On Sun, Apr 18, 2010 at 7:26 AM, steven mosher wrote:
> Ya I got that result but fixing it was a mystery. especially since I will
> eventually want to subtract the row max from the row Min ( or calculate the
> range)
> if a matrix thus is:
>
> [,1] [,2] [,3]
> [1,] NA NA NA
> [2,] 2
Le vendredi 16 avril 2010 à 00:15 -0800, Kay Cichini a écrit :
> thanks thierry,
>
> i considered this transformations already, but variance is not stabilized
> and/or normality is neither achieved.
> i guess i'll have to look out for non-parametrics?
Or (maybe) a model based on a non-Gaussian li
I've been using RGenoud for a while and it worked smoothly so far. However I
came across a strange problem lately (for me at least...).
It fails after the first individual and I get the following error message
when I set MemoryMatrix = FALSE :
Error in genoud(fn, nvars = 8, max = TRUE, pop.size
Hello,
I would like to create all combinations of vectors. I find on Matalb this
function 'combvec' which create all combinations of vectors.
Please could you help me to find the corresponds function of 'combvec'.
For example:
On Matlab
>> a1 = [1 2 3; 4 5 6]
a1 =
1 2 3
Given an ordered factor, how does one unorder it?
I tried various commands with reorder, with order=F, but they all gave me
error messages. I also tried to drop the order with various 'as dot
something' commands, but these didn't work either.
--
View this message in context:
http://n4.nabble.com
Hi,
It might be a simple question but how to load all data sets of a package? It's
possible to get the list of data sets in a package with
v= data(package = package_name)
v[3]$results[,3]
but data(get(v[3]$results[,3])) doesn't work.
Thanks
Carol
_
Yihui Xie wrote:
> This is an announcement of the release of an R package 'formatR',
> which can help us format our R code to make it more human-readable. If
> you have ugly (I mean unformatted) R code like this:
>
> # rotation of the word "Animation"
> # in a loop; change the angle and color
> #
Hi,
I could finally create an R package. I was suprised to notice that when I want
to update a function, even if it is updated in package_name/R/function.R and
after build but it is not updated when the package is loaded. I see that the
tar.gz file is updated but when I load the package, I get t
On Apr 18, 2010, at 6:03 AM, David.Epstein wrote:
Given an ordered factor, how does one unorder it?
I tried various commands with reorder, with order=F, but they all
gave me
error messages. I also tried to drop the order with various 'as dot
something' commands, but these didn't work either
SQLite and H2. These databases are included right in the driver
packages RSQLite and RH2 so there is nothing extra to install except
you must have Java installed in the case of H2. Also both are
supported by sqldf.
On Sun, Apr 18, 2010 at 12:56 AM, kMan wrote:
> Dear list,
>
> What are the cros
On Apr 18, 2010, at 7:55 AM, David Winsemius wrote:
On Apr 18, 2010, at 6:03 AM, David.Epstein wrote:
Given an ordered factor, how does one unorder it?
I tried various commands with reorder, with order=F, but they all
gave me
error messages. I also tried to drop the order with various 'a
On Sun, 18 Apr 2010, Brian Lunergan wrote:
Yihui Xie wrote:
This is an announcement of the release of an R package 'formatR',
which can help us format our R code to make it more human-readable. If
you have ugly (I mean unformatted) R code like this:
# rotation of the word "Animation"
# in a l
R-listers,
I am using xts with a yearmon index, but am getting some inconsistent
results with the date index when i drop observations (for example by using
na.omit).
The issue is illustrated in the example below. If I start with a monthly
zooreg series starting in 2009, yearmon converts this to
The package is climatol.
The data I'm working with looks like the following
10 20 30 40 50 60 70. 360
0-10 159 241386495 599 821 874153
10-20 96 481815 1223 1165 856 529..31
20-30 77 3876407403
Hello,
I am very new to R and data analysis in general.
I am trying to generate values to append to my data frame using
conditional statements.
I am playing with this simple example:
a <- c(1:4)
b <- c("meep", "foo", "meep", "foo")
d <- cbind(a, b)
now what I want to do is , each time there is a
On Sun, Apr 18, 2010 at 8:25 AM, simeon duckworth
wrote:
> R-listers,
>
> I am using xts with a yearmon index, but am getting some inconsistent
> results with the date index when i drop observations (for example by using
> na.omit).
