Displaying 3 results from an estimated 3 matches for "unsystemat".
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unsystematic
2011 Mar 30
2
summing values by week - based on daily dates - but with some dates missing
...e("2008-12-29"), length = 43, by = "day"),2)
myfactor<-c(rep("group.1",43),rep("group.2",43))
set.seed(123)
myvalues<-runif(86,0,1)
myframe<-data.frame(dates=mydates,group=myfactor,value=myvalues)
(myframe)
dim(myframe)
## Removing same rows (dates) unsystematically:
set.seed(123)
removed.group1<-sample(1:43,size=11,replace=F)
set.seed(456)
removed.group2<-sample(44:86,size=11,replace=F)
to.remove<-c(removed.group1,removed.group2);length(to.remove)
to.remove<-to.remove[order(to.remove)]
myframe<-myframe[-to.remove,]
(myframe)
--
Dimitr...
2013 Mar 20
2
Dealing with missing values in princomp (package "psych")
Hello!
I am running principle components analysis using princomp function in
pacakge psych.
mypc <- princomp(mydataforpc, cor=TRUE)
Question: I'd like to use pairwise deletion of missing cases when
correlations are calculated. I.e., I'd like to have a correlation between
any 2 variables to be based on all cases that have valid values on both
variables.
What should my na.action be in
2010 Nov 24
0
4. Rexcel (Luis Felipe Parra)-how to run a code from excel
...to work with R but I executed gdb from
> cygwin windoh and IIRC ctrl-C worked fine as it broke into debugger.
> I guess you could try that- start gdb and attach or invoke R from gdb.
>
>
OK, thanks. I started R with
R --debugger=gdb
in a shell, outside emacs. then it works.
I did some unsystematic sampling with Ctrl-C. Most of the time it was stuck
in memory.c, apparently doing garbage collection.
Other files which occured was unique.c, duplicate.c
kjetil
>
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Message: 109
Date: Mon, 22 Nov 2010 18:13:17 -0500
From: David Winsemius <dwinsemius at co...