But not all
of them have data in there. So I have a lot of empty plots. How can I
suppress those empty plots and ask xyplot only to generate plots actually
with data. Thanks.
Jun
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2012 Nov 24
3
function call from another r file
How to call a function from another r file ?
Anyone can help me .
Having a function named like fun1 which is saved in r file file1.r
and i have another r file like file2.r, and i need to call the fun1 (which
is in file1) within file2.
Thank you
--
View this message in context: http://r.789695.n4.nabble.com/function-call-from-another-r-file-tp4650627.html
Sent from the R help mailing list
2012 Nov 17
2
Basic Stats question
Dear All
I am a stats newbie and have a basic stats question;
i have y as dependent variable and x1 to x5 as dependent variable.
I need to know which variables x1 to x5 are actually affecting y. How
do I find out?
can an example be given which makes things clear (if possible)?
Thanks
Parth