>
> The issue is illustrated in the example below. If I start wi
Hi! All,
I am working on a dataset 'rat' with dimension 20500x363. I have
calculated pca of samples (columns). Now I am trying to plot first two
principle components with specified columns in different color. I have
done following so far:
> dim(rat)
[1] 20500 363
>#specifying columns to be colo
You are working with a matrix, so the "$" operator is not allowed (e.g.,
d$c).
Also in your test, you have to test against the second column (e.g., d[i,
2])
try this:
> a <- c(1:4)
> b <- c("meep", "foo", "meep", "foo")
> d <- cbind(a, b)
>
>
> for(i in seq(along=d[,2])) {if (d[i,2]=="meep") { p
Hey Laura,
Just to add a cautionary note, in
> a <- c(1:4)
> b <- c("meep", "foo", "meep", "foo")
> d <- cbind(a, b)
d is a matrix and will only be one type of matrix. Since you have
both integer (a) and character (b) data, it has to be at the character
level. From the help for cbind:
"The t
Thank you so much all!
How a simple problem can get complicated by not having enough
knowledge, but hopefully I am learning
Have a great Sunday!
L
On Sun, Apr 18, 2010 at 4:56 PM, jim holtman wrote:
> You are working with a matrix, so the "$" operator is not allowed (e.g.,
> d$c).
>
> Also in
Henrik,
Thanks! I was just recommending the package to another fellow who is
learning R as I am. I was going crazy. Jorge gave me a solution that works,
however the data set I'm working with is huge so I'm hoping that switching
to your package will give both readability and performance improveme
Where do I nominate this to be a fortune ?
Q (Karl Ove Hufthammer ): Why not use 'predict.loess' (i.e., 'predict' on a
loess object) directly?
A (Greg Snow): Because that would be simple, straight forward, and make
sense, and not require knowledge about less obvious functions.
Although for the p
Dear very helpful friends,
It is Sunday, there is no air traffic in Europe, what better to do
than try and learn me some more R.
I have the following example:
owner <- c(1:4)
animal <- c("cat", "dog", "cat", "dog")
char.1 <- c("fluffy", "playful", "mean", "stupid")
food <- c("cat food", "left-ove
On Sun, 18 Apr 2010, carol white wrote:
Hi, I could finally create an R package. I was suprised to notice that
when I want to update a function, even if it is updated in
package_name/R/function.R and after build but it is not updated when the
package is loaded. I see that the tar.gz file is up
On 18.04.2010 13:52, carol white wrote:
Hi,
I could finally create an R package. I was suprised to notice that when I want
to update a function, even if it is updated in package_name/R/function.R and
after build but it is not updated when the package is loaded. I see that the
tar.gz file is
I have an R file R_test.R saved in C:\R_test folder. The R_test.R looks like
this:
setwd("C:/R_test")
rnorm(100)
write(rnorm(100),"data.txt")
q(save="no", runLast = F)
Next I would like use an Excel VBA/macro Shell() function to call R and
execute R_test.R file. The syntax is *Shell(pathname*[
Please contact the package maintainer.
Uwe Ligges
On 18.04.2010 11:09, yoda55 wrote:
I've been using RGenoud for a while and it worked smoothly so far. However I
came across a strange problem lately (for me at least...).
It fails after the first individual and I get the following error messag
Hello.
I have data of potatoes production in EU during 1998-2009 from EuroStat
where the first column consists of the names of EU countries, the following
columns consists of appropriate data in each year.
Let's say, I investigate Lithuania. For example, I have a row containing
potatoes producti
Gabor, Charles, Whit -- i've been walking the woods of R alone so far, and i
got to say that your replies to that trivial question are eye-opening
experience for me. Gentlemen, what i am trying to say in a roundabout way is
that i am extremely grateful and that you guys are frigging awesome.
Let
On 18/04/2010 7:52 AM, carol white wrote:
> Hi,
> I could finally create an R package. I was suprised to notice that when I
want to update a function, even if it is updated in
package_name/R/function.R and after build but it is not updated when the
package is loaded. I see that the tar.gz file is u
On 13/04/2010 8:50 AM, Duncan Murdoch wrote:
> On 12/04/2010 7:14 PM, Kuhn, Alexandre (NIH/NIA/IRP) [V] wrote:
>> Hi,
>>
>> source(file,echo=T) will not echo the last comment in "file" if it is the
last line in the file.
