Made a boo boo, the image is not showing so here it is again
···
-----Original Message-----
From: matplotlib-users-bounces@lists.sourceforge.net
[mailto:matplotlib-users-bounces@lists.sourceforge.net] On Behalf Of
Bill Dandreta
Sent: Friday, July 21, 2006 3:09 PM
To: matplotlib-users@lists.sourceforge.net
Subject: Re: [Matplotlib-users] iregular data set
Rodrigues, Joseph wrote:
I have a question (new user here): I have datasets of irregular time
spaced data and am having a problem with Matplot lib.
I am plotting two datasets: one is continuous time series data (simple
line chart) and the other irregular time series data.
The problem I have is: MatPlotLib is interpolating data for the
irregular data where there is no data.
So if I have data from 1985 - 1989 then no data for 1990 - 1994,
matplotlib is drawing a line connecting the missing data.
How does one plot irregular spaced time series data?
The way I do that is index the time data and plot against the index.
1985--0
1986--1
.
.
.
1989--4
1995--5
etc.
Bill
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Made a boo boo, the image is not showing so here it is again
From: matplotlib-users-bounces@lists.sourceforge.net
[mailto:matplotlib-users-bounces@lists.sourceforge.net] On Behalf Of
Bill Dandreta
Sent: Friday, July 21, 2006 3:09 PM
To: matplotlib-users@lists.sourceforge.net
Subject: Re: [Matplotlib-users] iregular data set
Rodrigues, Joseph wrote:
I have a question (new user here): I have datasets of irregular time
spaced data and am having a problem with Matplot lib.
I am plotting two datasets: one is continuous time series data (simple
line chart) and the other irregular time series data.
The problem I have is: MatPlotLib is interpolating data for the
irregular data where there is no data.
So if I have data from 1985 - 1989 then no data for 1990 - 1994,
matplotlib is drawing a line connecting the missing data.
How does one plot irregular spaced time series data?
From what I see matplotlib is just connecting points. Just because your x values have what you think are gaps, matplotlib doesn't know that. I assume your two calls to plot use the x and y values for each plot. Matplotlib will connect points that are sequential no matter what the x values are. There may be ways to assign the y values as NANs for those "missing" x values.
···
-----Original Message-----
--
Cheers,
Lou Pecora
Code 6362
Naval Research Lab
Washington, DC 20375
USA
Ph: +202-767-6002
email: pecora@...1125...
