date2days

Convert date mm/dd/yyyy to days since the 1st of
 startmonth, starting with days = 1 for the 1st day of startmonth.

Functions to estimate start and duration of moult from moult
data, based on models developed in Underhill
and Zucchini (1988, 1990).

Birgit Erni

moult

Models for Analysing Moult in Birds

date2days function

<dl> <dt>date</dt>
<dd>date character string with format as specified in dateformat</dd> <dt>dateformat</dt>
<dd>string specifying format of date, e.g. "mm/dd/yyyy",
 "yyyy-dd-mm", "dd--mm" etc.</dd> <dt>startmonth</dt>
<dd>integer between 1 and 12 indicating month from which
 to start counting.</dd>
</dl>

Arguments

Author

Convert date to day count — date2days

<dl>

 <dt>date</dt>
<dd>date character string with format as specified in dateformat</dd>

 <dt>dateformat</dt>
<dd>string specifying format of date, e.g. "mm/dd/yyyy",
 "yyyy-dd-mm", "dd--mm" etc.</dd>

 <dt>startmonth</dt>
<dd>integer between 1 and 12 indicating month from which
 to start counting.</dd>
</dl>

date2days: Convert date to day count

Description

Usage

Value

Arguments

Author

Examples