>> For instance, when sourcing a file containing the following lines
>>
>> #co
I am using R and I input data through excel files. I am able to read the excel
files into R through xlsreadwrite package.
My query: is how to tell the sample period of the data.
For example, data in my file are annual and start from the year 1950 and go up
to the year 2010.
the R, however, reads
I would prefer version 1.
Version to creates a global variable R which you do not really need
since it contains the same values as d$r.
In option 2, you should probably remove the variable r itself
after it has been appended to d.
On 4/18/2010 5:23 PM, Laura Ferrero-Miliani wrote:
> Thanks for co
On 18.04.2010 12:59, carol white wrote:
Hi,
It might be a simple question but how to load all data sets of a package? It's
possible to get the list of data sets in a package with
v= data(package = package_name)
v[3]$results[,3]
but data(get(v[3]$results[,3])) doesn't work.
See ?data that t
On 18.04.2010 15:46, Amit wrote:
Hi! All,
I am working on a dataset 'rat' with dimension 20500x363. I have
calculated pca of samples (columns). Now I am trying to plot first two
principle components with specified columns in different color. I have
done following so far:
dim(rat)
[1] 20500
thanks so much for your reply, Gabor!
actually, my intention is to rsqlite to submit sql into sqlite db from
r and utilize temp tables in sqlite to store the working tables. in
this way, there is not much computing burden and memory consumption in
r.
however, the functions natively supported in sql
Hi all,
I am trying to call the R script/ R Program via my Shell Script. I need to
pass a file to the R script as an argument. When I am trying to do that I am
getting error and only first line of the file is being read. Can you tell me
how should I do that so that it reads the entire file in a R
On 16.04.2010 16:54, yehengxin wrote:
I wonder how to further improve the optimization level of gcc. I thought
"O-3" has already been the best.
If you want to incerease that, don't forget to run checks in order not
to get numerical inaccuracies.
Uwe Ligges
__
Sorry, I was thinking about GTK+ and RGtk2, then they got mixed up in
my mind to the strange animal "RGtk+"...
I noticed a few users had troubles with installing RGtk2, so I removed
the strict dependence on 'gWidgetsRGtk2' in the next version of
'formatR' (0.1-4). Users can specify other types of
Please see the manuals
On 16.04.2010 16:11, yehengxin wrote:
Thank you very much for your kind explanation. I did find my DLL compiled
using either VC++ 6.0 or Intel Compiler (almost equally fast) is
significanlty faster than that compiled using gcc (55 seconds vs. 78
seconds), the default com
Looks like the rank function in R takes up most of the time.
Replacing it with a sum reduces the time of the rollapply solution to
one sixth of the its original time:
> system.time(rollapply(z,len, function(x) rank(x)[len]))
user system elapsed
17.000.27 17.27
> system.time(rollapply(z
Amit, how to color or label your pca plot has been answered before. Look at
this post: http://n4.nabble.com/PCA-analysis-td861508.html#a861509
As for your problem, it's hard to say what went wrong without having the
data. You write, there is nothing plotted in the graph. Does that mean you
get a g
On 16.04.2010 08:24, Dieter Menne wrote:
Samuel Bravo wrote:
I'm working on a very large project in which we do many calculations which
include many types of regression such as, Liner, Quadratic, Cubic,
Exponential, Sinusoidal, and Logarithmic.
Students are often looking at the wrong pl
On Sun, Apr 18, 2010 at 1:00 PM, Gabor Grothendieck
wrote:
> SQLite and H2. These databases are included right in the driver
> packages RSQLite and RH2 so there is nothing extra to install except
> you must have Java installed in the case of H2. Also both are
> supported by sqldf.
Plain old .R
I am wondering if there is a pattern in the rest of your data. I made
a table based on the data you provided, using 0s for degrees 80-350,
and it plots fine. If your data only changed slightly from section to
section (lets say by 4 or 5) it might be hard to tell that it is
actually different on t
Hi Gabor
Thats odd. I still get the same problem with the same versions of the
software in your mail ... viz "as.yearmon" converts 2009(1) to "Dec-2008"
and although xts is indexed at "Jan 2009" in xx, using it to create another
xts object with that index reverts to "Dec-2008".
grateful for any s
Would:
?merge
Work for you ?
