On Tue, 26 Apr 2011, Wincent wrote:
I believe this posting is placed, and I take the liberty to re-direct
to the r-help mailing list.
But this is *NOT* the support list for rJava: that is
http://rosuda.org/lists.shtml
In particular the author of rJava does not monitor R-help.
Regards,
Rong
On 25.04.2011 20:05, shuangyan wrote:
Hello, i got this package from the paper:" Nonparametric Covariance Function
estimation for Functional and Longitudinal data".
http://stat.wharton.upenn.edu/~tcai/paper/html/Covariance-Function.html.
Thanks lot!
0. Please do read the posting guide!!! This
I believe this posting is placed, and I take the liberty to re-direct
to the r-help mailing list.
Regards,
Ronggui
On 26 April 2011 12:33, wrote:
> I am trying to create a web user interface using RApache. I need to install
> rJava packge but I am getting the following error message
>
> RApac
sudo apt-get install libsqlite3-dev
(Unfortunately, the method I described to find this package in my
previous post doesn't work for this one.)
- Phil Spector
Statistical Computing Facility
> for(i in 1:3) for(j in 1:4) print(ar34Ret(i,j),digits=15)
>Error in print(ar34Ret(i, j), digits = 15) :
> could not find function "ar34Ret"
The way you used
ar34Ret(i, j)
was actually wrong. It should be ar34Ret[i, j], if nothing else wrong.
At 2011-04-25 08:06:51£¬hill0093 wrote:
>I added
you should take a look at the doc of .jarray by input "?.jarray" in the console
and see related examples by "example(.jarray)" in the console.
This is what the doc says, and your issues might be related to it:
'.jevalArray' currently supports only a subset of all possible
array types. R
Hi Folks,
I'm new to the linux world and am having some trouble installing the RSQLite
package.
SQLite is installed, but some dependencies(?) seem to be missing.
Can anyone help?
> sessionInfo()
R version 2.13.0 (2011-04-13)
Platform: i686-pc-linux-gnu (32-bit)
> install.packages()
Installing
Many of the libraries that are packaged by the various Linux
distributions come in two forms:
1) The basic library, which can be used by any program that
has been built to access the library, and
2) development versions (ending in -dev on Debian based systems,
and -devel on Red Hat based s
Thank you very much, Peter. The " iter[i] = x[i]" solution worked
perfectly.
Galen
-Original Message-
From: Peter Langfelder [mailto:peter.langfel...@gmail.com]
Sent: Monday, April 25, 2011 17:07
To: galen.a.mo...@gmail.com
Cc: r-help@r-project.org
Subject: Re: [R] Trouble Passing a for
Hi,
On Apr 25, 2011, at 6:38 PM, Abraham Mathew wrote:
This is kind of a second question (yeah, I know), but I also get a
similar
error when I try to install the RCurl package
* installing *source* package RCurl ...
checking for curl-config... no
Cannot find curl-config
ERROR: configuratio
--- On Mon, 4/25/11, kmatthews wrote:
> From: kmatthews
> Subject: Re: [R] Random Relabelling
> To: r-help@r-project.org
> Received: Monday, April 25, 2011, 10:53 AM
> Thanks to everyone... this helps a
> lot. Just a quick question about
> etiquette in this forum (as it my first time
> questi
On 04/26/2011 09:19 AM, Rolf Turner wrote:
...
So either something's not working properly or I'm still not
understanding what
I should be doing. Enlightenment?
When the sender and the receiver understand what is being said,
that is communication.
When the sender understands, but the receiver do
csmark wrote:
>
> I know I'm bringing up an old thread but I ran into this exact same
> problem. It comes straight out of section 3.3 "Getting & Setting
> Attributes" from "An Introduction to R" documentation.
>
>
> http://cran.r-project.org/doc/manuals/R-intro.html#Getting-and-setting-attribu
On 26/04/11 10:46, Dirk Eddelbuettel wrote:
On 25 April 2011 at 17:39, Abraham Mathew wrote:
| Hello folks,
|
|
| Here's is info on what system I'm working on.
|> sessionInfo()
| R version 2.13.0 (2011-04-13)
| Platform: i686-pc-linux-gnu (32-bit)
|
|
| I'm trying to install the XML package. How
You need to index the variable iter: instead of iter = x[i], say
iter[i] = x[i].
