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Commite277333

Browse files
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FIX: translate timedeltas in _to_ordinalf
FIX: translate timedelta64 in _dt64_to_ordinalf
1 parent63fe909 commite277333

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2 files changed

+72
-10
lines changed

2 files changed

+72
-10
lines changed

‎lib/matplotlib/dates.py

Lines changed: 39 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -222,6 +222,10 @@ def _to_ordinalf(dt):
222222
dt=dt.astimezone(UTC)
223223
tzi=UTC
224224

225+
ifisinstance(dt,datetime.timedelta):
226+
base=dt/datetime.timedelta(days=1)
227+
returnbase
228+
225229
base=float(dt.toordinal())
226230

227231
# If it's sufficiently datetime-like, it will have a `date()` method
@@ -251,6 +255,11 @@ def _dt64_to_ordinalf(d):
251255
because we do times compared to ``0001-01-01T00:00:00`` (plus one day).
252256
"""
253257

258+
if (isinstance(d,np.timedelta64)or
259+
(isinstance(d,np.ndarray)and
260+
np.issubdtype(d.dtype,np.timedelta64))):
261+
returnd/np.timedelta64(1,'D')
262+
254263
# the "extra" ensures that we at least allow the dynamic range out to
255264
# seconds. That should get out to +/-2e11 years.
256265
# NOTE: First cast truncates; second cast back is for NumPy 1.10.
@@ -271,6 +280,12 @@ def _dt64_to_ordinalf(d):
271280
returndt
272281

273282

283+
def_dt64_to_ordinalf_iterable(d):
284+
dnew=np.zeros(len(d))
285+
fornn,ddinenumerate(d):
286+
dnew[nn]=_dt64_to_ordinalf(dd)
287+
returndnew
288+
274289
def_from_ordinalf(x,tz=None):
275290
"""
276291
Convert Gregorian float of the date, preserving hours, minutes,
@@ -405,22 +420,36 @@ def date2num(d):
405420
Gregorian calendar is assumed; this is not universal practice.
406421
For details see the module docstring.
407422
"""
423+
408424
ifhasattr(d,"values"):
409425
# this unpacks pandas series or dataframes...
410426
d=d.values
411-
ifnotnp.iterable(d):
412-
if (isinstance(d,np.datetime64)or (isinstance(d,np.ndarray)and
413-
np.issubdtype(d.dtype,np.datetime64))):
414-
return_dt64_to_ordinalf(d)
415-
return_to_ordinalf(d)
416427

417-
else:
418-
d=np.asarray(d)
419-
ifnp.issubdtype(d.dtype,np.datetime64):
428+
ifnotnp.iterable(d)andnotisinstance(d,np.ndarray):
429+
# single value logic...
430+
if(isinstance(d,np.datetime64)orisinstance(d,np.timedelta64)):
420431
return_dt64_to_ordinalf(d)
421-
ifnotd.size:
422-
returnd
432+
else:
433+
return_to_ordinalf(d)
434+
435+
elif (isinstance(d,np.ndarray)and
436+
(np.issubdtype(d.dtype,np.datetime64)or
437+
np.issubdtype(d.dtype,np.timedelta64))):
438+
# array with all one type of datetime64 object.
439+
return_dt64_to_ordinalf(d)
440+
441+
eliflen(d):
442+
# this is a list or tuple...
443+
if (isinstance(d[0],np.datetime64)or
444+
isinstance(d[0],np.timedelta64)):
445+
return_dt64_to_ordinalf_iterable(d)
423446
return_to_ordinalf_np_vectorized(d)
447+
elifhasattr(d,'size')andnotd.size:
448+
# this elif doesn't get tested, but leaving here in case anyone
449+
# needs it.
450+
returnd
451+
else:
452+
return []
424453

425454

426455
defjulian2num(j):

‎lib/matplotlib/tests/test_dates.py

Lines changed: 33 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -680,3 +680,36 @@ def test_datetime64_in_list():
680680
dt= [np.datetime64('2000-01-01'),np.datetime64('2001-01-01')]
681681
dn=mdates.date2num(dt)
682682
assertnp.array_equal(dn, [730120.,730486.])
683+
684+
685+
deftest_timedelta():
686+
"""
687+
Test that timedelta objects are properly translated into days.
688+
"""
689+
dt= [datetime.datetime(2000,1,1,0,0,0),
690+
datetime.timedelta(days=1,hours=2)]
691+
assertmdates.date2num(dt[1])==1+2/24
692+
# check that mixed lists work....
693+
assertmdates.date2num(dt)[0]==730120.0
694+
assertmdates.date2num(dt)[1]==1+2/24
695+
696+
dt= (np.datetime64('2000-01-01'),
697+
np.timedelta64(26,'h'))
698+
assertmdates.date2num(dt[1])==1+2/24
699+
# check that mixed lists work....
700+
assertmdates.date2num(dt)[0]==730120.0
701+
assertmdates.date2num(dt)[1]==1+2/24
702+
703+
dt= [datetime.timedelta(days=1,hours=1),
704+
datetime.timedelta(days=1,hours=2)]
705+
assertmdates.date2num(dt)[0]==1+1/24
706+
assertmdates.date2num(dt)[1]==1+2/24
707+
708+
dt= (np.timedelta64(25,'h'),
709+
np.timedelta64(26,'h'))
710+
assertmdates.date2num(dt)[0]==1+1/24
711+
assertmdates.date2num(dt)[1]==1+2/24
712+
713+
dt=np.array([25,26],dtype='timedelta64[h]')
714+
assertmdates.date2num(dt)[0]==1+1/24
715+
assertmdates.date2num(dt)[1]==1+2/24

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