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.
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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 .
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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.
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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
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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