Hmmm...The project i am working on does not necessitate the 27 matrix array, but i it will down the line. Im guessing the "all of that" is complicated? I figured, it would be by the time it took me to figure out that i dont possess the skills to craft the correct code. If there is anyone willing to give it a shot i would appreciate it.
________________________________ From: Dennis Murphy [mailto:djmu...@gmail.com] Sent: Thursday, January 21, 2010 3:25 PM To: ROLL Josh F Cc: r-help@r-project.org Subject: Re: [R] Create a multi dimensional array from a data frame Hi: Before you do all of that, might one inquire about which goal you are trying to achieve? Perhaps a 27-dimensional array may not be the wisest choice of data structure for your goal. Dennis On Thu, Jan 21, 2010 at 3:06 PM, LCOG1 <jr...@lcog.org<mailto:jr...@lcog.org>> wrote: Hello all, I have data from a csv that i need to coerce into a multi dimensional array. As you can see from my sample code i have yet to master building efficient code. I can sort of do what i want but its very cumbersome code and i know there is a better way to do it, i am just not expereinced enought yet. So for the following: #Create Data h1i1a1<-sample(1:20, 5, replace=TRUE) h1i1a2<-sample(1:20, 5, replace=TRUE) h1i1a3<-sample(1:20, 5, replace=TRUE) h1i2a1<-sample(1:20, 5, replace=TRUE) h1i2a2<-sample(1:20, 5, replace=TRUE) h1i2a3<-sample(1:20, 5, replace=TRUE) h1i3a1<-sample(1:20, 5, replace=TRUE) h1i3a2<-sample(1:20, 5, replace=TRUE) h1i3a3<-sample(1:20, 5, replace=TRUE) h1i4a1<-sample(1:20, 5, replace=TRUE) h1i4a2<-sample(1:20, 5, replace=TRUE) h1i4a3<-sample(1:20, 5, replace=TRUE) h2i1a1<-sample(1:20, 5, replace=TRUE) h2i1a2<-sample(1:20, 5, replace=TRUE) h2i1a3<-sample(1:20, 5, replace=TRUE) h2i2a1<-sample(1:20, 5, replace=TRUE) h2i2a2<-sample(1:20, 5, replace=TRUE) h2i2a3<-sample(1:20, 5, replace=TRUE) h2i3a1<-sample(1:20, 5, replace=TRUE) h2i3a2<-sample(1:20, 5, replace=TRUE) h2i3a3<-sample(1:20, 5, replace=TRUE) h2i4a1<-sample(1:20, 5, replace=TRUE) h2i4a2<-sample(1:20, 5, replace=TRUE) h2i4a3<-sample(1:20, 5, replace=TRUE) h3i1a1<-sample(1:20, 5, replace=TRUE) h3i1a2<-sample(1:20, 5, replace=TRUE) h3i1a3<-sample(1:20, 5, replace=TRUE) h3i2a1<-sample(1:20, 5, replace=TRUE) h3i2a2<-sample(1:20, 5, replace=TRUE) h3i2a3<-sample(1:20, 5, replace=TRUE) h3i3a1<-sample(1:20, 5, replace=TRUE) h3i3a2<-sample(1:20, 5, replace=TRUE) h3i3a3<-sample(1:20, 5, replace=TRUE) #Put into data frame hia<-data.frame(h1i1a1,h1i1a2,h1i1a3,h1i2a1,h1i2a2,h1i2a3,h1i3a1,h1i3a2,h1i3a3,h1i4a1,h1i4a2,h1i4a3,h2i1a1,h2i1a2,h2i1a3,h2i2a1,h2i2a2,h2i2a3,h2i3a1,h2i3a2,h2i3a3,h2i4a1,h2i4a2,h2i4a3,h3i1a1,h3i1a2,h3i1a3,h3i2a1,h3i2a2,h3i2a3,h3i3a1,h3i3a2,h3i3a3) i would like to produce a multidimensional array that looks something like h1 h2 h3 i1 X X X i2 X X X i3 X X X a = 1 , TAZ = 1:5 ->for all 5 TAZ values or each row h1 h2 h3 i1 X X X i2 X X X i3 X X X a = 2 , TAZ = i in 1:5 h1 h2 h3 i1 X X X i2 X X X i3 X X X a = 3 , TAZ = i in 1:5 Basically a matrix for all possible combination, so 27 matrices altogether. But i guess its more like an array of arrays? Again i am not being lazy, i have been working on this all day but my code, like my sample stuff is very inefficient and ultimately not working well so im not bothering to post it. I know this will be complicated so thank you in advance, seeing the end code will teach me a great deal. Thanks Cheers, JR -- View this message in context: http://n4.nabble.com/Create-a-multi-dimensional-array-from-a-data-frame-tp1068487p1068487.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org<mailto:R-help@r-project.org> mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
