Re: [Matplotlib-users] Not able to access CSV file:

[Karthikraja V. <vel...@gm...>]

Hello Daniel,

The code you have given is simple and works fab. Thank you very much. But I
wasn't able to find an example which accesses the columns of a CSV files
when I import data through "datafile="filename.csv"" option. It will be
great if you could help with accessing individual columns. What excatly I am
looking for is to access individual coulmns (of the same CSV file), do
calculations using the two coumns and plot them into seperate subplots of
the same graph.
I modified the script a lil bit. Please find it below:

*import matplotlib.pyplot as plt
import pylab
datafile1 = 'ch1_s1_lrr.csv'
datafile2 = 'ch1_s1_baf.csv'*
*a1 = pylab.loadtxt(datafile1, comments='#', delimiter=';')
b1 = pylab.loadtxt(datafile2, comments='#', delimiter=';')*
*v1 = [0,98760,0,1]
v2 = [0,98760,-2,2]*
*plt.figure(1)*
*plt.subplot(4,1,1)
print 'loading', datafile1
plt.axis(v2)
plt.plot(a1, 'r.')*
*plt.subplot(4,1,2)
print 'loading', datafile2
plt.axis(v1)
plt.plot(b1, 'b.')*
*plt.show()*

Thank you very much in advance for your time and suggestions.

Karthik