| Reading complicated ASCII data [message #71527] |
Tue, 29 June 2010 06:05  |
Tone M R
Messages: 2
Registered: June 2010
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Junior Member |
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Hi!
I've been racking my brains and the web for the best part of a day,
but have not managed to find anything useful to solve my problem,
which is this:
I've got an automatically generated .txt file of rainfall measurements
which I need to read. I'm having trouble with the format of the file,
which looks more or less like this:
------------------------------------------------------------ -----
[block of not-so-interesting information]
Date Jan Feb Mar Apr May Jun Jul Aug Sep
Oct Nov Dec
1 0.5 1.4 . 4.7 . .
0.1 . . . .
2 0.6 0.3 3.9 . . . . .
4.0 . .
3 5.8 1.6 4.9 0.1 3.1 3.4 4.4 0.2 0.9
1.4 .
4 2.0 5.1 1.9 0.2 0.5 6.7 3.3 . 1.1
0.1 .
5 6.8 0.6 9.7 . 2.7 0.8 1.6 2.4
0.7 . .
... and so forth, for an entire year. - a 13x31 table of floats.
[new block of non-helpful stuff]
[new block of data for another year]
------------------------------------------------------------ ------------
etc..., for a total of ten years.
The table of figures is actually in straight columns, a column per
month, with a dot wherever a measurement is zero. (There are also
blank spaces at the bottom of each table, for dates such as feb 30th.)
I've managed to work around the headers and identify where a table
starts, and what I wanted to do was to read the entire thing into a
nice structure array I've prepared. However, when using READF, IDL
stops when trying to convert a dot to a float (understandably), and I
haven't managed to solve it with a format code. I have thought about
using STRSPLIT and WHERE to replace them, but then I have to go one
line at a time, and I was rather hoping to make something a little
more elegant.
Does anyone see a way around these dots?
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