*Generating boxplot (candlestick) diagrams (babel or org-plot)@ 2012-01-08 15:44 Karl Voit2012-01-08 16:38 ` Eric Schulte 0 siblings, 1 reply; 5+ messages in thread From: Karl Voit @ 2012-01-08 15:44 UTC (permalink / raw) To: emacs-orgmode Hi! I'm new to babel/gnuplot/org-plot and want to generate classic Boxplot[1] diagrams. My tests failed so far: #+TBLNAME: mydata #+PLOT: title:"Boxplots of mydata" with:candlesticks | A | B | |---+---| | 5 | 5 | | 5 | 6 | | 4 | 5 | | 5 | 6 | | 2 | 4 | | 2 | 5 | ... with «org-plot/gnuplot» results in: #+begin_verse gnuplot-mode 0.6.0 (gnuplot 4.4) -- report bugs with "C-c C-u" Starting gnuplot plotting program...Done #+end_verse ... with nothing else. #+begin_src gnuplot :var data=mydata :file output.png set title "Plot Test" plot data using 1:2 with candlestick #+end_src ... results in empty output.png file. What is the problem here? At least the second method should end up in an error message or a file with content I guess. 1. http://en.wikipedia.org/wiki/Boxplot -- Karl Voit ^ permalink raw reply [flat|nested] 5+ messages in thread

*Re: Generating boxplot (candlestick) diagrams (babel or org-plot)2012-01-08 15:44 Generating boxplot (candlestick) diagrams (babel or org-plot) Karl Voit@ 2012-01-08 16:38 ` Eric Schulte2012-01-08 17:30 ` Karl Voit 0 siblings, 1 reply; 5+ messages in thread From: Eric Schulte @ 2012-01-08 16:38 UTC (permalink / raw) To: news1142;+Cc:emacs-orgmode [-- Attachment #1: Type: text/plain, Size: 1911 bytes --] Karl Voit <devnull@Karl-Voit.at> writes: > Hi! > > I'm new to babel/gnuplot/org-plot and want to generate classic > Boxplot[1] diagrams. > > My tests failed so far: > > #+TBLNAME: mydata > #+PLOT: title:"Boxplots of mydata" with:candlesticks > | A | B | > |---+---| > | 5 | 5 | > | 5 | 6 | > | 4 | 5 | > | 5 | 6 | > | 2 | 4 | > | 2 | 5 | > > ... with «org-plot/gnuplot» results in: > #+begin_verse > gnuplot-mode 0.6.0 (gnuplot 4.4) -- report bugs with "C-c C-u" > Starting gnuplot plotting program...Done > > #+end_verse > > ... with nothing else. > > > #+begin_src gnuplot :var data=mydata :file output.png > set title "Plot Test" > > plot data using 1:2 with candlestick > #+end_src > > ... results in empty output.png file. > In more complex examples like these I would recommend using a gnuplot code block rather than using Org-plot. Gnuplot has an extremely comprehensive built in help system, typing "help boxplot" at the gnuplot REPL returns the following. ,---- | gnuplot> help boxplot | Boxplots are a common way to represent a statistical distribution of values. | Quartile boundaries are determined such that 1/4 of the points have a value | equal or less than the first quartile boundary, 1/2 of the points have a value | equal or less than the second quartile (median) value, etc. A box is drawn | around the region between the first and third quartiles, with a horizontal line | at the median value. Whiskers extend from the box to user-specified limits. | Points that lie outside these limits are drawn individually. | | Examples | | # Place a boxplot at x coordinate 1.0 representing the y values in column 5 | plot 'data' using (1.0):5 | | ... `---- Also see the help for "candlestick". Using this information the attached Org-mode file generates a candlestick plot using a Gnuplot code block. [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #2: candlestick.org --] [-- Type: text/x-org, Size: 642 bytes --] #+Title: Box-Plots with Gnuplot #+Options: ^:nil #+name: sample | x | box_min | whisker_min | whisker_high | box_high | |---+---------+-------------+--------------+----------| | 1 | 2 | 0 | 6 | 4 | | 2 | 3 | 1 | 7 | 5 | | 3 | 4 | 2 | 8 | 6 | | 4 | 5 | 3 | 9 | 7 | | 5 | 6 | 4 | 10 | 8 | | 6 | 7 | 5 | 11 | 9 | #+begin_src gnuplot :var data=sample :results silent set xrange [0:7] plot data using 1:2:3:4:5 with candlesticks #+end_src [-- Attachment #3: Type: text/plain, Size: 228 bytes --] Best, > > > What is the problem here? At least the second method should end up > in an error message or a file with content I guess. > > 1. http://en.wikipedia.org/wiki/Boxplot -- Eric Schulte http://cs.unm.edu/~eschulte/ ^ permalink raw reply [flat|nested] 5+ messages in thread