Contact
Details:---
Contact me: tal.gal...@gmail.com | 972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
---
Don't you use package.skeleton to add functions or data to an existing package?
Othewise, what is the safer way?
You should never have to run package.skeleton more than once per package, and
it could be harmful to do so, because you are expected to make changes to the
skeleton after it is cr
Maybe:
*?expand*.*grid*
And:
?combn
?
Contact
Details:---
Contact me: tal.gal...@gmail.com | 972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
--
On Sun, 18 Apr 2010, zerdna wrote:
Gabor, Charles, Whit -- i've been walking the woods of R alone so far, and i
got to say that your replies to that trivial question are eye-opening
experience for me. Gentlemen, what i am trying to say in a roundabout way is
that i am extremely grateful and tha
Please do provide data when submitting a question so we don't have to try to
recreate it from a brief description.
> pot <- data.frame(count=LETTERS[1:10], '1998'=runif(10), '1999'=runif(10),
+ '2000'=runif(10), '2001'=runif(10), check.names=FALSE,
stringsAsFactors=FALSE)
> pot
count
On Sun, Apr 18, 2010 at 2:51 PM, simeon duckworth
wrote:
> Hi Gabor
>
> Thats odd. I still get the same problem with the same versions of the
> software in your mail ... viz "as.yearmon" converts 2009(1) to "Dec-2008"
We can`t conclude that its in as.yearmon based on the output shown.
What is the
Bump,
I am curious to know this one as well.
p.s: David. there is an interesting article on how to retrieve points from a
plot (any plot). I don't think it is the best way for a dendrogam , but in
case no one will offer a better solution, this one might work for you:
http://www.r-bloggers.com/get
Hi all,
How do I emulate:
right click (on image) -> stop
That is possible when using identify (in windows)?
For example, doing:
x11()
x = rnorm(20)
y = rnorm(20)
plot(x, y)
# identify 5 points
id = identify(x, y, n = 5, pos = TRUE)
picking a few points and then pressing "esc", would just cance
The site has a wiki and the wiki has a page
How to install
which should answer your question.
Furthermore, please subscribe to the rcom mailing list on our side
and post your questions regarding RExcel there.
On 4/16/2010 8:05 PM, KZ wrote:
> hmm, i could be a bit more computer savy. what do i s
Thanks, Peter. It works!
Hua
--- On Fri, 4/16/10, Peter Ehlers wrote:
> From: Peter Ehlers
> Subject: Re: [R] how to change the position of xlab in truehist?
> To: "Hua Li"
> Cc: r-help@r-project.org
> Date: Friday, April 16, 2010, 6:23 PM
> On 2010-04-16 16:00, Hua Li wrote:
> > Hi,
> >
> >
It sounds like your date column is a 'factor'. Please at least provide an
'str' of the data that you are using. You might want to read is in
suppressing the conversion to factors (not familar with the xlsreadwrite,
but read.table as an 'as.is' parameter).
On Sun, Apr 18, 2010 at 12:02 PM, Kapur,
... forgot to post this back to the r-list.
it seems that the problem is with xts rather than zoo and yearmon per se ie
using yearmon to index xts gives inconsistent results.
grateful for any help anyone can offer.
thanks
On Sun, Apr 18, 2010 at 8:15 PM, simeon duckworth wrote:
> Hi gabor
text format only.
--- On Sun, 4/18/10, Duncan Murdoch wrote:
> From: Duncan Murdoch
> Subject: Re: [R] update of a function
> To: "carol white"
> Cc: r-h...@stat.math.ethz.ch, murd...@stats.uwo.ca
> Date: Sunday, April 18, 2010, 12:22 PM
> On Sun, Apr 18, 2010 at 2:53 PM,
> carol white
> wrot
On Sun, Apr 18, 2010 at 3:40 PM, carol white wrote:
> text format only.
You just copy those into the data subdirectory, assuming you're using
one of the formats listed in the "Data in packages" section of Writing
R Extensions, and have named it as described there.
Duncan Murdoch
>
> --- On Sun,
But shouldn't they be with rda extension like other data sets in data folder?
--- On Sun, 4/18/10, Duncan Murdoch wrote:
> From: Duncan Murdoch
> Subject: Re: [R] update of a function
> To: "carol white"
> Cc: r-h...@stat.math.ethz.ch, murd...@stats.uwo.ca
> Date: Sunday, April 18, 2010, 12:48
On Sun, Apr 18, 2010 at 4:05 PM, carol white wrote:
> But shouldn't they be with rda extension like other data sets in data folder?
