[ncl-talk] Supported file types for asciiread

[Dave Allured - NOAA Affiliate]

Ryan,

Do not use addfile with asciiread.  Just call asciiread directly, with the
actual file name in the first argument.  See the asciiread function docs.

--Dave


On Fri, Apr 22, 2016 at 3:13 PM, Ryan Connelly <rconne01 at gmail.com> wrote:

> Hi all,
>
> Trying to read in sounding data that I have in a .txt file using the
> asciiread function (
> https://www.ncl.ucar.edu/Document/Functions/Built-in/asciiread.shtml):
>
> f = addfile("../2016020512_sounding.asc","r")
>
>   data_obs = asciiread(f,-1,"string")               % Loads text file
>   p_obs = tofloat(str_get_field(data_obs,1,"     "))    % Reads in first
> column, which is pressure in hPa
> etc...
>
> But I get:
>
> warning:["FileSupport.c":3026]:NCL does not know anything about file
> suffix <txt>.
> But NCL will try its best to figure out the file format.
>
> fatal:An internal error has occurred. The file format requested does not
> appear to be supported, could not open (../2016020500_sounding_OKX.txt)
> fatal:Argument type mismatch on argument (0) of (asciiread) can not coerce
>
>
> Even the examples on this page use .txt files, and I've tried .asc and
> .csv with the same error message, so what is the problem here?
>
> Ryan
>
> --
> Ryan Connelly
> M.S. Student in Atmospheric Sciences, Stony Brook University
> B.S. in Meteorology with Minors in Mathematics and GIS, Valparaiso
> University
> rconne01 at gmail.com
> ryan.connelly at stonybrook.edu
>
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