But a better solution is to simply say
iter = x
at the beginning and don't update it in the loop.
The way your code is written, iter just holds the last x[i], and the
last x[i] at the end of each loop is 4.
Peter
This is kind of a second question (yeah, I know), but I also get a similar
error when I try to install the RCurl package
* installing *source* package RCurl ...
checking for curl-config... no
Cannot find curl-config
ERROR: configuration failed for package RCurl
* removing /home/abraham/R/i686
Greetings -
I am working on a piece of code to simulate vehicle times in and out in each
of a number of parking spaces. At this stage, my code basically does what
it is supposed to do but for the sequential number of each new parking event
for a given space (i.e., the index of the loop variab
On 25 April 2011 at 17:39, Abraham Mathew wrote:
| Hello folks,
|
|
| Here's is info on what system I'm working on.
| > sessionInfo()
| R version 2.13.0 (2011-04-13)
| Platform: i686-pc-linux-gnu (32-bit)
|
|
| I'm trying to install the XML package. However, I end up with the following
| error
sudo apt-get install libcurl4-openssl-dev
- Phil Spector
Statistical Computing Facility
Department of Statistics
UC Berkeley
Use try() or tryCatch() to let your loop continue looking
for more files after download.file() throws an error.
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
> -Original Message-
> From: r-help-boun...@r-project.org
> [mailto:r-help-boun...@r-project.org] On Behalf Of Rolf Tur
On Mon, 2011-04-25 at 12:52 -0500, Wendy Han wrote:
> I want to let R automatically download available files from a website in
> certain folders. Since the files I need, if exist, are in a certain
> directory, I used download.file() function with a predesigned directory.
> However, some of the fold
On 26/04/11 05:52, Wendy Han wrote:
Dear all,
I want to let R automatically download available files from a website in
certain folders. Since the files I need, if exist, are in a certain
directory, I used download.file() function with a predesigned directory.
However, some of the folders do no
Abraham -
sudo apt-get install libxml2-dev
is what you need to get the development libraries and
xml2-config installed on your Ubuntu machine.
- Phil
On Mon, 25 Apr 2011, Abraham Mathew wrote:
Hello folks,
Here's is info on what system I'm wo
Hello folks,
Here's is info on what system I'm working on.
> sessionInfo()
R version 2.13.0 (2011-04-13)
Platform: i686-pc-linux-gnu (32-bit)
I'm trying to install the XML package. However, I end up with the following
error message.
> install.packages("XML")
checking for xml2-config... no
Thank you for your help. Your R code works well.
Lisa
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h
Hi:
I think the embed() function is your friend here. From its help page example,
> x <- 1:10
> embed (x, 3)
[,1] [,2] [,3]
[1,]321
[2,]432
[3,]543
[4,]654
[5,]765
[6,]876
[7,]987
[8,] 1098
Applyi
sorry, the problem has been solved.
On Mon, Apr 25, 2011 at 11:28 PM, ivan wrote:
> Dear Community,
>
> I have a dataframe like this one:
>
> A B
> 5 1
> 6 1
> 7 1
> 8 1
> 9 2
> 10 2
> 11 2
> 12 2
>
> I have a problem splitting up the above data
On 2011-04-25 13:07, Hadley Wickham wrote:
If you need plyr for other tasks you ought to use a different
class for your date data (or wait until plyr can deal with
POSIXlt objects).
