>>C M wrote:
> 1. What exactly must I import (which modules) and how do I import them
> (in the sense of "import x" vs. "from x import y")?
> 2. What arguments does the plot_date() command take and what is format
> of the arguments?
> 3. Do I have to make the conversion from the date format above to the
> matplotlib date format? If so, how?
<<
The code snippet below should answer most of your questions.
2 problems:
autofmt_xdate() did not rotate the minor tick label, I don't now how to
do that.
I could not figure out how to draw minor tick grid lines.
import datetime as DT
import pylab as P
import time
x = ['2007-09-01 12:00:02', '2007-09-02 12:00:02', '2007-09-03 12:00:02']
y = [10, 20, 30]
fmt='%Y-%m-%d %H:%M:%S'
x1=[DT.datetime(*time.strptime(d,fmt)[:6]) for d in x]
dates=P.date2num(x1)
fig = P.figure()
ax = fig.add_subplot(111)
ax.plot_date(dates, y)
ax.xaxis.set_major_locator( P.DayLocator() )
ax.xaxis.set_minor_locator( P.HourLocator(12))
ax.xaxis.set_major_formatter( P.DateFormatter('%Y-%m-%d') )
ax.xaxis.set_minor_formatter( P.DateFormatter('%Y-%m-%d %H:%M:%S'))
ax.grid(True)
fig.autofmt_xdate()
P.show()
--
Bill
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