[Numpy-discussion] Recommendation on reference software [Re: setting decimal accuracy ... ]

2010-03-03 Thread Marco Tuckner
> I suspect a different algorithm, you can tell timeseries.convert how you > want it to interpolate -- who knows what excel is doing. does this mean that you are questioning Excel or more neutrally Spreadsheet programs? What software would you recommend as reference to test Python packages agains

Re: [Numpy-discussion] setting decimal accuracy in array operations (scikits.timeseries)

2010-03-03 Thread Marco Tuckner
Thanks to all who answered. This is really helpful! >> If you are still seeing actual calculation differences, we will >> need to see a complete, self-contained example that demonstrates >> the difference. > > To add a bit more detail -- unless you are explicitly specifying > single precision flo

[Numpy-discussion] setting decimal accuracy in array operations (scikits.timeseries)

2010-03-03 Thread Marco Tuckner
Hello, am using the scikit.timeseries to convert a hourly timeseries to a lower frequency unsing the appropriate function [1]. When I compare the result to the values calculated with a Pivot table in Excel there is a difference in the values which reaches quite high values in the total sum of all