Displaying 20 results from an estimated 2000 matches similar to: "Grep with wildcards across multiple columns"
2007 Oct 15
2
Wildcards
Care to explain how i can use a wildcard expression to "source" all files
ending with .R in a subdirectory ? I've tried something like this
'source(glob2rx("*.R"))' without success.
Thank you
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2012 Nov 16
1
Error in Sweave but not underlying script
I'm trying to use Sweave to create a dynamic report of a variety of financial data checks. I have an .R code file to pull the data from a database, manipulate and filter it, and create individual data frames for each test. My Sweave .RNW document then calls that file with source() to generate the data for the report. The .R file works fine on its own, but when I run it from within the Sweave
2009 Sep 03
1
Output from as.windrose() in oce package baffles me
I'm having trouble understanding the output from as.windrose(). For one
thing, data on a boundary between sectors seem to be left out of the
counts. I assume that explains the missing point in the output below
(angle 45). Shouldn't one side of each sector interval be open, to
include values such as my 45 in the example? Also, why does the angle
180 in my input apparently not result in
2005 Oct 10
2
wildcards and removing variables
All,
Is there are a wildcard in R for varible names as in unix? For example,
rm(results*)
to remove all variable or function names that begin w/ "results"?
cheers,
Dave
ps - please respond directly to afshar@miami.edu
[[alternative HTML version deleted]]
2006 Feb 20
2
glob2rx function not working
Dear R users,
Inspired by previous list discussion of the glob2rxc function, I am
attempting to create a new vector called TOTAL by summing all vectors
whose names begin with ABC:
TOTAL = sum(list = ls(pattern = glob2rx("ABC*")))
I'm running R 2.2.1 on Windows XP. Can anyone say what I'm missing?
Thank you, Mark
2016 Apr 29
2
selecting columns from a data frame or data table by type, ie, numeric, integer
Good morning RGuru's
I have a data frame of 575 columns.? I want to extract only those columns that are numeric(double) or integer to do some machine learning with.? I have searched the web for a couple of days (off and on) and have not found anything that shows how to do this.?? Lots of ways to extract rows, but not columns.? I have attempted to use "(x == y)" indices extraction
2006 Sep 20
1
seq.Date not accepting NULL length.out (PR#9239)
There seems to be a bug in seq.Date such that it will not allow the user
to pass in length.out =3D NULL, despite the fact that this is the =
default
argument.
For example:
> dt1 <- as.Date("2004-12-31")
> dt2 <- as.Date("2005-12-31")
> seq.Date(dt1, dt2, length.out =3D NULL, by =3D "month")
Error in seq.Date(dt1, dt2, length.out =3D NULL, by =3D
2016 Apr 29
0
selecting columns from a data frame or data table by type, ie, numeric, integer
> dt1[ vapply(dt1, FUN=is.numeric, FUN.VALUE=NA) ]
a c
1 1 1.1
2 2 1.0
...
10 10 0.2
Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Fri, Apr 29, 2016 at 9:19 AM, Carl Sutton via R-help <
r-help at r-project.org> wrote:
> Good morning RGuru's
> I have a data frame of 575 columns. I want to extract only those columns
> that are numeric(double) or integer to do
2010 Aug 24
2
How to remove rows based on frequency of factor and then difference date scores
Hello-
A basic question which has nonetheless floored me entirely. I have a
dataset which looks like this:
Type ID Date Value
A 1 16/09/2020 8
A 1 23/09/2010 9
B 3 18/8/2010 7
B 1 13/5/2010 6
There are two Types, which correspond to different individuals in
different conditions, and loads of ID labels (1:50)
2015 Oct 04
2
Conditional importFrom (roxygen?)
Folks:
I am getting a build failure when I:
#' @importFrom utils shortPathName
which roxygenizes it to the NAMESPACE.