You can use text format or rda format. Read the manual.
Duncan Murdoch
>
> --- On Sun, 4/18/10, Duncan Murdoch wrote:
>
>> From: Duncan Murdoch
>> Subject: Re:
Christian,
Thank you for the response and hint. This is essentially what I ended up doing
but I ran into several problems using nls(). I have since switched to optim()
and seem to be having better luck. Again, thank you for your help.
> -Original Message-
> From: Christian Ritz [mail
Addendum to my previous answer :
In that special case, the limited range of the asin(sqrt())
transformation, which is a shortcoming, turns out to be useful. The
fixed-effect doefficients seem semi-reasonable (except for stageB) :
> (sin(coef(lm(asin(sqrt(MH.Index))~0+stage, data=similarity^2
Hello,
thank you for your Help.
I try this function 'combn' and 'expand. grid'. But, This function don't
give the same results with 'combvec'.
Best Regards
2010/4/18 Tal Galili
> Maybe:
>
> *?expand*.*grid*
> And:
> ?combn
>
>
> ?
>
> Contact
> Details:--
Hi,guys. i got a few questions about the R code during my self study of this
language. plz help me ^_^
for example,use the dataset Vanveer.4000 in library(MASS),
1.if i used the first 300 genes, how to find the single trees and random
forests by using R? And how to see their classification perfo
Thx. will do
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Sent from the R help mailing list archive at Nabble.com.
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
P
can anyone help me how to do a complete analysis of covariance in RBD?pls
help me...
--
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Sent from the R help mailing list archive at Nabble.com.
__
R-help@r-project.org m
Could you tell me a little more in details?
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Sent from the R help mailing list archive at Nabble.com.
__
R-help@r-project.org mailing l
On Sun, Apr 18, 2010 at 2:53 PM, carol white wrote:
>
> Don't you use package.skeleton to add functions or data to an existing
> package? Othewise, what is the safer way?
You can use prompt() to create the outline of the documentation page.
I would just copy the file containing a function's sour
Hi,
Thanks for the advice but now I am getting an error which states that the R
file/script cannot be opened. Also, my shell and R script is in an
executable mode.
My code is as follows:
#!/bin/bash
DataFile="input.txt"
RProgram="Debug5.R"
outputfile="output_perl_${I}${I}"
time R --slave -f ${
It was my understanding that .Rdata files were not very portable, and do not
natively handle queries. Otherwise we'd all just use .RData files instead of
farming the work out to SQL drivers & external libraries, and colleagues who
use, e.g. SAS or SPSS would also have no trouble with them.
Sincere
Hello,
I'm using var.test to do a simple F-test for equality of variances. I think
I'm missing something small here:
> m<-rnorm(10,sd=1)
> n<-rnorm(5,sd=1)
> var.test(m,n)
F test to compare two variances
data: m and n
F = 13.7438, num df = 9, denom df = 4, p-value = 0.02256
alternative hyp
CRAN (and crantastic) updates this week
New packages
Updated packages
BSDA (1.0)
New reviews
---
* ggplot2, by elaliberte
http://crantastic.org/reviews/69
* FD, by elaliberte
http://crantastic.org/reviews/68
This email provided as a service for t
Hi:
Here's a simple, manufactured example:
x <- rnorm(61)
x <- ts(x, start = 1950, end = 2010)
plot(x)
Is that what you were looking for?
HTH,
Dennis
On Sun, Apr 18, 2010 at 9:02 AM, Kapur, Muneesh wrote:
> I am using R and I input data through excel files. I am able to read the
> excel file
This might help:
http://www.jstatsoft.org/v28/i05/paper
Max
On Sun, Apr 18, 2010 at 1:24 PM, kevinzy wrote:
>
> Hi,guys. i got a few questions about the R code during my self study of this
> language. plz help me ^_^
>
> for example,use the dataset Vanveer.4000 in library(MASS),
>
> 1.if i u
Hello,
I am trying to cycle through a csv and make some summary statistics.
I need to select rows based on the number in the row name that comes
after the letter 'y'. For example, BA1y1 would equal 1, C3A2r3y1
would equal 1 and MA3r3y1r3 would equal 1.
