The script plottest.py.txt reads the data file (out.txt) and creates the plot (myfig.png); however, I am unable to format the dates ... they always print as floats .. help the files plottest.py.txt, out.txt and myfig.png are attached Thanks Andy
import time
import csv
import matplotlib
matplotlib.use('Agg')
from pylab import datestr2num
import matplotlib.mlab as ml
import matplotlib.pyplot as plt
import matplotlib.dates as mdates
t=[]
v1=[]
v2=[]
v3=[]
FileReader = csv.reader(open('out.txt'), delimiter=' ', quotechar='"')
for row in FileReader:
# t.append(time.mktime(time.strptime(row[0], '%Y-%m-%d %H:%M:%S')))
t.append(float(row[0]))
v1.append(float(row[1]))
v2.append(float(row[2]))
v3.append(float(row[3]))
for tstamp in t:
print tstamp
for val in v1:
print val
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(t,v1)
ax.fmt_xdata = mdates.DateFormatter('%Y-%m-%d %H:%M:%S')
fig.autofmt_xdate()
plt.ylabel('iops')
plt.xlabel('tstamp')
# plt.show()
plt.savefig('myfig')
# load('out.txt', delimiter=',',converters={0:datestr2num}, skiprows=1,
usecols=(0,2),unpack=True)
1240003749.56 5356 3074 253 0 1240003754.71 3173 2003 272 0 1240003755.93 7326 3609 126 0 1240003756.72 7326 3609 126 0 1240003757.42 3534 1655 747 0 1240003758.22 3534 1655 747 0 1240003759.3 2401 1290 225 0 1240003760.81 2259 1086 199 0 1240003761.98 1958 1162 347 0
<<attachment: myfig.png>>
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