*Re: Generating boxplot (candlestick) diagrams (babel or org-plot)2012-01-08 16:38 ` Eric Schulte@ 2012-01-08 17:30 ` Karl Voit2012-01-08 18:05 ` Eric Schulte 0 siblings, 1 reply; 5+ messages in thread From: Karl Voit @ 2012-01-08 17:30 UTC (permalink / raw) To: emacs-orgmode Hi Eric! * Eric Schulte <eric.schulte@gmx.com> wrote: > > In more complex examples like these I would recommend using a gnuplot > code block rather than using Org-plot. Thought so. Thanks for confirmation. > Gnuplot has an extremely > comprehensive built in help system, typing "help boxplot" at the gnuplot > REPL returns the following. My gnuplot (Version 4.4 patchlevel 2) returns: ,---- | gnuplot> help boxplot | Sorry, no help for 'boxplot' | gnuplot> `---- gnuplot-doc is installed. Do I miss something else? «help candlestick» works. Is «boxplot» a part of an additional extension package? > Also see the help for "candlestick". Using this information the > attached Org-mode file generates a candlestick plot using a Gnuplot code > block. > > #+name: sample >| x | box_min | whisker_min | whisker_high | box_high | >|---+---------+-------------+--------------+----------| > > #+begin_src gnuplot :var data=sample :results silent > set xrange [0:7] > plot data using 1:2:3:4:5 with candlesticks > #+end_src Your example works like charm at my side. And now I also understand the problem I had: I thought that gnuplot is able to derive min/max whisker min/max from the data columns by itself. Well - this is bad news to me since I do not see any reasonable way to use gnuplot for that purpose. I might need to learn R or Python/matplotlib :-( Thanks for your help anyway! -- Karl Voit ^ permalink raw reply [flat|nested] 5+ messages in thread

*Re: Generating boxplot (candlestick) diagrams (babel or org-plot)2012-01-08 17:30 ` Karl Voit@ 2012-01-08 18:05 ` Eric Schulte2012-01-09 16:46 ` Karl Voit 0 siblings, 1 reply; 5+ messages in thread From: Eric Schulte @ 2012-01-08 18:05 UTC (permalink / raw) To: news1142;+Cc:emacs-orgmode Karl Voit <devnull@Karl-Voit.at> writes: > Hi Eric! > > * Eric Schulte <eric.schulte@gmx.com> wrote: >> >> In more complex examples like these I would recommend using a gnuplot >> code block rather than using Org-plot. > > Thought so. Thanks for confirmation. > >> Gnuplot has an extremely >> comprehensive built in help system, typing "help boxplot" at the gnuplot >> REPL returns the following. > > My gnuplot (Version 4.4 patchlevel 2) returns: > > ,---- > | gnuplot> help boxplot > | Sorry, no help for 'boxplot' > | gnuplot> > `---- > > gnuplot-doc is installed. Do I miss something else? «help > candlestick» works. Is «boxplot» a part of an additional extension > package? > I'm using gnuplot 4.5 patchlevel 0 which is probably where this difference comes in. As I use gnuplot all the time, I find it worthwhile to track the development head for nice new features such as this and beautiful pdf plots through pgf/tikz. > >> Also see the help for "candlestick". Using this information the >> attached Org-mode file generates a candlestick plot using a Gnuplot code >> block. >> >> #+name: sample >>| x | box_min | whisker_min | whisker_high | box_high | >>|---+---------+-------------+--------------+----------| >> >> #+begin_src gnuplot :var data=sample :results silent >> set xrange [0:7] >> plot data using 1:2:3:4:5 with candlesticks >> #+end_src > > Your example works like charm at my side. > > And now I also understand the problem I had: I thought that gnuplot > is able to derive min/max whisker min/max from the data columns by > itself. > > Well - this is bad news to me since I do not see any reasonable way > to use gnuplot for that purpose. I might need to learn R or > Python/matplotlib :-( > Judging from the help output for boxplot it looks as though the boxplot option *will* perform these calculations for you, if you are willing to move to version 4.5 or later. The only downside of using new features in gnuplot is that it is noticeably harder to find help through google. > > Thanks for your help anyway! Happy to help! -- Eric Schulte http://cs.unm.edu/~eschulte/ ^ permalink raw reply [flat|nested] 5+ messages in thread

*2012-01-08 18:05 ` Eric SchulteRe: Generating boxplot (candlestick) diagrams (babel or org-plot)@ 2012-01-09 16:46 ` Karl Voit0 siblings, 0 replies; 5+ messages in thread From: Karl Voit @ 2012-01-09 16:46 UTC (permalink / raw) To: emacs-orgmode * Eric Schulte <eric.schulte@gmx.com> wrote: > Karl Voit <devnull@Karl-Voit.at> writes: > > I'm using gnuplot 4.5 patchlevel 0 which is probably where this > difference comes in. As I use gnuplot all the time, I find it > worthwhile to track the development head for nice new features such as > this and beautiful pdf plots through pgf/tikz. Glad to know that gnuplot is under active development! But CSV? ... geesh seriously? ... >> And now I also understand the problem I had: I thought that gnuplot >> is able to derive min/max whisker min/max from the data columns by >> itself. >> >> Well - this is bad news to me since I do not see any reasonable way >> to use gnuplot for that purpose. I might need to learn R or >> Python/matplotlib :-( > > Judging from the help output for boxplot it looks as though the boxplot > option *will* perform these calculations for you, if you are willing to > move to version 4.5 or later. The only downside of using new features > in gnuplot is that it is noticeably harder to find help through google. Thanks for giving me OT gnuplot support! -- Karl Voit ^ permalink raw reply [flat|nested] 5+ messages in thread

end of thread, other threads:[~2012-01-09 16:46 UTC | newest]Thread overview:5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2012-01-08 15:44 Generating boxplot (candlestick) diagrams (babel or org-plot) Karl Voit 2012-01-08 16:38 ` Eric Schulte 2012-01-08 17:30 ` Karl Voit 2012-01-08 18:05 ` Eric Schulte 2012-01-09 16:46 ` Karl Voit

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