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Module « numpy.matlib »

Fonction busday_count - module numpy.matlib

Signature de la fonction busday_count

Description

help(numpy.matlib.busday_count)

busday_count(
    begindates,
    enddates,
    weekmask='1111100',
    holidays=[],
    busdaycal=None,
    out=None
)

Counts the number of valid days between `begindates` and
`enddates`, not including the day of `enddates`.

If ``enddates`` specifies a date value that is earlier than the
corresponding ``begindates`` date value, the count will be negative.

Parameters
----------
begindates : array_like of datetime64[D]
    The array of the first dates for counting.
enddates : array_like of datetime64[D]
    The array of the end dates for counting, which are excluded
    from the count themselves.
weekmask : str or array_like of bool, optional
    A seven-element array indicating which of Monday through Sunday are
    valid days. May be specified as a length-seven list or array, like
    [1,1,1,1,1,0,0]; a length-seven string, like '1111100'; or a string
    like "Mon Tue Wed Thu Fri", made up of 3-character abbreviations for
    weekdays, optionally separated by white space. Valid abbreviations
    are: Mon Tue Wed Thu Fri Sat Sun
holidays : array_like of datetime64[D], optional
    An array of dates to consider as invalid dates.  They may be
    specified in any order, and NaT (not-a-time) dates are ignored.
    This list is saved in a normalized form that is suited for
    fast calculations of valid days.
busdaycal : busdaycalendar, optional
    A `busdaycalendar` object which specifies the valid days. If this
    parameter is provided, neither weekmask nor holidays may be
    provided.
out : array of int, optional
    If provided, this array is filled with the result.

Returns
-------
out : array of int
    An array with a shape from broadcasting ``begindates`` and ``enddates``
    together, containing the number of valid days between
    the begin and end dates.

See Also
--------
busdaycalendar : An object that specifies a custom set of valid days.
is_busday : Returns a boolean array indicating valid days.
busday_offset : Applies an offset counted in valid days.

Examples
--------
>>> import numpy as np
>>> # Number of weekdays in January 2011
... np.busday_count('2011-01', '2011-02')
21
>>> # Number of weekdays in 2011
>>> np.busday_count('2011', '2012')
260
>>> # Number of Saturdays in 2011
... np.busday_count('2011', '2012', weekmask='Sat')
53

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