I want to save every plot in a PDF document, but only the last plot is saved.
Here is my code:
for pair in indices:
y1 = c[pair[0]]
y2 = c[pair[1]]
fig = plt.figure(figsize=(10,4))
ax1 = fig.add_subplot(111)
ax1.plot(x, y1, "-o", color='b')
plt.ylabel(pair[0])
ax2 = ax1.twinx()
ax2.plot(x, y2,"-o" ,color='r')
for tl in ax2.get_yticklabels():
tl.set_color('r')
plt.title('Reihe')
plt.ylabel(pair[1])
plt.savefig("title2.pdf", dpi=300)