Hi,
In SAS I have something like
%let dirname = c:\work\raw_data_files;
filename DIRLIST pipe "dir /B &dirname\*.txt";
Can someone help me to convert this to R. I tried with system and pipe, but It
actually creates a file on the disk which I don't like. I just need to have a
reference to th
Just modified your code a bit, hope this helps:
a=expand.grid(1:2,1:2)
b=expand.grid(1:2,1:2,1:2)
c=expand.grid(1:2,1:2,1:2,1:2)
l.long<-list(a,b,c)
mygrid<-do.call(expand.grid,lapply(l.long,function(x) 1:nrow(x)))
out<-vector("list",nrow(mygrid))
for(gridrow in 1:nrow(mygrid))
{
sum_rows=0
I agree with Duncan.
may be you need this
format(output[order(output[,3]),],scientific=T)
Pratap
--- On Sat, 2/2/13, Duncan Murdoch wrote:
From: Duncan Murdoch
Subject: Re: [R] order function
To: "Kripa R"
Cc: r-help@r-project.org
Date: Saturday, 2 February, 2013, 4:19 AM
On 13-02-01
library(sqldf)
k1<-data.frame(ID=LETTERS[1:4],
No=c(rep(123,3),111),
Change=c("final","error","bug fixed","final"),
Date=c("2013-01-15","2013-01-16","2013-01-17","2013-01-12"))
k1$Date=as.Date(as.character(k1$Date),tz=UK)
sqldf("select *
from k1
group by No
having max(Date)")
--- On Fri, 1/2
newdf<-data.frame(k1=rep(row.names(foo),ncol(foo)),stack(foo))
--- On Fri, 1/2/13, Gundala Viswanath wrote:
From: Gundala Viswanath
Subject: [R] Transforming 4x3 data frame into 2 column df in R
To: "r-h...@stat.math.ethz.ch"
Date: Friday, 1 February, 2013, 11:30 AM
I have the following dat
If you wish to remove missing values, you can use the option
na.action=na.omit.If you wish to Impute you can use rfImpute.
--- On Mon, 28/1/13, Lorenzo Isella wrote:
From: Lorenzo Isella
Subject: [R] RandomForest and Missing Values
To: r-h...@stat.math.ethz.ch
Date: Monday, 28 January, 2013,
Example from linear regression help (?lm)
ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
trt <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
group <- gl(2,10,20, labels=c("Ctl","Trt"))
weight <- c(ctl, trt)
lm.D9 <- lm(weight ~ group)
lm.D90 <- lm(weight ~ group - 1)
predic
Relative risk = exp(coef(model))
--- On Wed, 30/1/13, aminreza Aamini wrote:
From: aminreza Aamini
Subject: [R] Relative Risk in logistic regression
To: "R-help"
Date: Wednesday, 30 January, 2013, 4:19 PM
Hi all,
I am very grateful to all those who write to me
1) how i can obtain relative
dat1$VARNEW<-rep("unknown",nrow(dat1))
dat1$VARNEW[dat1$RES_STA=="X" & dat1$BIRTHPLACE %in%
c("AG","AI","AR","BE","ZH")]<-"swiss"
--- On Wed, 30/1/13, arun wrote:
From: arun
Subject: Re: [R] recoding variables again :(
To: "stude...@gmail.com"
Cc: "R help"
Date: Wednesday, 30 January, 2013,
Hi Dimitri,
Does this help?
k1<-data.frame(item=sample(rep(letters),10,replace=T),a=c(1:10),b=11:20)
k2<-data.frame(item="f",a=3,b=10)
merge<-function(y,x)
{
if(y$a>min(x$a))
{
x<-rbind(x,y)
x<-x[-which.min(x$a),]
}
return(x)
}
merge(k2,k1)
or much faster way would be to refer "library(sq
merge(df1,df2)
--- On Wed, 15/8/12, Jun Shen wrote:
From: Jun Shen
Subject: [R] Subsetting rows by multiple levels of selected values
To: "R-help"
Date: Wednesday, 15 August, 2012, 12:35 AM
Dear list,
Let's say we have a data frame as follows,
>expand.grid(a=1:5,b=c(1,5,10,20),DV=c(0.1,0.
I agree with John. Can you check that?
length(which(inclusion$Value == 0))
Pratap
--- On Wed, 15/8/12, John Kane wrote:
From: John Kane
Subject: Re: [R] Not able to filter factor, class
To: "Sri krishna Devarayalu Balanagu" ,
"r-help@r-project.org"
Date: Wednesday, 15 August, 2012, 12:37
Hi,
I have a string t1="(Ithis) I(test)". I need to get t2="(Ithis) test".
Can someone look into this. ?I have tried using gsub("I[^)]","",t1) , but
didn't get the required result.
Thanks,
Pratap
[[alternative HTML version deleted]]
__
R-
Df[1:30,]
--- On Fri, 31/10/08, Kurapati, Ravichandra (Ravichandra) <[EMAIL PROTECTED]>
wrote:
From: Kurapati, Ravichandra (Ravichandra) <[EMAIL PROTECTED]>
Subject: [R] how to retrieve some records from a dataframe
To: r-help@r-project.org
Date: Friday, 31 October, 2008, 2:14 PM
Hi ,
The group would be happy to answer your question if you can show an example
data frame on what is there and what is required.
Â
Cheers,
Pratap
--- On Wed, 17/9/08, Rajasekaramya <[EMAIL PROTECTED]> wrote:
From: Rajasekaramya <[EMAIL PROTECTED]>
Subject: [R] inserting values for null
To: r-help@
If you have read the table as a data frame say, DF then the following should
work
Â
DF[DF==0]<-NA
--- On Tue, 16/9/08, Amit Patel <[EMAIL PROTECTED]> wrote:
From: Amit Patel <[EMAIL PROTECTED]>
Subject: [R] HI
To: r-help@r-project.org
Date: Tuesday, 16 September, 2008, 7:02 PM
Does anyone kno
Thanks a lot! Its working fine
Pratap
Henrique Dallazuanna <[EMAIL PROTECTED]> wrote:
Try this:
lapply(apply(combn(ncol(x),2), 2, function(y)x[,y]),
function(z)t.test(z[,1], z[,2]))
On 29/01/2008, nalluri pratap
wrote:
> Hi Users,
>
> This is regarding the paired t
Hi Users,
This is regarding the paired t-test. I have 5 variables (say)
Data$v1,Data$v2,Data$v3,Data$v4,Data$v5 in my data frame. Now, I need to
perform a paired t-test on all the possible 10 pairs.How do I set up the pairs
table directly and pass those variables in to t-test.
Thanks
Hi All,
Is there a way we can delete the empty white space around when we generate
any graph/map using R? The final output should be onaly a picture with no white
spaces all around.
Cheers,
Pratap
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