Re: [Gnuplot-info] Basic question: how to plot the data on a bar chart?

[<rhu...@ih...>]

This may help someone else....

$0 = column(0)

is a pseudocolumn

The sequential order of each point within a data set.
The counter starts at 0 and is reset by two sequential blank records.
The shorthand form $0 is available.

Other pseudocolumns are column(-1) and column(-2)

gnuplot> help pseudo


On Mon, 27 Sep 2010 09:15:07 -0700
"rhu...@ih..." <rhu...@ih...> wrote:

> Thanks this gets me much closer. 
> I don't feel so bad now. That isn't as simple as I had expected.
> 
> Now I need to figure out how to add some additional logic to position the label
> for those bars that are shorter than the number of chars in the label. I think I
> can use a -/+ offset based on the bar size.
>  
> I tried
> 
> gnuplot> help $0
> 
> But didn't turn up anything and the mention of $0 in the doc
> wasn't enough. Is the $0 in this case relative? 
> i.e. is it the position on the x-axis of the x-value from "using"? 
> 
> I thought $1 was the first column of the data file so $0 is still unclear to
> me.
> 
> One thing I found was that the Index in the 4.4 gnuplot.pdf is empty/blank.
> Intentional? Or a bug?
> 
> 
> On Mon, 27 Sep 2010 01:41:17 -0700 (PDT)
> Thomas Sefzick <t.s...@fz...> wrote:
> > 
> > extend the plot command a little bit:
> > 
> > plot 'immigration.dat' using 6:xtic(1) title col, \
> >    '' u 12 ti col, '' u 13 ti col, '' u 14 ti col, \
> >    '' using (($0-1)-0.3):6:6 with labels left rotate by 90 offset graph
> > 0,0.02 notitle, \
> >    '' u (($0-1)-0.1):12:12 w labels left rot by 90 off gr 0,0.02 not, \
> >    '' u (($0-1)+0.1):13:13 w labels left rot by 90 off gr 0,0.02 not, \
> >    '' u (($0-1)+0.3):14:14 w labels left rot by 90 off gr 0,0.02 not
> > 
> > 
> > rhubbell wrote:
> > > 
> > > 
> > > I just want to plot the underlying data for each bar on the bar itself.
> > > Can someone show me how to do so using this page?
> > > 
> > > http://www.bmsc.washington.edu/people/merritt/gnuplot/
> > > 
> > > go down to:  Histogramming Tabular Data
> > > 
> > > On that histogram I would like to plot the y-values on the bars.
> > > 
> > > 
> > > I am using:
> > > 
> > > gnuplot> show version long
> > > 
> > >  Version 4.4 patchlevel 1
> > > <-snip-snip>
> > > Compile options:
> > > +READLINE  -LIBREADLINE  +HISTORY  
> > > -BACKWARDS_COMPATIBILITY  +BINARY_DATA  
> > > +GD_PNG  +GD_JPEG  +GD_TTF  +GD_GIF  +ANIMATION  
> > > -NOCWDRC  +X11  +X11_POLYGON  +MULTIBYTE  +X11_EXTERNAL +USE_MOUSE 
> > > +HIDDEN3D_QUADTREE  
> > > +DATASTRINGS  +HISTOGRAMS  +OBJECTS  +STRINGVARS  +MACROS  +IMAGE  
> > > 
>  
> 
> 
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