creating a vector from a file
On May 31, 2011, at 10:38 AM, David Winsemius wrote:
On May 31, 2011, at 10:19 AM, heimat los wrote:
On Tue, May 31, 2011 at 4:12 PM, Matt Shotwell <matt at biostatmatt.com> wrote:
On Tue, 2011-05-31 at 15:36 +0200, heimat los wrote:
Hello all, I am new to R and my question should be trivial. I need to create a word cloud from a txt file containing the words and their occurrence number.
For
that purposes I am using the snippets package [1]. As it can be seen at the bottom of the link, first I have to create a
vector
(is that right that words is a vector?) like bellow.
words <- c(apple=10, pie=14, orange=5, fruit=4)
My problem is to do the same thing but create the vector from a file
which
would contain words and their occurence number. I would be very happy if
you
could give me some hints.
How is the file formatted? Can you provide a small example?
The file format is "video tape"=8 "object recognition"=45 "object detection"=23 "vhs tape"=2
Something like this may work: words <- read.table(file="name.txt", sep="=", header=FALSE) wvec <- words$V1 names(wvec) <- rownames(words)
Looking at Shotwell answer, I see that I got the column name wrong. His is the better answer.
David. > > Need to change the header argument and the col-name argument to "$" > if you have a header line. > > -- > David (DWin) > >> >> But I can change it if needed with bash scripting. >> >> Regards >> >> >> >>>> Moreover, to understand the format of the file to be inserted I >>>> write the >>>> vector words to a file. >>>> >>>>> write(words, file="words.txt") >>>> >>>> However, the file words.txt contains only the values but not the >>>> names(apple, pie etc.). >>>> >>>> $ cat words.txt >>>> 10 14 5 4 >>>> >>>> It seems that I have to understand more about the data types in R. >>>> >>>> Thanks. >>>> PH >>>> >>>> http://www.rforge.net/doc/packages/snippets/cloud.html >>>> >>>> [[alternative HTML version deleted]] >>>> >>>> ______________________________________________ >>>> R-help at 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 at 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. > > David Winsemius, MD > West Hartford, CT > > ______________________________________________ > R-help at 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. David Winsemius, MD West Hartford, CT