Displaying 4 results from an estimated 4 matches for "dataforr".
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2009 Apr 17
0
question about the Text Mining package tm
...ls in Japan, and mo...
http://i.sitesays.com/lc7Japan Said to Sell 17 Trillion Yen of Extra Bonds -
Bloomberg
Actually there were no new lines in the original file but I inserted a new
line before every occurrence of http.
I ran the following code:
library("tm")
my.path <- 'C:\\dataForR\\textsTweet1\\'
my.path.csv<-'C:\\dataForR\\textsTweet1\\myTextFile.csv'
(ovid <- Corpus(DirSource(my.path), readerControl = list(reader = readPlain,
language = "la")))
Response from R:
A text document collection with 3 text documents
Warning message:
In readLines(filen...
2009 May 24
2
accuracy of a neural net
...( I was using the
same data for training and prediction but I did not expect perfect
prediction anyway). So I tried using only a sample of records to build the
neural net.
Even with this sample I got 980 out of 982 correct. Can anyone spot an error
here?
crs$dataset <- read.csv("file:///C:/dataForR/textsTweet1/cleanForPC.csv",
na.strings=c(".", "NA", "", "?"))
crs$nnet <- nnet(Value ~ ., data=crs$dataset[,c(1:22,922)], size=10,
linout=TRUE, skip=TRUE, trace=FALSE, maxit=1000)
targets=crs$dataset[,922]
rawpredictions =predict(crs$nnet, crs$data...
2009 Apr 20
1
factanal error
Hi. I tried running the following code. I don't understand the error.
mydata <- read.table("C:/dataForR/radiology/wordFrequencies.csv",
header=TRUE, sep=",")
> dim(mydata)
[1] 982 924
mydataN<-mydata[,-923]
> dim(mydataN)
[1] 982 923
cor(mydataN)
factanal(mydataN, factors=3)
Error in solve.default(cv) :
Lapack routine dgesv: system is exactly singular
Thank you for loo...
2009 Apr 20
0
system is exactly singular
Hi. I have a csv file. I imported it with
mydata<-read.table("C:/dataForR/radiology/WordFrequency.csv", header=TRUE,
sep=",")
> dim(mydata)
[1] 982 925
The first column had the doc numbers like doc1, doc2, etc. so I did
mydataNum<-mydata[,-1]
> dim(mydataNum)
[1] 982 924
The second to last column was also not numeric and so I did
> mydataNu...