How do you get POSIXlt objects into a data frame?
df<- data.frame(x = as.POSIXlt(as.Date(c("2008-01-01"
str
Dear Community,
I have a dataframe like this one:
A B
5 1
6 1
7 1
8 1
9 2
10 2
11 2
12 2
I have a problem splitting up the above data frame in respect to the
factor represented by B, whereas the resulting vector should contain
the numeric values
On Mon, Apr 25, 2011 at 12:53:40PM -0700, Lisa wrote:
> Dear All,
>
> I just want to remove “NA” from the levels of a factor. For example:
>
> d<-data.frame(matrix(c("ww","ww","xx","yy","ww","yy","xx","yy","NA"),
> ncol=3, byrow=TRUE))
>
> > factor(d[, 3], exclude=NA)
> [1] xx yy NA
> Levels: N
Dear useRs,
Rook is a new package that does three things:
- It provides a way to run R web applications on your desktop with the
new internal R web server named Rhttpd. Please see the Rhttpd help page.
- It provides a set of reference classes you can use to write you R
web applications. The
On 4/25/2011 1:07 PM, Hadley Wickham wrote:
If you need plyr for other tasks you ought to use a different
class for your date data (or wait until plyr can deal with
POSIXlt objects).
How do you get POSIXlt objects into a data frame?
df<- data.frame(x = as.POSIXlt(as.Date(c("2008-01-01"
st
Thank you for your reply again. I really know that NA is not "NA". I just
want to figure out how to remove "NA" from the levels. Thanks again.
--
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Sent from the R help mailing list archive at Nabble.
Yes... did you understand that NA is not equal to "NA"?
Best,
Ista
On Mon, Apr 25, 2011 at 4:31 PM, Lisa wrote:
> Did you see the data frame "d"? Thanks.
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/Factor-function-tp3473984p3474065.html
> Sent from the R help mailing
Did you see the data frame "d"? Thanks.
--
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Sent from the R help mailing list archive at Nabble.com.
__
R-help@r-project.org mailing list
https://stat.eth
Hello!
I wrote a piece of code below that does the job but seems too "loopy" to me.
I was wondering if there is any way to make it more efficient/less "loopy"?
Thanks a lot for your hints!
Dimitri
### Creating example data set:
mygroups<-c(rep("group1", 8),rep("group2", 8))
myweeks<-seq(as.Date("
Hi!
Try to read about the glm function, type:
?glm
in your R editor. It looks like you have contingency tables, maybe a
loglin model would be good to start with.
D
2011-04-25 12:28 keltezéssel, Megan írta:
Hello,
I am trying to run a generalized linear model but do not know where to
begin
Am 25.04.2011 21:28, schrieb Megan:
Hello,
I am trying to run a generalized linear model but do not know where to
begin. I have attached my data to R but do not know where to go from there.
I have two independent variables (each has two factors associated with them)
What do you mean by this? Y
Hi Lisa,
NA != "NA"
The first represents a missing observation, the second represents a
character string.
HTH,
Ista
On Mon, Apr 25, 2011 at 3:53 PM, Lisa wrote:
> Dear All,
>
> I just want to remove “NA” from the levels of a factor. For example:
>
> d<-data.frame(matrix(c("ww","ww","xx","yy"
Hi together,
thank you so much for your help! The problem was indeed the
strptime-function. Replacing that with as.Date solves the problem,
both in the example I provided and in my actual data set.
I think this is a lesson for me to not use types I'm not really
familiar with (POSIXlt in this case
Dear All,
I just want to remove “NA” from the levels of a factor. For example:
d<-data.frame(matrix(c("ww","ww","xx","yy","ww","yy","xx","yy","NA"),
ncol=3, byrow=TRUE))
> factor(d[, 3], exclude=NA)
[1] xx yy NA
Levels: NA xx yy
But “NA” is still listed in the levels. How can I solve this prob
Dear all,
I want to let R automatically download available files from a website in
certain folders. Since the files I need, if exist, are in a certain
directory, I used download.file() function with a predesigned directory.
However, some of the folders do not have the file I want. When this occu
Hello,
I am trying to run a generalized linear model but do not know where to
begin. I have attached my data to R but do not know where to go from there.
I have two independent variables (each has two factors associated with them)
and two dependent variables, each with either a yes/no response whi
Hello, i got this package from the paper:" Nonparametric Covariance Function
estimation for Functional and Longitudinal data".
http://stat.wharton.upenn.edu/~tcai/paper/html/Covariance-Function.html.
