Re: [Gnuplot-info] Broken histograms when using smooth frequency on data file with discontinuities

[walter h. <wh...@bf...>]

Am 15.11.2011 17:08, schrieb Thomas Sefzick:
> David Lindelöf <lindelof <at> ieee.org> writes:
> 
>> I would like to plot the distribution of a variable and I follow the
>> directions given in the "Gnuplot in Action" book:
>>
>> I define a binning function:
>>
>> bin(x,s) = s*int(x/s)
>>
>> And then I use the plot command:
>>
>> plot './data.dat' u (bin($2, 0.2)):(1) smooth frequency
>>
>> However, the 'data.dat' file has a number of discontinuities in it
>> (i.e. blank lines). This causes the output to show several sets of
>> histograms, one for each continuous set of data.
>>
>> Is there any workaround for this? I would like the histogram to show
>> the distribution in the whole file, and to ignore discontinuities.
> 
> maybe use an external program to omit the blank lines:
> 
> plot '< awk "{if (NF) print}" ./data.dat' u (bin($2, 0.2)):(1) smooth frequency
> 
> "awk" should be installed on every unix system, for windows systems google
> for 'awk windows'.
> 
> 

 plot '< grep -v ^$ ./data.dat'  #seems more easy

just my 2 cents,
re,
 wh