Re: [Gnuplot-info] Can gnuplot create cycle plots (also called month plots)?

[DavidH56 <dlh...@co...>]

Thomas,

Thank you, your code worked great, it's exactly what I needed. I've been
struggling with this problem for a while. 

I changed the timefmt in my script to "%m-%d-%Y" to match my data and I used
set nokey to turn off the legend.

The only minor problem I have is with the x axis. The x axis values run from
0 to 80 in increments of 10 units. The first plot, which is all of the
January values, is flush left with an x value of zero, and the x values get
out of kilter with December falling at approximately 70.

Any thoughts?

Thanks again,

David



Thomas Sefzick wrote:
> 
> assuming that your data have the following format
> 
> ...
> 2014-01-01 169
> 2014-02-01 170
> 2014-03-01 171
> 2014-04-01 172
> ...
> 
> and that there are no gaps in the data and that there is one value
> per month in every year, the following script may serve as an example
> how such a cycle plot may be produced:
> 
> reset
> 
> # number of entries per month (i.e. number of years)
> n=0
> # number of months
> m=12
> 
> # although x-data are dates, we do the conversion into
> # 'seconds since the beginning of the epoch' by our own,
> # so we *don't* set xdata
> #set xdata time
> # but 'timefmt' we need for using 'timecolumn()'
> set timefmt "%Y-%m-%d"
> 
> # dummy plot to determine the value of 'n'
> set table
> plot for [i=0:m-1] "datafilename" \
>    using ($0>n?n=$0:0 , $0):2 every 12::i
> unset table 
> print n
> 
> plot for [i=0:m-1] "datafilename" \
>    using (tm_mon(timecolumn(1))+$0+i*n):2 \
>    every m::i \
>    with linespoints
> 
> 
> 
> DavidH56 wrote:
>> 
>> Cycle plots are useful in my work, and I'd like to know if it possible to
>> create cycle plots in gnuplot.
>> 
>> Naomi Robbins discusses cycle plots in her book Creating More Effective
>> Graphs as well as in this article:
>> 
>> http://www.perceptualedge.com/articles/guests/intro_to_cycle_plots.pdf
>> 
>> Cycle plots can be generated in R using the "monthplot" command. If cycle
>> plots can't be created in gnuplot, is there a way to make a feature
>> request?
>> 
>> Thanks,
>> 
>> David
>> 
>> 
> 
> 

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