hi all,
i'm getting very strange behavior from the matplotlib 'plot' function when
attempting to plot multiple lines. i have a series of x, y data points that
are being generated in a loop and i want to simply plot each of them on the
same plot. my code is:
import matplotlib
matplotlib.use('PDF')
import matplotlib.pyplot as plt
from matplotlib import rc
rc('font',**{'family':'sans-serif','sans-serif':['Helvetica']})
plt.rcParams['ps.useafm'] = True
rc('font',**{'family':'sans-serif','sans-serif':['Helvetica']})
my_fig = plt.figure(figsize=(6,5), dpi=100)
num_lines = 3
for n in range(0, num_lines):
print "Printing line %d" %(n+1)
x = range(0, 100)
y = (ones(100)*(n+1))
plt.plot(x, y)
plt.savefig('plot_example.pdf')
when I do this, it only plots the last line (a horizontal line at y = 3).
how can i get to actually plot all three lines?
more strangely, it shows *stochastic* behavior: sometimes when i run the
code, it generates a green line at y = 3, and other times a blue line. from
plot to plot, the upper bound of the y axis changes, sometimes being 3.15,
sometimes 3.2. i'm not sure why it is doing that.
how can i get it to simply add whatever i plot in the body of the 'for' loop
to the same graph? i tried adding plt.plot() after my call to plt.plot but
that did not fix it.
thank you.
------------------------------------------------------------------------------
Enter the BlackBerry Developer Challenge
This is your chance to win up to $100,000 in prizes! For a limited time,
vendors submitting new applications to BlackBerry App World(TM) will have
the opportunity to enter the BlackBerry Developer Challenge. See full prize
details at: http://p.sf.net/sfu/Challenge
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
