plot_histogram improvments

[wdjoyner]

Since R's histogram plotting is not working for me, I added some functionality to dft.py's plot_histogram method for IndexedSequences.
Hope this is useful to others.

CC: @cswiercz

Component: graphics

Keywords: plot histogram

Author: David Joyner

Reviewer: Chris Swierczewski

Merged: sage-4.1.alpha2

Issue created by migration from https://trac.sagemath.org/ticket/6162

[wdjoyner]

Attachment: trac_6162-histogram.patch.gz

based on 4.0.rc1

[wdjoyner]

comment:1

This passes sage -testall on an amd64 ubuntu 9.04 machine.

[wdjoyner]

Description changed:

--- 
+++ 
@@ -1,2 +1,2 @@
 Since R's histogram plotting is not working for me, I added some functionality to dft.py's plot_histogram method for IndexedSequences.
-Hope this is useful to other.
+Hope this is useful to others.

[ncalexan]

comment:4

Original patch was not great; this one is more configurable, fixes a bug in the plot command, and fixes some of the zillion typos throughout.

wdj, ispell-comments-and-strings in emacs is your friend. That and flyspell-mode.

[ncalexan]

Changed keywords from none to plot histogram

[ncalexan]

Author: Nick Alexander