dimnames in array
On Aug 8, 2012, at 3:19 AM, aleksandr russell wrote:
Hello, I'm working with an array; I'm trying to make it so that an array of dim(42,2,2) has names whose length corresponds to that of the array, and am hoping someone with experience with this can see what I'm not doing correctly: data11 = array(0,c(41,2,2)) y = lsoda(x0,times,fhn$fn.ode,pars)#This is make.fhn() from colloc infer package#
y = y[,2:3] data11<-array(0,c(41,2,2)) m8<-cbind(.29,1:41) m9<-as.array(m8,dim=c(41,2)) data11[,1,] = y+m9 data11[,2,] = y+m9
I didn't run that code since your difficulties did not seem to have anything to do with the values inside the array but only with the dimension labeling.
rownames(data2, do.NULL = FALSE, prefix="row")
What is 'data2'?
varnames=c("V","R")
colnames(data6)=c("one","two")
Ditto... what is 'data6'?
colnames(data10)=colnames(data6) dimnames(data11)=list(rownames(data2),varnames,colnames(data10)) data11a<-as.array(data11,dimnames=dimnames(data11)) attributes(data11a) #so this seems to print out the array attributes as they should be:
For which object?
two sets of two columns each, and the first column of each set is called 'v' and the second 'r'- no problem#
The data11 object had three dimenstions.
now the analysis from colloc infer(I've put it in below*)
takes this array but will not complete the analysis, saying
"Error in `colnames<-`(`*tmp*`, value = c("V", "R")) :
length of 'dimnames' [2] not equal to array extent"
Here's one way to label a 41 x 2 x 2 array:
> dimnames(data11)<- c(list(X=paste0("X",1:41)), list(Y=paste0("Y",
1:2)), list(Z=paste0("Z",1:2)) )
> attributes(data11)
$dim
[1] 41 2 2
$dimnames
$dimnames$X
[1] "X1" "X2" "X3" "X4" "X5" "X6" "X7" "X8" "X9" "X10"
"X11" "X12" "X13" "X14" "X15" "X16" "X17" "X18" "X19"
[20] "X20" "X21" "X22" "X23" "X24" "X25" "X26" "X27" "X28" "X29" "X30"
"X31" "X32" "X33" "X34" "X35" "X36" "X37" "X38"
[39] "X39" "X40" "X41"
$dimnames$Y
[1] "Y1" "Y2"
$dimnames$Z
[1] "Z1" "Z2"
When I type in length(dimnames(data11a)[2]) I get the answer: [1] 1 which seems odd when dimnames(data11a)[2] gives [[1]] [1] "V" "R"
It is a one element list whose single element is a 2 element vector.
I would like to ask "How can I get the names of the second dimension of the array(data11a) to have length "2" ? It seems to me that the analysis will run if I can make this array have the correct length dimnames I thank you for your help.
____________ * fd.data11a = data11a DEfd11a = Data2fd(fd.data11a, times, bbasis, fdnames=list(NULL,NULL,varnames)) profile11a.obj=LS.setup(pars,DEfd11a $coefs,fhn,basisvals=bbasis,lambda,fd.obj=NULL, more =NULL,data=data11a,weights=NULL,times=times,quadrature=NULL,eps=1e-6, posproc=FALSE,poslik=FALSE,discrete=FALSE,names=NULL,sparse=FALSE) lik = profile11a.obj$lik proc = profile11a.obj$proc qwts = rep(1/length(knots),length(knots)) qwts = qwts %*% t(lambda) weights = array(1,dim(data11a)) likmore = make.id() likmore$weights = weights lik = make.SSElik() lik$more = likmore lik$bvals = eval.basis(times,bbasis) procmore = make.fhn() procmore$weights = qwts procmore$qpts = qpts procmore$names = varnames procmore$parnames = parnames proc = make.SSEproc() proc$more = procmore proc$bvals = list(bvals = eval.basis(procmore$qpts,bbasis,0), dbvals = eval.basis(procmore$qpts,bbasis,1)) res11a = inneropt(coefs, times=times, data=data11a, lik=lik, proc=proc, pars=spars, in.meth='nlminb', control.in=control.out)
David Winsemius, MD Alameda, CA, USA