search for: myiri

Hi Peter, Sorry if I was not clear. Perhaps an example will make my point: > data(iris) > class(iris$Species) [1] "factor" > write.table(iris,'data/myiris.tab') > data(myiris) > class(myiris$Species) [1] "factor" > rm(myiris) > options(stringsAsFactors = FALSE) > data(myiris) > class(myiris$Species) [1] "factor" > myiris<-read.table("data/myiris.tab",header=TRUE) > class(myiris$Species) [1...

...6:03 PM, Cook, Malcolm <MEC at stowers.org> wrote: >> Hi Peter, >> >> Sorry if I was not clear. Perhaps an example will make my point: >> >>> data(iris) >>> class(iris$Species) >> [1] "factor" >>> write.table(iris,'data/myiris.tab') >>> data(myiris) >>> class(myiris$Species) >> [1] "factor" >>> rm(myiris) >>> options(stringsAsFactors = FALSE) >>> data(myiris) >>> class(myiris$Species) >> [1] "factor" >>> myiris<-read.ta...

On Thu, Feb 18, 2016 at 6:03 PM, Cook, Malcolm <MEC at stowers.org> wrote: > Hi Peter, > > Sorry if I was not clear. Perhaps an example will make my point: > >> data(iris) >> class(iris$Species) > [1] "factor" >> write.table(iris,'data/myiris.tab') >> data(myiris) >> class(myiris$Species) > [1] "factor" >> rm(myiris) >> options(stringsAsFactors = FALSE) >> data(myiris) >> class(myiris$Species) > [1] "factor" >> myiris<-read.table("data/myiris.tab",head...

...gt; wrote: > >> Hi Peter, > >> > >> Sorry if I was not clear. Perhaps an example will make my point: > >> > >>> data(iris) > >>> class(iris$Species) > >> [1] "factor" > >>> write.table(iris,'data/myiris.tab') > >>> data(myiris) > >>> class(myiris$Species) > >> [1] "factor" > >>> rm(myiris) > >>> options(stringsAsFactors = FALSE) > >>> data(myiris) > >>> class(myiris$Species) > >> [1] &q...

Hiya, Probably been debated elsewhere.... I note that R's `data` function does not respect default.stringsAsFactors By my lights, it should, especially as it is documented to call read.table, which DOES respect. Oh, but: http://r.789695.n4.nabble.com/stringsAsFactors-FALSE-tp921891p921893.html Compelling. I have to agree. So, I change my mind. By my lights, `data` should then be

...hich seems correct ... but not for loading: > con <- file("clipboard","r") > load(con) Error in load(con) : loading from connections not compatible with magic number even though when I try it with real files then it works both ways: > save(iris,ascii=T,file="myiris.rda") > rm(iris) > load("myiris.rda") > ls() ... iris is back ... --- Date: Wed, 5 Nov 2003 19:01:20 +0000 (GMT) From: Prof Brian Ripley <ripley at stats.ox.ac.uk> To: Gabor Grothendieck <ggrothendieck at myway.com> Cc: <R-help at stat.math.ethz.ch>...

...ve(iris,ascii=TRUE,file="clipboard") Error in file(file, "wb") : `mode' for the clipboard must be `r' or `w' Also this (where gclip is a utility found at unxutils.sourceforge.net that copies its standard input to the clipboard): > save(iris,ascii=TRUE,file="myiris.rda") > system("cmd /c gclip < myiris.rda") > load("clipboard") Error in open.connection(con, "rb") : unable to open connection In addition: Warning message: cannot open compressed file `clipboard' _______________________________________________...

Greetings, I am exploring some random forest analysis methods and have come upon one aspect I don't fully understand from any manual. The code of interest is as follows from the randomForest package: myiris=cbind(iris[1:4], matrix(runif(508*nrow(iris)),nrow(iris),508)) This would be following by the rfcv() function for cross-validation but I am confused about the former syntax. My question is why 508? Is this some arbitrary number that one just chooses are is there some logic to the choice? I hav...