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3.6 Org Plot

Org Plot can produce graphs of information stored in Org tables, either graphically or in ASCII art.

Graphical plots using Gnuplot

Org Plot can produce 2D and 3D graphs of information stored in Org tables using Gnuplot and Gnuplot mode. To see this in action, ensure that you have both Gnuplot and Gnuplot mode installed on your system, then call C-c " g or M-x org-plot/gnuplot on the following table.

#+PLOT: title:"Citas" ind:1 deps:(3) type:2d with:histograms set:"yrange [0:]"
| Sede      | Max cites | H-index |
|-----------+-----------+---------|
| Chile     |    257.72 |   21.39 |
| Leeds     |    165.77 |   19.68 |
| Sao Paolo |     71.00 |   11.50 |
| Stockholm |    134.19 |   14.33 |
| Morelia   |    257.56 |   17.67 |

Notice that Org Plot is smart enough to apply the table’s headers as labels. Further control over the labels, type, content, and appearance of plots can be exercised through the ‘PLOT’ keyword preceding a table. See below for a complete list of Org Plot options. For more information and examples see the Org Plot tutorial.

Plot options

set

Specify any Gnuplot option to be set when graphing.

title

Specify the title of the plot.

ind

Specify which column of the table to use as the ‘x’ axis.

deps

Specify the columns to graph as a Lisp style list, surrounded by parentheses and separated by spaces for example ‘dep:(3 4)’ to graph the third and fourth columns. Defaults to graphing all other columns aside from the ‘ind’ column.

type

Specify whether the plot is ‘2d’, ‘3d’, or ‘grid’.

with

Specify a ‘with’ option to be inserted for every column being plotted, e.g., ‘lines’, ‘points’, ‘boxes’, ‘impulses’. Defaults to ‘lines’.

file

If you want to plot to a file, specify ‘"path/to/desired/output-file"’.

labels

List of labels to be used for the ‘deps’. Defaults to the column headers if they exist.

line

Specify an entire line to be inserted in the Gnuplot script.

map

When plotting ‘3d’ or ‘grid’ types, set this to ‘t’ to graph a flat mapping rather than a ‘3d’ slope.

timefmt

Specify format of Org mode timestamps as they will be parsed by Gnuplot. Defaults to ‘%Y-%m-%d-%H:%M:%S’.

script

If you want total control, you can specify a script file—place the file name between double-quotes—which will be used to plot. Before plotting, every instance of ‘$datafile’ in the specified script will be replaced with the path to the generated data file. Note: even if you set this option, you may still want to specify the plot type, as that can impact the content of the data file.

ASCII bar plots

While point is on a column, typing C-c `` a or M-x orgtbl-ascii-plot create a new column containing an ASCII-art bars plot. The plot is implemented through a regular column formula. When the source column changes, the bar plot may be updated by refreshing the table, for example typing C-u C-c *.

| Sede          | Max cites |              |
|---------------+-----------+--------------|
| Chile         |    257.72 | WWWWWWWWWWWW |
| Leeds         |    165.77 | WWWWWWWh     |
| Sao Paolo     |     71.00 | WWW;         |
| Stockholm     |    134.19 | WWWWWW:      |
| Morelia       |    257.56 | WWWWWWWWWWWH |
| Rochefourchat |      0.00 |              |
#+TBLFM: $3='(orgtbl-ascii-draw $2 0.0 257.72 12)

The formula is an Elisp call.

Function: orgtbl-ascii-draw value min max &optional width

Draw an ASCII bar in a table.

VALUE is the value to plot.

MIN is the value displayed as an empty bar. MAX is the value filling all the WIDTH. Sources values outside this range are displayed as ‘too small’ or ‘too large’.

WIDTH is the number of characters of the bar plot. It defaults to ‘12’.


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