[R] Difficulty importing data from PARI/GP

[jim holtman]

One way is to use 'readLines' to read in the file, change the ';' to
'\n', write the file out and then read it back in:

> x <- readChar('/temp/test.txt', 1e6)
> print(x)
[1] "1,2,3,4,5,6;1,2,3,4,5,6;1,2,3,4,5,6;1,2,3,4,5,6;1,2,3,4,5,6;1,2,3,4,5,6;1,2,3,4,5,6;1,2,3,4,5,6;1,2,3,4,5,6;1,2,3,4,5,6;1,2,3,4,5,6;1,2,3,4,5,6\r\n"
> x <- gsub(';', '\n', x)
> writeChar(x, '/temp/testNew.txt')
> # now read in the data
> x.df <- read.table('/temp/testNew.txt', sep = ',')
> x.df
   V1 V2 V3 V4 V5 V6
1   1  2  3  4  5  6
2   1  2  3  4  5  6
3   1  2  3  4  5  6
4   1  2  3  4  5  6
5   1  2  3  4  5  6
6   1  2  3  4  5  6
7   1  2  3  4  5  6
8   1  2  3  4  5  6
9   1  2  3  4  5  6
10  1  2  3  4  5  6
11  1  2  3  4  5  6
12  1  2  3  4  5  6


On Fri, Dec 21, 2012 at 12:39 PM, murfs <jm9461 at my.bristol.ac.uk> wrote:
> I'm trying to import a matrix created in PARI/GP into R but am having
> problems.
> The data in the text file has entries separated by commas but the rows
> themselves are separated by semicolons rathen than being on a new line. Is
> there a way to get R to recognise that ";" means start a new row ?
>
>
>
> --
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-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.