I currently have my code cycling throug
Use regular expressions:
> x <- c( "BA1y1", "C3A2r3y1", "MA3r3y1r3", "MA23r34y123z99")
> # extact the number after the 'y'
> num <- sub(".*y(\\d +).*", "\\1 ", x)
>
> num
[1] "1" "1" "1" "123"
>
On Sun, Apr 18, 2010 at 8:41 PM, Daisy Englert Duursma <
daisy.duur...@gmail.com> wrote:
> Hel
If it is the script file, are you in the right directory. The error
indicates the system can not locate your program. Try typing it in by hand
and see what you get. You are probably not positioned where you think you
are.
On Sun, Apr 18, 2010 at 6:21 PM, Ayush Raman wrote:
> Hi,
>
> Thanks for
You can always write a script to do what you want. This will get you the
results you want.
> a1 <- rbind(1:3, 4:6)
> a2 <- rbind(7:8, 9:10)
> result <- NULL # initialize the output
> for (i in seq(ncol(a2))){
+ for (j in seq(ncol(a1))){
+ result <- cbind(result, c(a1[, j], a2[, i]))
Hi everyone,
I have written a script which exports my graphs as a PDF file using the
function pdf().
For instance, I run the script and it exports a PDF called "version 1".
Then, I have got a new dataset and want to run the script again. What it
usually does is overwriting "version 1". But I wa
Hi,
xtabs() creates a table of counts. I want a table of proportions -- that
is, I want to divide every vector (along a particular dimension) by its sum.
The tiny example below does that. The call to xtabs() creates a matrix "A"
with dimensions ("x1","x2","y"). I transform "A" using aperm() a
a little searching would have found:
?file.exists
On Sun, Apr 18, 2010 at 7:54 PM, chrisli1223 wrote:
>
> Hi everyone,
>
> I have written a script which exports my graphs as a PDF file using the
> function pdf().
>
> For instance, I run the script and it exports a PDF called "version 1".
> Then,
Yeah, it is in the right directory and I am sure about it.
Ayush
On Sun, Apr 18, 2010 at 8:58 PM, jim holtman wrote:
> If it is the script file, are you in the right directory. The error
> indicates the system can not locate your program. Try typing it in by hand
> and see what you get. You a
Hi:
Using the result of xtabs, use prop.table():
Example:
df <- data.frame (
x1 = ceiling( runif( 20 ) * 3 ),
x2 = ceiling( runif( 20 ) * 2 ),
y = round( runif( 20 ) )
)
# Get different numbers since your random seed was not specified...
(w <- with(df, xtabs(~ y + x1 + x2)))
Problem solved. I combined file.exists and while loop to create version
number. Thank you very much for your help.
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On Apr 18, 2010, at 7:50 PM, Jeff Brown wrote:
Hi,
xtabs() creates a table of counts. I want a table of proportions --
that
is, I want to divide every vector (along a particular dimension) by
its sum.
?prop.table
The tiny example below does that. The call to xtabs() creates a
mat
As it turns out, there was something wrong with the way that the column and
row names were set up when the wind frequency table was made. As I
mentioned, the same data (all the data) was plotted 6 times around the
circle (rose plot). The way I've resolved this is by writing the data to a
.csv fil
Dear list,
I have gene expression measurements obtained by PCR on 11 genes,
tabulated as a data matrix.
I'm attempting to use GSA package to distinguish any significant changes
in these genes as a pathway.
My response variable is binary, 0=no disease, 1=disease.
I have read the PCR data in
I am a newbie package builder who successfully built a "Hello world" package
but am now having trouble building a package with S4 functionality. I
thought I would start by building a package consisting of just the first
example under the setGeneric help page in a "fresh" 2.10.0 (windows) console
(m
On Sun, Apr 18, 2010 at 11:30 PM, kMan wrote:
> It was my understanding that .Rdata files were not very portable, and do not
> natively handle queries. Otherwise we'd all just use .RData files instead of
> farming the work out to SQL drivers & external libraries, and colleagues who
> use, e.g. SAS
-Mensaje original-
De: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] En
nombre de Josh B
Enviado el: sábado, 17 de abril de 2010 0:12
Para: R Help
Asunto: [R] Scanning only specific columns into R from a VERY large file
Hi,
I turn to you, the R Sages, once again for
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