Thanks lot!
--
View this message in context:
http://r.789695.n4.nabble.com/Help-needed-tp3464470p
> If you need plyr for other tasks you ought to use a different
> class for your date data (or wait until plyr can deal with
> POSIXlt objects).
How do you get POSIXlt objects into a data frame?
> df <- data.frame(x = as.POSIXlt(as.Date(c("2008-01-01"
> str(df)
'data.frame': 1 obs. of 1 va
On 4/25/2011 11:55 AM, William Dunlap wrote:
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of Brian Diggs
Sent: Monday, April 25, 2011 11:05 AM
To: christoph.jaec...@wi.tum.d
thank you very much. worked great for me.
On Mon, Apr 25, 2011 at 8:22 PM, Peter Ehlers wrote:
> On 2011-04-25 10:58, ivan wrote:
>>
>> Dear Community,
>>
>> I have a matrix with assigned colnames and rolnames as follows:
>>
>> A B
>> NR 0.15 0,05
>> AL 0,05
Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com
> -Original Message-
> From: r-help-boun...@r-project.org
> [mailto:r-help-boun...@r-project.org] On Behalf Of Brian Diggs
> Sent: Monday, April 25, 2011 11:05 AM
> To: christoph.jaec...@wi.tum.de
> Cc: r-help@r-project.org
> Subj
dqdawo is an IMSL routine which is similar to QUADPACK's dqawo. (The initial d
is for double precision),
and maybe similar to NAG's d01anf.
If you search for 'imsl qdawo' you should find some more description.
On the other hand, the error messages may give someone enough information to
help you
On 2011-04-25 10:58, ivan wrote:
Dear Community,
I have a matrix with assigned colnames and rolnames as follows:
AB
NR0.15 0,05
AL 0,05 0,05
. ..
. ..
. ..
I want to extract the names o
Russ Abbott wrote:
Hi all,
I would appreciate some help in understanding how to find out about objects.
For example, to the extent that I understand R it seems to treat everything
as an object even without declaring them as objects.
That's correct.
Everything has
attributes, for example, wh
On 2011-04-25 10:19, Christoph Jäckel wrote:
Hi Together,
I have a problem with the plyr package - more precisely with the ddply
function - and would be very grateful for any help. I hope the example
here is precise enough for someone to identify the problem. Basically,
in this step I want to id
Thanks, Matt!
"\x20" works great for me!
Am 25.04.2011 um 19:42 schrieb Matt Shotwell:
> I may have misread your original email. Whether you use a hex escape or
> a space character, the resulting string in memory is identical:
>
>> identical("a\x20b", "a b")
> [1] TRUE
>
> But, if you were to r
On 4/25/2011 10:19 AM, Christoph Jäckel wrote:
Hi Together,
I have a problem with the plyr package - more precisely with the ddply
function - and would be very grateful for any help. I hope the example
here is precise enough for someone to identify the problem. Basically,
in this step I want to
Dear Community,
I have a matrix with assigned colnames and rolnames as follows:
AB
NR0.15 0,05
AL 0,05 0,05
. ..
. ..
. ..
I want to extract the names of the rows for which A>0,1 and B<0,1
On Mon, Apr 25, 2011 at 04:37:15PM +0200, Jan van der Laan wrote:
> There exists a non-breaking space:
>
> http://en.wikipedia.org/wiki/Non-breaking_space
>
> Perhaps you could use this. In R on Linux under gnome-terminal I can
> enter it with CTRL+SHIFT+U00A0. This seems to work: it prints as a
I may have misread your original email. Whether you use a hex escape or
a space character, the resulting string in memory is identical:
> identical("a\x20b", "a b")
[1] TRUE
But, if you were to read a file containing the six characters "a
\x20b" (say with readLines), then the six characters would
Hi all,
I would appreciate some help in understanding how to find out about objects.
