Hello,
I am trying to make a simple pcolor plot with a datetime on the x-axis. I
am able to get a time label on the x-axis fine with a regular plot command,
but it doesn't appear to work if you use pcolor. This simple example below
shows that it does not work. Does anyone have any idea as to why a
datetime can't go on a pcolor plot? What is the best approach is to solve
the problem?
Thanks,
Tim
import numpy as np
import datetime
import random
import matplotlib
import matplotlib.pyplot as plt
# create some random data, one for a line plot, and another for pcolor:
data1 = np.array ([random.random() for k in range(10)])
data2 = np.zeros((10,10))
for i in range(10):
for j in range(10):
data2[i,j] = random.random()
# build datetimes (dts):
dts = []
for k in range(10):
dts.append(datetime.datetime(2012,1,1+k))
# First example, showing a regular plot with datetimes in the x-axis.
fig = plt.figure(1)
fig.clf()
ax = fig.add_subplot(111)
ax.plot(dts,data1)
plt.show()
# Second example, showing a pcolor with datetimes in the x-axis.
# This plot does not work.
fig = plt.figure(2)
fig.clf()
ax = fig.add_subplot(111)
ax.pcolor(dts,np.arange(10),data2)
plt.show()
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