If you data file has 49M rows and 249 columns, then if each column had
5 characters, then you are looking at a text file with 60GB. If these
were all numerics (8 bytes per number), then you are looking at an R
object that would be almost 100GB. If this is your data, then this is
definitely a cand
jim holtman wrote:
> matplot(x,y)
>
>
Ah, thanks -- I got it working! Actually, I was getting a "must have
the same number of rows" error since x has the same number of columns as
y, but x itself is a single row. This worked for me when I transposed
y...which is ok for my problem:
matplot
Hi,
I apologize again for posting something not suitable on this list.
Basically, it sounds like I should go put this large dataset into a
database... The dataset I have had trouble with is the transportation
network of Chicago Consolidated Metropolitan Statistical Area. The
number of samples
matplot(x,y)
On 9/16/07, Raymond Wan <[EMAIL PROTECTED]> wrote:
>
> Hi all,
>
> I'm still a bit new to R and I'm trying to figure something out. I have
> the solution but the solution is what a C programmer would do :-) and I
> was wondering if someone could tell me the R way of doing it...
>
> W
Hi all,
I'm still a bit new to R and I'm trying to figure something out. I have
the solution but the solution is what a C programmer would do :-) and I
was wondering if someone could tell me the R way of doing it...
What I have is a vector x of length |x|. And a matrix y of size m rows
and
When you say you can not import 4.8GB, is this the size of the text
file that you are reading in? If so, what is the structure of the
file? How are you reading in the file ('read.table', 'scan', etc).
Do you really need all the data or can you work with a portion at a
time? If so, then consider
Hi,
I obviously did not include the subject title. I am looking for memory
management on a 64 bit machine.
Thank you.
TK
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https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-p
Hi,
Let me apologize for this simple question.
I use 64 bit R on my Fedora Core 6 Linux workstation. A 64 bit R has
saved a lot of time. I am sure this is a lot to do with my memory
limit, but I cannot import 4.8GB. My workstation has a 8GB RAM, Athlon
X2 5600, and 1200W PSU. This PC configura
Dear Listers,
I have a general statistical question. Are hurdle logit-poisson model
and posson model nested?
Thank you so much?
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PLEASE do read the posting guide http://www.
Try this:
df <- data.frame('1.test'=rnorm(100), '2.test'=runif(100), check.names=F)
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O
On 15/09/2007, kevinchang <[EMAIL PROTECTED]> wrote:
>
>
> Hey,
>
> I am trying to make a data frame and the name of a column is compos
Two corrections to my previous posting.
On Sat, 15 Sep 2007, Charles C. Berry wrote:
> On Sat, 15 Sep 2007, kevinchang wrote:
>
>>
>> Hi everyone,
>>
>> I am wondering if there is any built-in funcion that can determine whether
>> words in a character vector start with a captial letter or not. H
when I try what you describe there is no problem -maybe send a
reproducible example.
> x<-data.frame(matrix(2,2,2))
> colnames(x) <- c("1.xx", "2.xx")
> x
1.xx 2.xx
122
222
On Sat, 15 Sep 2007, kevinchang wrote:
>
> Hey,
>
> I am trying to make a data frame and the name of a c
Hey,
I am trying to make a data frame and the name of a column is composed of a
number, a dot, and a word, such as "1.whatever". But I always get this error
message:"syntax error, unexpected SYMBOL, expecting ',' in:" while printing
data frame out . When I rename the column with purely letter, ev
Dear list members,
I am analyzing Affymentrix gene expression data and would like to
apply the R package, VarSelRF to identifying small sets of genes that could
be used for diagnostic purpose.
Basically, the data matrix is composed of 22277 rows (genes) and 65 columns
(samples).
I did unsupervise
On Sat, 15 Sep 2007, kevinchang wrote:
>
> Hi everyone,
>
> I am wondering if there is any built-in funcion that can determine whether
> words in a character vector start with a captial letter or not. Help,
> please. Thanks.