For example, to the extent that I understand R it seems to treat everything
as an object even without declaring them as objects. Everything has
attributes, for example, which are like instance variables in objects
Eric -
As others have said, you should change the names of the variables
in the data frames before you merge them. Here's one implementation
of that idea:
DF.wave.1 <- data.frame(id=1:10,var.A=sample(letters[1:4],10,TRUE))
DF.wave.2 <- data.frame(id=1:10,var.M=sample(letters[5:8],10,TR
You can embed hex escapes in strings (except \x00). The value(s) that
you embed will depend on the character encoding used on you platform. If
this is UTF-8, or some other ASCII compatible encoding, \x20 will work:
> "foo\x20bar"
[1] "foo bar"
>
For other locales, you might try charToRaw(" ") to
Hi Together,
I have a problem with the plyr package - more precisely with the ddply
function - and would be very grateful for any help. I hope the example
here is precise enough for someone to identify the problem. Basically,
in this step I want to identify observations that are identical in
terms
Is there anyone out there who can suggest a way to solve this problem?
Thanks,
Esben
On Sun, Apr 24, 2011 at 8:53 PM, Jeff Newmiller
wrote:
> Merge only lets you combine two tables at a time, but it does have a
> "suffix" argument that is intended to address your concern, but only for
> variable
On 25/04/2011 1:03 PM, Duncan Murdoch wrote:
On 25/04/2011 12:51 PM, Jaimin Dave wrote:
> I tried using char ** but it is printing some random string.
str is a pointer to an array of pointers to strings. That's what char**
means. So you need to declare it that way, and use it that way.
This
On 25/04/2011 12:51 PM, Jaimin Dave wrote:
I tried using char ** but it is printing some random string.
str is a pointer to an array of pointers to strings. That's what char**
means. So you need to declare it that way, and use it that way.
This works for me:
File test.c:
void test(char *
I tried using char ** but it is printing some random string.
On Sat, Apr 23, 2011 at 6:08 PM, Duncan Murdoch wrote:
> On 11-04-23 7:04 PM, Jaimin Dave wrote:
>
>> Hi,
>> I am using a function which accepts the string from R and prints it.
>> But when I am calling .C("main","hello");
>> it is prin
On 25/04/2011 7:54 AM, Duncan Murdoch wrote:
On 25/04/2011 5:46 AM, Mark Heckmann wrote:
> Hi all,
>
> How can I tell RGL to set the center for the rotation to the origin of the
coordinate system (0,0,0).
> It seems that the default is to use the center of the display not the origin
of the
Hi all:
I'm using grid to create a layout in R that will include text mixed with
graphics. In the layout, the positions of certain graphical elements depend on
the number of lines in adjacent text blocks (which will vary from case to
case). I was hoping to use grid's built in functions to aut
Hi useRs,
I have a set of fortran code that was passed down from previous students, and I
am converting its algorithm into R codes.
I encounter this function in Fortran (D)QDAWO, which numerically integrates a
function f with a user-specified cosine or sine weight. It is used because the
origi
On Apr 25, 2011, at 10:53 AM, kmatthews wrote:
Thanks to everyone... this helps a lot. Just a quick question about
etiquette in this forum (as it my first time questioning)... are
notes of
gratitude usually given in these forums?
The practice varies, some people do appreciate it. Doing so
You've done a lot of good work on this. Yes I would say you have moderate
overfitting with the first model. The only thing that saved you from having
severe overfitting is that there seems to be a signal present [I am assume
this model is truly pre-specified and was not developed at all by lookin
Still I haven't had any luck yet.
How about defining new function and its domain, is it somehow possible?
Like this:
a<-function(x) x beolongs to natural numbers <0,100>
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On Mon, 25 Apr 2011, Mark Heckmann wrote:
I use a function that inserts line breaks ("\n" as escape sequence)
according to some criterion when there are blanks in the string. e.g.
"some text \nand some more text".
What I want now is another form of a blank, so my function will not
insert a ?
Thanks to everyone... this helps a lot. Just a quick question about
etiquette in this forum (as it my first time questioning)... are notes of
gratitude usually given in these forums?
