'Re: [Gnuplot-info] need help with stacked histogram'

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List:       gnuplot-info
Subject:    Re: [Gnuplot-info] need help with stacked histogram
From:       Steve Cohen <scohen () javactivity ! org>
Date:       2009-10-20 18:02:16
Message-ID: 4ADDFB28.1000804 () javactivity ! org
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Yes, thanks, Thomas, for all your help. This technique works, and I'm 
not sure why I thought it didn't. It works with impulses too. Working 
too hard, I guess. Thanks again.


Thomas Sefzick wrote:
> you may use boxes instead of impulses:
>
> set title "Database Connections"
> set key below
> set xdata time
> set timefmt "%Y-%m-%d %H:%M"
> set format x "%H:%M"
> set style fill solid
> set boxwidth 60.0
> set yrange [0:]
> plot 'latest-connections.dat' using 1:7 with boxes title "other", \
> '' using 1:($3+$4+$5+$6) with boxes title "D", \
> '' using 1:($3+$4+$5) with boxes title "C", \
> '' using 1:($3+$4) with boxes title "B", \
> '' using 1:($3) with boxes title "A"
>
> but, if the highest impulses overdraw the smaller ones then there
> is something wrong with your gnuplot 4.0 installation. i can not
> reproduce this behavior here with
> G N U P L O T
> Version 4.0 patchlevel 0
> last modified Thu Apr 15 14:44:22 CEST 2004
> System: Linux 2.6.27.29-0.1-pae
>
>
> Steve Cohen wrote:
>   
>> Thanks, Thomas - this works - up to a point. The bars display as I 
>> wanted them to.
>>
>> However, part of the point of my earlier attempt was to get the 
>> time-based x-axis to show recognizable times (17:30, etc.) In this 
>> graph, since there are so many bars so close together, the time values 
>> overwrite each other beneath the x-axis making an unrecognizable line of 
>> black mess. How would I fix this?
>>
>> Also, unfortunately, the server I ultimately want to run this on runs 
>> RedHat EL which has not released a distro yet that includes Gnuplot 4.2, 
>> and so I am restricted to using 4.0 there. Over there I could ALMOST get 
>> what I like running using the following with the same data. This WORKS 
>> on 4.2, but on 4.0 the largest impulse overwrites all the others so that 
>> only the first impulse is seen.
>>
>> set title "Database Connections"
>> set key below
>> set xdata time
>> set timefmt "%Y-%m-%d %H:%M"
>> set format x "%H:%M"
>> set yrange [0:*]
>>
>> plot 'latest-connections.dat' using 1:7 title "other" with impulses, \
>> 'latest-connections.dat' using 1:($6+$5+$4+$3) title "A" with impulses, \
>> 'latest-connections.dat' using 1:($5+$4+$3) title "B" with impulses, \
>> 'latest-connections.dat' using 1:($4+$3) title "C" with impulses, \
>> 'latest-connections.dat' using 1:3 title "C" with impulses
>>
>> Is there a way to do something like this in 4.0? Because I haven't found 
>> it, I am restricted to a messy and somewhat inadquate replacement using 
>> impulses for the whole and points for the parts, which is somewhat 
>> informative but I want it to stack.
>>
>>
>>
>> Thomas Sefzick wrote:
>>     
>>> you mix xticlabels for histograms and x-axis timedata.
>>> this can not work. and, your column numbering is not
>>> correct.
>>> use following script and see if it does what you expect:
>>>
>>> reset
>>> set title "Database Connections"
>>> set key below
>>> set style data histogram
>>> set style histogram rowstacked
>>> set style fill solid noborder
>>> set boxwidth 0.75
>>> plot 'latest-connections.dat' using 3:xtic(2) title "A", \
>>> '' using 4 title "B", \
>>> '' using 5 title "C", \
>>> '' using 6 title "D", '' using ($7-($3+$4+$5+$6)) title "other"
>>>
>>>
>>> Steve Cohen wrote:
>>>   
>>>       
>>>> All the samples tend to assume that you are working from a data file 
>>>> where the header row contains the labels for each piece of the stack.  
>>>> That is not the case in my situation.  I want to supply the labels from 
>>>> each stack in the script.
>>>>
>>>> My script is as follows:
>>>>
>>>> #set terminal png transparent nocrop enhanced size 900 600
>>>> #set output 'latest-connections.png'
>>>> set title "Database Connections"
>>>> set key below
>>>> set xdata time
>>>> set timefmt "%Y-%m-%d %H:%M"
>>>> set format x "%H:%M"
>>>> set style data histogram
>>>> set style histogram rowstacked
>>>> set style fill solid noborder
>>>>
>>>> plot 'latest-connections.dat' using 1 "%Y-%m-%d %H:%M", \
>>>> '' using 2 title "A", \
>>>> '' using 3 title "B", \
>>>> '' using 4 title "C", \
>>>> '' using 5 title "D", \
>>>> '' using ($6-($2+$3+$4+$5)) title "other"
>>>> ------------------------------------------
>>>>
>>>> Data File is as follows:
>>>>
>>>> 2009-10-17 10:15 5 0 0 22 27
>>>> 2009-10-17 10:17 5 0 0 8 13
>>>> 2009-10-17 10:19 5 0 0 8 13
>>>> 2009-10-17 10:31 5 0 0 13 18
>>>> ...
>>>>
>>>> Error message is:
>>>>
>>>>  "connections2.gplot", line 17: Please use between 1 and 7 conversions, 
>>>> of type double (%lf)
>>>>
>>>> Not sure what this means or what I must do to correct it.
>>>>
>>>> Can someone help?
>>>>
>>>> Thanks.
>>>>
>>>>
>>>>
>>>>
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>>>>
>>>>     
>>>>         
>>>   
>>>       
>> ------------------------------------------------------------------------------
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>>
>>     
>
>   


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