I suspect this is because this particular function is Windows-only, but I'm
a bit confused how I should "properly" importFrom a function like this so
it doesn't cause a build failure, but I don't get a note in my R CMD CHECK
if I DON'T have it:
2012 Nov 14
1
R wildcards, sapply and as.factor
I want to change the type to factor of all variables in a data frame whose names match a certain pattern.
So here I am trying to change the type to factor of all variables whose name begins with?namestub?in the dataframe?df.
attach(df)sapply(grep(glob2rx("namestub*"),names(df)),as.factor)
But this doesn't work since
>levels(df$namestub1)NULL
2009 Nov 02
3
question about difference in date objects
Hi R Community:
I want to take the difference in two dates:
dt2 - dt1.
But, I want the answer in months between those 2 dates.
Can you advise me?
Please respond to: pzs6 at cdc.gov
Thank you!
Phil Smith
Centers for Disease Control and Prevention
2013 Aug 16
1
as.Date.character speed improvement suggestion
R-Devel,
I store and retrieve a large amount of financial data (millions of rows) in a PostgreSQL database keyed by date (and represented in R by class Date). Unfortunately, I frequently find that a great deal of processing time is spent converting dates from character representations to Date class representations in R, presumably because strptime is not fast for large vectors (>10,000
2011 Jan 21
3
How to find data that includes certain values
I am trying to return an index for a data set by searching using filenames.
The name may be ANG_AUT.N.0734C70411A-1_1sA_0734C70411A.fasta, but i'd just
like to search it using the term "0734C70411" as the file may be
0734C70411A or 0734C70411C or 0734C70411D
Any way to do this other than doing something like this. where 0734C70411A
is part of matrix list[,8]
2010 Apr 19
3
stupid regexp question
Hello,
I have a stupid regexp question. I have a large data frame of strings. I would
like to convert all occurences of :
"W.m^{-2}"
to
"W/m2"
I make the following test :
gsub(glob2rx("W.m^{-2}"), "W/m2", "W.m^{-2}")
but it does not seem to work. I don't know how to do it otherwise as I could
never learn how to deal with the special
2010 Nov 16
2
Pass character vector to function argument
A bit embarrassed to post this seemingly trivial question, but I can't find anything in the archive that's quite relevant:
a1=1
a2=2
obs=objects(pattern=glob2rx("a?"))
I want to utilize 'obs' as a function argument to produce something like:
sum(a1,a2)
Obviously, sum(obs) doesn't work, but I've tried variations of 'eval', 'parse',
2023 Jan 26
2
Resumen de R-help-es, Vol 167, Envío 10
Hola esta es una solución
library(data.table)
library(stringr)
dt <- data.table( V1a = sample(c("1","0"), 10, TRUE)
, V1b = sample(c("1","0"), 10, TRUE)
, V2a = sample(c("1","0"), 10, TRUE)
, V2b = sample(c("1","0"), 10, TRUE)
, V3a =
2008 Dec 21
3
Globbing Files in R
Dear all,
For example I want to process set of files.
Typically Perl's idiom would be:
__BEGIN__
@files = glob("/mydir/*.txt");
foreach my $file (@files) {
# process the file
}
__END__
What's the R's way to do that?
- Gundala Viswanath
Jakarta - Indonesia
2018 Jan 28
4
Polly Dependency Analysis in MyPass
Hello,
I need to analyze dependencies in my llvm ir by using polly. i created a
new pass called mypass there i added polly dependency analysis pass but
when i execute this pass in gdb i get no data.
Why is that so?
My code is follows;
namespace {
struct mypass : public FunctionPass {
static char ID;
mypass() : FunctionPass(ID) {
}
virtual bool runOnFunction(Function &F)
{
2011 Dec 07
2
plotting and coloring longitudinal data with three time points (ggplot2)
Dear list,
I have been struggling with this for some time now, and for the last hour I have been struggling to make a working example for the list. I hope someone out there have some experience with plotting longitudinal data that they will share.
My data is some patient data with three different time stamps. First the patients are identified at different times (first time stamp). Second, they