On Wed, Apr 20, 2011 at 1:26 PM, jthetzel [via R] <
ml-node+3463799-950416470-231...@n4.nabble.com> wrote:
> Kevi
Dear Fukushima Shintaro,
please also reply to the person who asked the question (she or he might
not be subscribed to the mailing list). Additionally, please always
quote the original question. Other mailing list readers won't lerned
from an answer without corresponding question.
Thank you f
There exists a non-breaking space:
http://en.wikipedia.org/wiki/Non-breaking_space
Perhaps you could use this. In R on Linux under gnome-terminal I can
enter it with CTRL+SHIFT+U00A0. This seems to work: it prints as a
space, but is not equal to ' '. I don't know if there are any
difficulties
There exists a non-breaking space:
http://en.wikipedia.org/wiki/Non-breaking_space
Perhaps you could use this. In R on Linux under gnome-terminal I can
enter it with CTRL+SHIFT+U00A0. This seems to work: it prints as a
space, but is not equal to ' '. I don't know if there are any
difficulties
On Apr 25, 2011, at 14:52 , Kenn Konstabel wrote:
...
> means that Windows will activate StickyKeys(TM) which will make your
> keyboard useless until you restart the computer.
...or, apparently, press both shift keys simultaneously, whichever comes first.
Now, whoever decided that >CapsLock< sh
Dear r-help list members,
I'll be teaching a two-day introductory R workshop at McMaster University in
Hamilton, Ontario, on May 24 and 25. The workshop will largely be based on
materials from Fox and Weisberg, An R Companion to Applied Regression,
Second Edition (Sage, 2011). Further information
On 25/04/2011 9:13 AM, Mark Heckmann wrote:
I use a function that inserts line breaks ("\n" as escape sequence) according
to some criterion when there are blanks in the string.
e.g. "some text \nand some more text".
What I want now is another form of a blank, so my function will not insert a
”
---Begin inclusion --
I need some help to figure out what is the proper model in survival
analysis
for my data.
Subjects were randomized to 3 treatments in trial 1, some of them
experience
the event during the trial;
After period of time those subjects were randomized to 3 treatments
again in
trial
I use a function that inserts line breaks ("\n" as escape sequence) according
to some criterion when there are blanks in the string.
e.g. "some text \nand some more text".
What I want now is another form of a blank, so my function will not insert a
\n" at that point.
e.g. "some text\spaceand so
On 25/04/2011 9:01 AM, Mark Heckmann wrote:
Is there a blank space escape sequence in R, i.e. something like \sp etc. to
produce a blank space?
You need to give some context. A blank in a character vector will be
printed as a blank, so you are probably talking about something else,
but what
Is there a blank space escape sequence in R, i.e. something like \sp etc. to
produce a blank space?
TIA
Mark
–––
Mark Heckmann
Blog: www.markheckmann.de
R-Blog: http://ryouready.wordpress.com
__
R-help@r-project.org
I have the same problem - it's happened before and then just fixed itself. But
rather annoying.
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Thomas Lumley
Sent: 23 April 2011 00:34
To: Stephen P Molnar
Cc: R-help
Subject: Re:
Dear R-community,
I am currently replicating a study and obtain mostly the same results as the
author. At one point, however, I calculate marginal effects that seem to be
unrealistically small. I would greatly appreciate if you could have a look at
my reasoning and the code below and see if I a
Hello.
> Is it possible to determine time delay with other function's output or I
> can choose any random value?
There are several ways to estimate time delay in chaotic time series
analysis.
Please refer to the book "Nonlinear time series analysis" by Holger Kantz
and Thomas Shreiber.
http://ww
On Mon, Apr 25, 2011 at 4:22 AM, Jim Lemon wrote:
> On 04/24/2011 08:13 AM, derek wrote:
>>
>> Thank you very much. It was the Insert key. It was very annoying. Actually
>> is
>> this owerwrite function of any use?
>>
> Hi derek,
> As Duncan mentioned, it is very useful when one wishes to type ove
So the first few posts show that I found out how to
get Java functions to return type double numbers to R.
