| Re: Deleting rows in a matrix [message #89179 is a reply to message #89178] |
Wed, 30 July 2014 23:16  |
Moritz Fischer
Messages: 32
Registered: June 2013
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Member |
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How about using the COUNT keyword to the where function?
i.e. replacing the line
shortArray = array[*, Where(~Histogram( ...
by the lines
tmp = Where(~Histogram(rows, MIN=0, MAX=dims[1]-1), COUNT = count)
IF count NE 0 THEN shortArray = array[*, tmp]
Am 31.07.2014 03:19, schrieb sylvestergreene51@gmail.com:
> Hello, I would like to delete a row from a 3D matrix. In the 2
> column there is a 4 that I don't want thus I need to delete the
> entire row. I tried using code from the coyote website
> https://www.idlcoyote.com/idl_way/remove_rows.php but I think my IDL
> is too old ( I have version 6.7) as it wont allow me to use /NULL
> with the WHERE function. Any suggestions?
>
>
> 25.000000 90.000000 28.000000 26.000000 92.000000
> 29.000000 27.000000 95.000000 30.000000 29.000000
> 97.000000 31.000000 31.000000 99.000000 33.000000
> 32.000000 101.00000 35.000000 33.000000 104.00000
> 37.000000 34.000000 107.00000 0.0000000 35.000000
> 4.0000000 0.0000000 36.000000 117.00000 40.000000
> 38.000000 119.00000 42.000000 39.000000 121.00000
> 43.000000 40.000000 124.00000 44.000000 42.000000
> 127.00000 45.000000 43.000000 129.00000 46.000000
> 45.000000 131.00000 48.000000 46.000000 133.00000
> 49.000000
>
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