[R] Read text file

[Pascal Oettli]

Hello,

See the "fill" option of the "read.csv" function. But be careful, it
might lead to erroneous results, as explained in the help page...

And there is neither $GPGLL nor $GPGLA in your example.

Regards,
Pascal

On Tue, Mar 11, 2014 at 9:00 PM, Alaios <alaios at yahoo.com> wrote:
> Hi all
> I am trying to read some text files with the following format:
>
> 1377262633.948000    $GPRMC,125708.00,A,5047.66107,N,00603.65528,E,0.203,247.36,230813,,,A*60
> 1377262633.958000    $GPVTG,247.36,T,,M,0.203,N,0.377,K,A*3B
> 1377262633.968000    $GPGGA,125708.00,5047.66107,N,00603.65528,E,1,09,0.85,169.3,M,46.5,M,,*52
> 1377262633.978000    $GPGSA,A,3,29,21,31,25,16,05,06,13,27,,,,1.78,0.85,1.57*0C
> 1377262633.998000    $GPGSV,3,1,12,03,01,266,,05,16,043,39,06,21,263,43,13,07,330,43*70
> 1377262634.008000    $GPGSV,3,2,12,16,37,302,45,18,03,149,,21,59,166,33,23,04,304,16*75
> 1377262634.028000    $GPGSV,3,3,12,25,18,129,21,27,11,260,39,29,45,071,47,31,35,211,47*7C
>
> but this returns me the following:
>
> read.csv("sensor_0.log",sep=",")
> Error in read.table(file = file, header = header, sep = sep, quote = quote,  :
>   more columns than column names
>
> I guess the problem is that the columns are not consistent on a per row basis.
> What  I am trying to do though is to read only the lines that contain the $GPGLL or the $GPGLA entries (in the example they corresponds to 3rd and 4th line).
> How can I do this in R?
>
> Regards
> A
>         [[alternative HTML version deleted]]
>
>
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>



-- 
Pascal Oettli
Project Scientist
JAMSTEC
Yokohama, Japan