The arrays are still a problem.
Here is another of my attempts to understand how to get java arrays into R.
The Java code in class CalqsLin for an array
of constants named conArr and for a
Depending on what else you're writing around the %, you might consider
using the latexTranslate() function in Hmisc.
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
On Behalf Of viostorm
Sent: Sunday, April 24, 2011 8:48 AM
To: r-help@r-project.o
On 25/04/2011 5:46 AM, Mark Heckmann wrote:
Hi all,
How can I tell RGL to set the center for the rotation to the origin of the
coordinate system (0,0,0).
It seems that the default is to use the center of the display not the origin of
the coordinate system.
open3d()
lines3d(c(0, 1), c(0,0), c
2011/4/25 Gonçalo Ferraz :
> Hi, I have a string
>
> "InTrouble"
>
> and want to extract, say, the first two characters: "In"
> or the last three: "blee"
> or the 3rd, 4th, and 5th: "Trou"
>
> Is there an easy way of doing this quickly with regular expressions in gsub,
> grep or similar?
>
strapp
Never mind, I find a generic solution:
require(reshape)
melted<-melt(dataframe, id=c("id","f1","f2"))
averaged=cast(melted,id+f1~variable,mean)
which collapses away "f2", and it's easy to generalize this to collapse
any factors.
Thanks anyway
Gordon
On 4/25/11 6:14 AM, Kenneth Roy Cabrera Torre
Hi Junquian:
I try your code (there is a typo, I believe)
a<-rnorm(6)
b<-rnorm(9)
f1<-c("x1","x2","x3")
f2<-c("y1","y2")
id<-c(1:6)
a_df<-data.frame(cbind(id,f1,"y1",a))
id<-c(1:9)
b_df<-data.frame(cbind(id,f1,"y2",b))
But I don't understand the "nested" databases.
I see that both have f1 variab
On Apr 25, 2011, at 12:15 , derek wrote:
> Richard,
>
> that way I will have to write functions manually and that is not possible
> for large number of functions.
>
Well do what he means:
fv <- vector("list",10)
for (i...
{
...
fv[[i]] <- ...
...
}
(Your code still won't work as writt
Richard,
that way I will have to write functions manually and that is not possible
for large number of functions.
derek
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View this message in context:
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Sent from the R help mailing list archive at Nabble.com.
__
On Apr 25, 2011, at 6:17 AM, Gonçalo Ferraz wrote:
Hi, I have a string
"InTrouble"
and want to extract, say, the first two characters: "In"
or the last three: "blee"
or the 3rd, 4th, and 5th: "Trou"
Is there an easy way of doing this quickly with regular expressions
in gsub, grep or simila
On 04/25/2011 08:17 PM, Gonçalo Ferraz wrote:
Hi, I have a string
"InTrouble"
and want to extract, say, the first two characters: "In"
or the last three: "blee"
or the 3rd, 4th, and 5th: "Trou"
Is there an easy way of doing this quickly with regular expressions in gsub,
grep or similar?
Hi
will this do it:
> x <- "InTrouble"
> sub("^(..).*", "\\1", x) # first two
[1] "In"
> sub(".*(...)$", "\\1", x) # last three
[1] "ble"
> sub("^..(...).*", "\\1", x) # 3rd,4th,5th char
[1] "Tro"
>
2011/4/25 Gonçalo Ferraz :
> Hi, I have a string
>
> "InTrouble"
>
> and want to extract, say, t
Hi, I have a string
"InTrouble"
and want to extract, say, the first two characters: "In"
or the last three: "blee"
or the 3rd, 4th, and 5th: "Trou"
Is there an easy way of doing this quickly with regular expressions in gsub,
grep or similar?
Thank you for any help.
Gonçalo
__
On Sun, Apr 24, 2011 at 07:00:26PM -0400, Shane Phillips wrote:
> Hi, R-Helpers!
>
> I have a dataframe that contains a binomial variable. I need to add another
> random variable drawn from a normal distribution with a specific mean and
> standard deviation. This variable also needs to be corr
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