Re: Timeframe omission.
- Noah, the issue of omitting holidays has been raised before and turns out
to be a hairy one, since date to inches translation is done by arithmetic.
Omitting certain hours would be a similar situation.
No solution to these issues has been presented, other than pre-processing
your data somehow to perform the omission transformation.
On Wed, 28 Jun 2006, Steve Grubb wrote:
> ---------- Forwarded message ----------
> From: Noah Downs <noah_o_downs@...>
> Date: Jun 17, 2006 2:47 PM
> Subject: Timeframe omission.
> To: stevegrubb@...
> I am very grateful for the tremendous effort that you have put into
> developing this wonderful program. Ploticus is one of the most shining
> examples of what open source can be and is. I thank you for sacrificing to
> make this program available to the world.
> I am developing a financial charting application using ploticus. I have come
> unto a dilemma, in plotting for example a 60 minute chart, which represents
> 60 minutes of data with a candlestick or bar. The dilemma is that there are
> different times in which the data begins and ends.
> So say we're plotting 45 data points, which begin on a Thursday, end on
> Friday at 2PM, and resumes on Sunday at 4PM. I do not see a way to omit the
> timeframe where there is no data. In this case I am using the datetime scale
> The same problem exists for a daily chart where there are holidays with no
> data, which you have on your todo list.
> Is there a way to make these charts that I have overlooked? It seems that
> the only workaround is to use categories as scale units.
> My knowledge of C is rudamentary and limited, but I am interested
> contributing to this project is that is possible. What do you think about
> the feature of omitting certain dates and times, similar to omitting
> holidays but extending to hours and minutes?
> Noah Downs
> Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates
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Stephen C. Grubb scg@... x-6633
Scientific Software Engineer, The Jackson Laboratory
600 Main Street Bar Harbor, Maine 04609 USA