when

when-methods

Objects to manipulate sequential and seasonal time series. Sequential time series based on time instants and time durations are handled. Both can be regularly or unevenly spaced (overlapping durations are allowed). Only POSIX* format are used for dates and times. The following classes are provided : 'POSIXcti', 'POSIXctp', 'TimeIntervalDataFrame', 'TimeInstantDataFrame', 'SubtimeDataFrame' ; methods to switch from a class to another and to modify the time support of series (hourly time series to daily time series for instance) are also defined. Tools provided can be used for instance to handle environmental monitoring data (not always produced on a regular time base).

Vladislav Navel

timetools

Seasonal/Sequential (Instants/Durations, Even or not) Time
Series

when function

<dl> <dt>x</dt>
<dd>object from which get the timestamp</dd>
 <dt>...</dt>
<dd>arguments to or from other methods</dd></dl>

Arguments

Retrieve the 'timestamp' of a Time*DataFrame — when

<dl>

 <dt>x</dt>
<dd>object from which get the timestamp</dd>


 <dt>...</dt>
<dd>arguments to or from other methods</dd>

</dl>

when: Retrieve the 'timestamp' of a Time*DataFrame

Description

Usage

Value

Arguments

See Also