Re: conflict of separator and missing

[Allin C. <cot...@wf...>]

On Tue, 14 Jun 2016, pl...@pi... wrote:

> On 14/06/16 09:43, pl...@pi... wrote:
>>
>> I have a data csv datafile which uses -99.99 as it missing data value.
>>
>> with the following settings the 'missing' data are getting plotted.
>>
>>   set datafile separator ","
>>   set datafile missing "-99.99"
>>
>>
>>   show datafile missing
>>
>>          "-99.99" in datafile is interpreted as missing value
>>
>>
>> As a wild guess I tried the following and the missing data now get
>> correctly removed.
>>
>>   set datafile missing "-99.99,"
>>
>>
>> This seems to be an illogical order of parsing.
>>
>> Surely the data line needs to be parsed into its constituent data
>> columns before trying to detect the missing data string.
>>
>> Regards, Peter
>>
>>
>> gnuplot> show version
>>
>>          G N U P L O T
>>          Version 5.0 patchlevel 1    last modified 2015-06-07
>>
>>          Copyright (C) 1986-1993, 1998, 2004, 2007-2015
>>          Thomas Williams, Colin Kelley and many others
>>
>>          gnuplot home:     http://www.gnuplot.info
>>          faq, bugs, etc:   type "help FAQ"
>>          immediate help:   type "help"  (plot window: hit 'h')
>>
>>
>>
>
> Just to complete this here is a sample line from the file displaying
> this bug.
>
> 1958, 06,   21351, 1958.4548,   -99.99,   -99.99,     317.25,   315.14,
>    317.25,   315.14

Doesn't it invite undefined behavior if you set "," as separator but 
then also include spaces between the values?

Allin Cottrell