On Sep 22, 2010, at 2:06 PM, gharras wrote:
Hi there,
I really like the time series object from scipy but I have a problem with manipulating dates. Here is a copy from my ipython session:
----------------------------------------------------------------------------- In [748]: myts=ts.time_series(data=n.arange(20).reshape(2,10).T, dates=n.arange(10)+720000, freq='D')
In [749]: myts Out[749]: timeseries( [[ 0 10] [ 1 11] [ 2 12] [ 3 13] [ 4 14] [ 5 15] [ 6 16] [ 7 17] [ 8 18] [ 9 19]], dates = [17-Apr-1972 ... 26-Apr-1972], freq = D)
In [750]: myts.dates[myts.weekday==1]+=1
Shouldn't it be
myts.dates[myts.dates.weekday==1] += 1 myts.dates DateArray([17-Apr-1972, 19-Apr-1972, 19-Apr-1972, 20-Apr-1972, 21-Apr-1972, 22-Apr-1972, 23-Apr-1972, 24-Apr-1972, 26-Apr-1972, 26-Apr-1972], freq='D')
Now, there's still a pb with has_duplicated_dates which is not properly updated. The reason is that we store the status in a cache to avoid having to recalculate it. In most cases, it works, but here, the cache should be deleted... Use myts.dates._reset_cachedinfo() to reset the cache to its default as a workaround. Please fill a ticket as well... Thx