similar to: Handling missing data

Displaying 11 results from an estimated 11 matches similar to: "Handling missing data"

2009 Sep 21
2
How to handle missing values for the GeneMeta package?
Hello all, It seems that the GeneMeta passage returns NA in the respective row if any gene in the data sets to be synthesised are missing. Do you know of a way to overcome this problem? I tried using the 'impute' package to fill-in the missing values, but R crashes if 'impute' and 'GeneMeta' packages are used together. I have asked a separate question for that. Thanks
2009 Oct 29
5
R crashes
My R crashes frequently when run with huge data. -- View this message in context: http://www.nabble.com/R-crashes-tp26110355p26110355.html Sent from the R help mailing list archive at Nabble.com.
2009 Sep 21
2
R crashes when packages 'impute' and 'GeneMeta' are used together.
Well, the title says all for this one. It seems to crash the R-console, so it happens whether I use the R-gui or R-console directly or Emacs with ESS. I have R 2.9.0 on Windows Vista. Thanks, Vassilis
2009 Sep 18
4
Datetime conversion
I'm relatively new to R .I tried converting the datetime column with values like 01apr1985:00:00:00.000 using strptime(datetime,"%d%b%Y).Could anyone help me in this regard .Please reply ASAP i need . -- View this message in context: http://www.nabble.com/Datetime-conversion-tp25503138p25503138.html Sent from the R help mailing list archive at Nabble.com.
2009 Sep 22
5
use of class variable in r as in Proc means of sas
Hi,everyone i need to calculate quartile values of a variable grouped by the other variable . same as in aggregate function(only median,mean or functions is possible-i think so) Could you please help me to achieve the same for other quartile values(5,10,25,75,90) as for median using aggregate. Thanks in advance. data : zip price 60000 567000 60001 478654 60004 485647 60001
2009 Sep 25
2
Nested select
my data : library(doBy) lines<-"lo ptcl5 ptcl99 variable 430 . 8787 a 430 342 2343 m 430 . 89 mr 431 456 4774 a 431 299 2777 m 431 99 96 mr 432 333 3433 a 432 . 7377 m 432 .
2010 Jan 25
4
R Memory Problem
Is anyone could help me to resolve this problem?I'm presently an SAS user for my application and was exploring R to use it for my application.I have already posted this question on using my 32 bit machine with 2GB RAM and from what i understood was to use a 64Bit machine .I tried using 64bit machine using 4GB RAM .I'm running predictive analytics using R and to calibrate my model i used to
2010 Jan 29
1
R on Hard drive memory
I heard form my friend there is a way to run R in system hard disk space not in the RAM .By that we may not run out of memory and have problem attached with the same.Someone could help me in this.Thanks. -- View this message in context: http://n4.nabble.com/R-on-Hard-drive-memory-tp1401528p1401528.html Sent from the R help mailing list archive at Nabble.com.
2007 Oct 30
6
trouble installing building packages from source using R 2.6.0 on Ubuntu Gutsy AMD64
I have recently upgraded to Ubuntu Gutsy and, for the first time, am using a 64-bit installation. After failing miserably to install R from source, not a problem for me in the past with a 32-bit install, I went the route of using the Debian Etch build. This went smoothly, but I am unable to update my numerous R and BioConductor packages, getting non-zero exit status errors on each package. Is
2010 Apr 15
4
Does "sink" stand for anything?
Hello Everyone,   Learning about R and its wonderful array of functions. If it's not obvious, I usually try to find out what a function stands for. I think this helps me remember better.   One function that has me stumped is "sink." Can anyone tell me if this stands for something?   Thanks,   Paul         __________________________________________________ [[alternative HTML
2010 Apr 15
3
Replace / with - in date
Hi,every one .I have searched the solutions in the forum for replacing my date value which is in a data frame ,01/01/2000 to 01-01-2000 using replace function but got the following warning message x<-"2000/01/01" xd<-as.data.frame(x) xd$x<-replace(xd$x,xd$x=="/","-") Warning message: In `[<-.factor`(`*tmp*`, list, value = "-") : invalid