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Old 06-01-2009, 12:29 PM   #1
pgb205
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Registered: Nov 2007
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matplotlib--graphing against time


let say i have two arrays
time_array=[00:00:00,00:00:10...17:59:50,18:00:00]
and
data_array=[1,12..34,2]
both of them with the same number of elements.
I want to graph data_array on y axis vs time_array on x_axis.
However, I'm unable to do this using matplotlib because it complains time_array is not in numeric form.
I guess I should do plot=(data_array) and somehow mark the x axis with
time at periodic intervals. Anyone can suggest how to do this exactly?

thanks
 
Old 06-01-2009, 01:35 PM   #2
Sergei Steshenko
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Registered: May 2005
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Quote:
Originally Posted by pgb205 View Post
let say i have two arrays
time_array=[00:00:00,00:00:10...17:59:50,18:00:00]
and
data_array=[1,12..34,2]
both of them with the same number of elements.
I want to graph data_array on y axis vs time_array on x_axis.
However, I'm unable to do this using matplotlib because it complains time_array is not in numeric form.
I guess I should do plot=(data_array) and somehow mark the x axis with
time at periodic intervals. Anyone can suggest how to do this exactly?

thanks

http://www.mathworks.com/access/help...p=mss&ei=UTF-8 ->

Specifying Tick-Mark Location and Labeling ->

Code:
set(gca,'XTick',-pi:pi/2:pi)
set(gca,'XTickLabel',{'-pi','-pi/2','0','pi/2','pi'})
 
  


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