Re: [Orgmode] org-babel and gnuplot

How about this?? Just fiddled around a little and wonder what you think. There might be a better way, but essentially, I've done the following:

- Left y-axis = distance

- Right y-axis = time

- I couldn't get the xtic(1) option to work, so I replaced things with what I've found to work x:y:xticlabels(col#)

- Beefed up the points to make them a little easier to see

- Used your data to "calibrate" your speed

--- The left y-axis is from 9-21min

--- The right y-axis is from 1.5min - 3.5min

--- This means the axes are 'calibrated' to 10mph

What does the "calibration" do? It means that at a quick glance you can see your speed based on a target rate you set:

- if speed/distance are on top of each other, you're right at your target

- if speed (green) is higher than distance (red), you were faster than your target

- if speed (green) is lower than distance (red), you were slower than your target

Resetting your target is as easy as changing (in the code below):

- Time: yrange [y1:y2]

- Distance: y2range [y3:y4]

All you have to do is make sure that y3/y1 = y4/y2 = target speed

Also, remove the references to L/R and Red/Green if you'd like from the labels. I just tried to make the labels as easy as possible to follow so that no matter where you looked for a reference you would be forced to see what color/axis matched what value.

I attached a sample graph. Sorry if I overstepped my bounds -- I realize it's your workout tracker. Take what you like and ditch the rest. I wanted to know how to do two different y axes anyway so it helped me learn. Code is here:

------------------- gnuplot code -----------------------

#+tblname: sessions

|-------------+----+-------+----------|

| 9/1/2010 | 1 | 14:00 | 2.4 |

| 9/2/2010 | 2 | 15:13 | 2.5 |

| 9/10/2010 | 3 | 13:45 | 2.3 |

| 9/11 | 4 | 12:20 | 2.0 |

| Spd > 10mph | 5 | 16:35 | 2.8 |

| Spd = 10mph | 6 | 10 | 1.666 |

| Spd < 10mph | 7 | 20 | 2.8 |

#+begin_src gnuplot :var data="" :file org-running.png :exports both

reset

set title "Running Stats"

set size ratio square

set xlabel "Date"

set xtics nomirror rotate by -45

set yrange [9:21]

set ylabel "Time (min) -- Red"

set ytics nomirror

set y2range [1.5:3.5]

set y2label "Distance (mi) -- Green"

set y2tics 0,0.5,3.5

set style data points

plot data u 2:3:xticlabels(1) axis x1y1 lw 3 title 'Time (L axis)', \

data u 2:4 axis x2y2 lw 3 title 'Distance (R axis)'

#+end_src

------------------- end gnuplot code ---------------------

On Wed, Sep 8, 2010 at 11:52 AM, Nick Parker <address@hidden> wrote:

John,

I am reworking the gnuplot script, it is not done at this point, but this is what I currently have:

#+begin_src gnuplot :var data="" :file org-running.png :exports both

  set title "Running Stats"
  set xtics nomirror rotate by -45
  set key noenhanced
  set style data linespoints
  plot "$data" using 2:xtic(1) title columnheader(1), \

  for [i=2:3] '' using i title columnheader(i)
#+end_src

Nick Parker
www.developernotes.com

On Wed, Sep 8, 2010 at 9:39 AM, John Hendy <address@hidden> wrote:

Nick,

This got me curious to see the output. I tried to generate it on my computer and get this in the *gnuplot* buffer after running the code:

-----
gnuplot> plot data using 1:2:3 notitle
   ^
   warning: Skipping data file with no valid points
   ^
   x range is invalid
-----

This is working for you, though?

#+tblname: sessions
| Date | Time | Distance |
|------------+-------+----------|

| 09/02/2010 | 15:13 | 2.5 |

| 09/01/2010 | 14:00 | 2.4 |

#+begin_src gnuplot :var data="" :file org-running.png :exports both
  set title "Running Stats"
  set auto x

  set style data histogram

  set style fill solid border -1
  set boxwidth .9
  set xlabel "Date"
  set ylabel "Time"
  plot data using 1:2:3 notitle
#+end_src

John

On Wed, Sep 8, 2010 at 8:10 AM, Nick Parker <address@hidden> wrote:

Erik,

That was the issue, the :file reference needed to be on the line above. Thanks.

Nick Parker
www.developernotes.com

On Tue, Sep 7, 2010 at 10:27 PM, Erik Iverson <address@hidden> wrote:

On 09/07/2010 10:12 PM, Nick Parker wrote:

Hi John,

I would actually like to plot different lines per distance, each
that correlate to a date and elapsed-time (x and y axis respectively).
I get an error with the :file notation, though I read that in a sample
babel gnuplot example for generating graphs of commit history on the
org-mode git repository. I tried to reference the variable data without
the quotes and $ sign without any success. I will continue to fiddle
with it, I am new to gnuplot.

AFAIK, you can't break source code header argument lines across
multiple lines. Is that how you actually have it in your
org file?

#+begin_src gnuplot :var data=""> :file org-running.png :exports both
set title "Running Stats"
set auto x
set style data histogram
set style fill solid border -1
set boxwidth .9
set xlabel "Date"
set ylabel "Time"
plot "$data" using 1:2:3 notitle
#+end_src

Nick Parker
www.developernotes.com <http://www.developernotes.com>

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From:	John Hendy
Subject:	Re: [Orgmode] org-babel and gnuplot
Date:	Wed, 8 Sep 2010 14:04:33 -0500