Yes. But your query is not precise. See the posting guide and provide
c
On Sat, 2007-09-15 at 12:11 -0400, Letticia Ramlal wrote:
> Hello
> I was wonderinf if anyone can help me with this problem, it seems
> trivial but for some reason I can not figure it out.
>
> With a single R command complete the following:
> create a vector calles seqvec that repeats the sequen
On Sat, 2007-09-15 at 09:02 -0700, Gerard Smits wrote:
> Hi All,
>
> There are a variety of functions that can be applied to a variable
> (column) in a data frame: mean, min, max, sd, range, IQR, etc.
But one their own, these are not equivalents to rowMeans, rowSums etc
below.
>
> I am aware o
On Sat, 2007-09-15 at 09:02 -0700, Gerard Smits wrote:
> Hi All,
>
> There are a variety of functions that can be applied to a variable
> (column) in a data frame: mean, min, max, sd, range, IQR, etc.
>
> I am aware of only two that work on the rows, using q1-q3 as example
> variables:
>
> row
Wayne Aldo Gavioli wrote:
> Hello all,
>
> I was wondering if it was possible to pull out certain parts of an array in R
> -
> not an array of data that I have created, but an array of data that has been
> spit out by R itself.
>
> More specifically, in the lines of code below:
>
>
>> summar
Hello all,
I was wondering if it was possible to pull out certain parts of an array in R -
not an array of data that I have created, but an array of data that has been
spit out by R itself.
More specifically, in the lines of code below:
> summary(prcomp(USArrests))
Importance of components:
On Sat, 2007-09-15 at 12:11 -0400, Letticia Ramlal wrote:
> Hello
> I was wonderinf if anyone can help me with this problem, it seems trivial but
> for some reason I can not figure it out.
>
> With a single R command complete the following:
> create a vector calles seqvec that repeats the seque
Hello
I was wonderinf if anyone can help me with this problem, it seems trivial but
for some reason I can not figure it out.
With a single R command complete the following:
create a vector calles seqvec that repeats the sequence 1, 3,6, 10,15,21.( I
was trying to use c() but this does not work
At 12:02 PM 9/15/2007, Gerald wrote:
>Hi All,
>
>There are a variety of functions that can be applied to a variable
>(column) in a data frame: mean, min, max, sd, range, IQR, etc.
>
>I am aware of only two that work on the rows, using q1-q3 as example
>variables:
>
>rowMeans(cbind(q1,q2,q3),na.rm=T
Hi All,
There are a variety of functions that can be applied to a variable
(column) in a data frame: mean, min, max, sd, range, IQR, etc.
I am aware of only two that work on the rows, using q1-q3 as example
variables:
rowMeans(cbind(q1,q2,q3),na.rm=T) #mean of multiple variables
rowSums (cbi
?options
> options(max.print=10)
> 1:10
[1] 1 2 3 4 5 6 7 8 9 10
[ reached getOption("max.print") -- omitted 0 entries ]]
On 9/15/07, Abu Naser <[EMAIL PROTECTED]> wrote:
>
> Hi all user,
>
> Is there any way i can chage the print limit ( getOption("max.print")) to
> unlimite
One technique that I use (with POSIXct dates) is to convert the date
to numeric so that it can be stored in an array (which must have the
same mode for all variables) and then when I need it, just convert it
back as needed. Here is an example:
> x <- as.POSIXct("2007-09-15 13:25")
> x
[1] "2007-0
Garavito,Fabian a écrit :
> Hi there,
> I have an ixjxk array where I want to store dates in the first column of
> all sub-matrices (i.e. j=1 is a column with dates) and real numbers in
> the rest of the columns...I have been trying many things, but I am
> not getting anywhere.
> Thank you ve
L L wrote:
> I am new here. I would like to compare the performance of the random forest
> model with support vector machine. Can anybody let me know how to generate
> a ROC curve for random forest model since there is no need to run the
> cross-validation. Thank you very much!
