Reading ASCII Files With NCL

From: Russell Todd (russellt AT XXXXXX)
Date: Tue Mar 19 2002 - 10:54:41 MST


Hi All,

I need some help reading an ASCII file with NCL. The file
contains a mixture of text, floats, and times and has the
following format:

        YY/MM/DD HH:MM HH.MM Kd Kn Max Ratio
        01/08/12 00:00 0.00 547.5 439.3 528.9 1.04
        01/08/12 00:05 0.08 414.2 321.6 517.5 0.80
        01/08/12 00:10 0.17 562.6 445.5 494.5 1.14
        01/08/12 00:15 0.25 426.3 338.7 482.7 0.88
        01/08/12 00:20 0.33 486.2 382.8 470.9 1.03
        01/08/12 00:25 0.42 480.9 383.2 459.0 1.05
        01/08/12 00:30 0.50 339.6 262.6 434.8 0.78
        01/08/12 00:35 0.58 382.8 296.0 422.6 0.91
        01/08/12 00:40 0.67 360.7 284.4 410.3 0.88
        01/08/12 00:45 0.75 308.9 237.7 397.9 0.78
        01/08/12 00:50 0.83 407.4 314.5 372.8 1.09
        01/08/12 00:55 0.92 357.3 275.9 360.2 0.99
        01/08/12 01:00 1.00 249.2 187.5 347.5 0.72
        01/08/12 01:05 1.08 242.9 182.8 334.7 0.73
        <rest of file deleted>

I would like to skip the header and read each column into a
vector of appropriate type. If I use the following command

        asciiread("datafile", -1, "string")
        
each line is read in as a string. Is there a built-in NCL
command that can parse each line and extract the different
fields?I checked the NCL FAQ but the links to the two examples
it cites are broken:

        http://www.cgd.ucar.edu/cas/ncl-csm/IO_asc2nc_1.shtml
        http://www.cgd.ucar.edu/cas/ncl-csm/IO_nc2asc_1.shtml
        
Any help would be greatly appreciated.

Thanks,

Russ Todd
MIT Lincoln Laboratory
Lexington, MA



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