Re: [Matplotlib-users] Format date tick labels

2012-10-12 Thread Damon McDougall
On Thursday, October 11, 2012, Benjamin Root wrote: On Thu, Oct 11, 2012 at 4:53 PM, Mark Lawrence breamore...@yahoo.co.ukjavascript:_e({}, 'cvml', 'breamore...@yahoo.co.uk'); wrote: On 11/10/2012 10:55, Damon McDougall wrote: On Wed, Oct 10, 2012 at 5:00 PM, Benjamin Root

Re: [Matplotlib-users] Format date tick labels

2012-10-12 Thread Ethan Gutmann
On Oct 11, 2012, at 2:58 PM, Benjamin Root wrote: On Thu, Oct 11, 2012 at 4:53 PM, Mark Lawrence breamore...@yahoo.co.uk wrote: On 11/10/2012 10:55, Damon McDougall wrote: Am I missing something here? Are seconds just floats internally? A delta of 1e-6 is nothing (pardon the pun). A

Re: [Matplotlib-users] Format date tick labels

2012-10-12 Thread Benjamin Root
On Friday, October 12, 2012, Ethan Gutmann wrote: On Oct 11, 2012, at 2:58 PM, Benjamin Root wrote: On Thu, Oct 11, 2012 at 4:53 PM, Mark Lawrence breamore...@yahoo.co.ukjavascript:_e({}, 'cvml', 'breamore...@yahoo.co.uk'); wrote: On 11/10/2012 10:55, Damon McDougall wrote: Am I

Re: [Matplotlib-users] Format date tick labels

2012-10-12 Thread Mark Lawrence
On 12/10/2012 20:38, Ethan Gutmann wrote: I'm a little confused by this attitude. I recognize that there are issues around dates, I've written a few date libraries myself to get around insane excel date issues (pop quiz for anyone at MS, was 1900 a leap year?) or just to simplify APIs for

Re: [Matplotlib-users] Format date tick labels

2012-10-12 Thread Ethan Gutmann
On Oct 12, 2012, at 4:15 PM, Mark Lawrence wrote: On 12/10/2012 20:38, Ethan Gutmann wrote: I'm a little confused by this attitude. I recognize that there are issues around dates, I've written a few date libraries myself to get around insane excel date issues (pop quiz for anyone at MS,

Re: [Matplotlib-users] Format date tick labels

2012-10-11 Thread Damon McDougall
On Wed, Oct 10, 2012 at 5:00 PM, Benjamin Root ben.r...@ou.edu wrote: On Wed, Oct 10, 2012 at 10:55 AM, Mark Lawrence breamore...@yahoo.co.uk wrote: On 10/10/2012 15:41, Mark Lawrence wrote: On 10/10/2012 14:29, Benjamin Root wrote: I know of a few people who have difficulties with

Re: [Matplotlib-users] Format date tick labels

2012-10-11 Thread Mark Lawrence
On 11/10/2012 10:55, Damon McDougall wrote: On Wed, Oct 10, 2012 at 5:00 PM, Benjamin Root ben.r...@ou.edu wrote: On Wed, Oct 10, 2012 at 10:55 AM, Mark Lawrence breamore...@yahoo.co.uk wrote: On 10/10/2012 15:41, Mark Lawrence wrote: On 10/10/2012 14:29, Benjamin Root wrote: I know of a

Re: [Matplotlib-users] Format date tick labels

2012-10-11 Thread Benjamin Root
On Thu, Oct 11, 2012 at 4:53 PM, Mark Lawrence breamore...@yahoo.co.ukwrote: On 11/10/2012 10:55, Damon McDougall wrote: On Wed, Oct 10, 2012 at 5:00 PM, Benjamin Root ben.r...@ou.edu wrote: On Wed, Oct 10, 2012 at 10:55 AM, Mark Lawrence breamore...@yahoo.co.uk wrote: On

Re: [Matplotlib-users] Format date tick labels

2012-10-10 Thread Benjamin Root
On Mon, Oct 8, 2012 at 12:06 PM, Jianbao Tao jianbao@gmail.com wrote: Thanks, Ben. Your fix works when the view interval is greater than 1 minute, but not so much when the view interval is less than one minute. BTW, what I am trying to accomplish is to use matplotlib to plot

Re: [Matplotlib-users] Format date tick labels

2012-10-10 Thread Mark Lawrence
On 10/10/2012 14:29, Benjamin Root wrote: I know of a few people who have difficulties with matplotlib's datetime handling, but they are usually operating on the scale of milliseconds or less (lightning data), in which case, one is already at the edge of the resolution handled by python's

Re: [Matplotlib-users] Format date tick labels

2012-10-10 Thread Mark Lawrence
On 10/10/2012 15:41, Mark Lawrence wrote: On 10/10/2012 14:29, Benjamin Root wrote: I know of a few people who have difficulties with matplotlib's datetime handling, but they are usually operating on the scale of milliseconds or less (lightning data), in which case, one is already at the edge

Re: [Matplotlib-users] Format date tick labels

2012-10-10 Thread Benjamin Root
On Wed, Oct 10, 2012 at 10:55 AM, Mark Lawrence breamore...@yahoo.co.ukwrote: On 10/10/2012 15:41, Mark Lawrence wrote: On 10/10/2012 14:29, Benjamin Root wrote: I know of a few people who have difficulties with matplotlib's datetime handling, but they are usually operating on the scale

Re: [Matplotlib-users] Format date tick labels

2012-10-08 Thread Benjamin Root
On Sun, Oct 7, 2012 at 6:47 PM, Jianbao Tao jianbao@gmail.com wrote: fig = figure() tsta = num2epoch(date2num(datetime.datetime.now())) tarr = tsta + arange(0, 60*60*0.5, 0.1)# half hour, dt = 0.1 sec x = np.array(num2date(epoch2num(tarr))) nt = len(tarr) y = randn(nt)

Re: [Matplotlib-users] Format date tick labels

2012-10-08 Thread Jianbao Tao
Thanks, Ben. Your fix works when the view interval is greater than 1 minute, but not so much when the view interval is less than one minute. BTW, what I am trying to accomplish is to use matplotlib to plot time-series data that can be as long as several days and as short as a few milliseconds.

[Matplotlib-users] Format date tick labels

2012-10-07 Thread Jianbao Tao
Hi, I am having trouble to customize the format of date axis tick labels. Below is a snippet to demonstrate my problem: #- code # Make an example plot. fig = figure() tsta =