[R] read file problem

[ronggui]

You should pay attention to the argument na.string.

na.strings: a character vector of strings which are to be interpreted
          as 'NA' values.  Blank fields are also considered to be
          missing values in logical, integer, numeric and complex
          fields.


On 11/3/06, Luis Ridao Cruz <Luisr at frs.fo> wrote:
> R-help,
>
> I have the following file I want to import to R (some lines
> removed)
>
>
> Calibrated CTD data for station:00280001
> Calibrated:23/8  2001, Salinity Unsmoothed,  Fluorescence Uncalibrated
> Maximum observed depth:    36 m
> QUAL has one digit for each of pressure, temp., sal. and fluor.
> QUAL=1:Uncal.,  QUAL=2:OK,  QUAL=6:Interp.,  QUAL=9:No data
>
> DEPTH  CTDPRS  CTDTMP  CTDSAL  RAWFLU NUMB. QUAL
>     M    DBAR IPTS-68  PSS-78          OBS.
>       ******* ******* ******* *******
>     1     1.0                               2999
>     2     2.0  5.9793 35.1629    .107    17 2221
>     3     3.0  5.9797 35.1631    .101    17 2221
>     4     4.0  5.9809 35.1631    .118    12 2221
>     5     5.1  5.9811 35.1629    .115    42 2221
>     6     6.1  5.9810 35.1631    .116    18 2221
>     7     7.1  5.9797 35.1631    .116    15 2221
>     8     8.1  5.9798 35.1630    .102    13 2221
>     9     9.1  5.9792 35.1629    .113    11 2221
> ...............
> ................
> .........
>
>
> If I use :
>
> read.table(file, skip = 10)
>
> it works fine but sometimes the missing data are not only
> in line number 1 ( 1     1.0                               2999)
> but in lines 1,2,3,,, and therefore R fails to import the data file
>
> How can I fix it?
> I have tried with the arguments
> strip.white = TRUE
> , fill = TRUE
> , blank.lines.skip = TRUE
>
> but still not get what I want
>
>
> Thanks in advance
>
> > version
>                _
> platform       i386-pc-mingw32
> arch           i386
> os             mingw32
> system         i386, mingw32
> status
> major          2
> minor          4.0
> year           2006
> month          10
> day            03
> svn rev        39566
> language       R
> version.string R version 2.4.0 (2006-10-03)
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>


-- 
Ronggui Huang
Department of Sociology
Fudan University, Shanghai, China
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