The ROCR packa
High all, I would appreciate input about how the following survival model
can be modeled in R and how competing risk models can generally be modeled.
Also I would appreciate hints about resources that you are aware of that
explain the use of survival models in R in greater detail.
The data struct
Hi,
I am new here. I would like to compare the performance of the random forest
model with support vector machine. Can anybody let me know how to generate
a ROC curve for random forest model since there is no need to run the
cross-validation. Thank you very much!
TL
_
Hi there,
I have an ixjxk array where I want to store dates in the first column of
all sub-matrices (i.e. j=1 is a column with dates) and real numbers in
the rest of the columns...I have been trying many things, but I am
not getting anywhere.
Thank you very much for your help,
Fabian
Thi
Hi,
the predict.rpart() function from the rpart library allows for
calculating the class probabilities for a given test case instead of a
discrete class label.
How are these class probabilities derived? Is it simply the proportion
of the majority class to all cases in a leaf node?
Thanks in a
Check out:
https://stat.ethz.ch/pipermail/r-help/2007-August/137742.html
On 9/15/07, christophe vuadens <[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> Sorry for my english, in a R function, I want to read HTML files to analyse
> the text. Do somebody now, how can i read the text only in txt Foirmat..
On 15-Sep-07 10:21:19, kevinchang wrote:
>
> Hi everyone,
>
> I am wondering if there is any built-in funcion that can
> determine whether words in a character vector start with
> a captial letter or not. Help, please. Thanks.
Something like:
C<-c("Abc", "aBc", "abC")
for(i in (1:length(C))){
kevinchang a écrit :
> I am wondering if there is any built-in funcion that can determine whether
> words in a character vector start with a captial letter or not. Help,
> please. Thanks.
DIY with tolower().
apply tolower() on 1st letter and compare.
__
Hi everyone,
I am wondering if there is any built-in funcion that can determine whether
words in a character vector start with a captial letter or not. Help,
please. Thanks.
--
View this message in context:
http://www.nabble.com/starting-with-a-capital-letter-tf4447302.html#a12689105
Sent from
Hi all user,
Is there any way i can chage the print limit ( getOption("max.print")) to
unlimited or specified limit?
Thanks in advance
_
Feel like a local wherever you go.
__
R-help@r-pr
See http://cran.r-project.org/bin/linux/redhat/el5/i386/
The ReadMe there says they should work on RHEL5.
I've not used RHEL5, but have a little experience with Centos5, where R
builds from the tarball without any problems at all.
On Sat, 15 Sep 2007, Ndoye Souleymane wrote:
Dear Mr Ripley,
On 9/15/07, christophe vuadens <[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> Sorry for my english, in a R function, I want to read HTML files to analyse
> the text. Do somebody now, how can i read the text only in txt Foirmat...
>
> Thanks
> --
Have a look at this:
http://gking.harvard.edu/readme/
Hello,
Sorry for my english, in a R function, I want to read HTML files to analyse
the text. Do somebody now, how can i read the text only in txt Foirmat...
Thanks
--
View this message in context:
http://www.nabble.com/HTML-reading%2C-tf4447190.html#a12688719
Sent from the R help mailing lis
Dear Mr Ripley, Dear all,
Could you please help me to find an appropriate rpm package to install on
RED HAT LINUX ENTERPRISE 5.
I have experienced trouble in invoking R with R-2.5.1-1.fc7.i386.rpm. It
strats normaly and then it exit me to the prompt like shown below:
How to cope with this erro
Dear Mr Ripley, Dear all,
Could you please help me to find an appropriate rpm package to install on
RED HAT LINUX ENTERPRISE 5.
I have experienced trouble in invoking R with R-2.5.1-1.fc7.i386.rpm. It
strats normaly and then it exit me to the prompt like shown below:
How to cope with this erro
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