Time Scales — calendar • chronos

Converts between BP (Before Present), CE (Common Era) and b2k (before 2000) time scales.

Usage

elapse(object, ...)

BP_to_CE(object)

CE_to_BP(object)

b2k_to_BP(object)

b2k_to_CE(object)

is_BP(object)

is_CE(object)

is_b2k(object)

# S4 method for MCMC
is_BP(object)

# S4 method for PhasesMCMC
is_BP(object)

# S4 method for CumulativeEvents
is_BP(object)

# S4 method for ActivityEvents
is_BP(object)

# S4 method for OccurrenceEvents
is_BP(object)

# S4 method for ProxyRecord
is_BP(object)

# S4 method for MCMC
is_CE(object)

# S4 method for PhasesMCMC
is_CE(object)

# S4 method for CumulativeEvents
is_CE(object)

# S4 method for ActivityEvents
is_CE(object)

# S4 method for OccurrenceEvents
is_CE(object)

# S4 method for ProxyRecord
is_CE(object)

# S4 method for MCMC
is_b2k(object)

# S4 method for PhasesMCMC
is_b2k(object)

# S4 method for CumulativeEvents
is_b2k(object)

# S4 method for ActivityEvents
is_b2k(object)

# S4 method for OccurrenceEvents
is_b2k(object)

# S4 method for ProxyRecord
is_b2k(object)

# S4 method for MCMC
elapse(object, origin = 1)

# S4 method for numeric
BP_to_CE(object)

# S4 method for matrix
BP_to_CE(object)

# S4 method for array
BP_to_CE(object)

# S4 method for MCMC
BP_to_CE(object)

# S4 method for PhasesMCMC
BP_to_CE(object)

# S4 method for numeric
CE_to_BP(object)

# S4 method for matrix
CE_to_BP(object)

# S4 method for array
CE_to_BP(object)

# S4 method for MCMC
CE_to_BP(object)

# S4 method for PhasesMCMC
CE_to_BP(object)

# S4 method for numeric
b2k_to_BP(object)

# S4 method for matrix
b2k_to_BP(object)

# S4 method for array
b2k_to_BP(object)

# S4 method for ProxyRecord
b2k_to_BP(object)

# S4 method for numeric
b2k_to_CE(object)

# S4 method for matrix
b2k_to_CE(object)

# S4 method for array
b2k_to_CE(object)

# S4 method for ProxyRecord
b2k_to_CE(object)

Arguments

object: An object (typically an MCMC object).
...: Currently not used.
origin: An integer giving the position of the column corresponding to the event from which elapsed time is calculated.

Value

elapse() returns an object of the same class as object with an elapsed time scale.
BP_to_CE(), CE_to_BP(), b2k_to_CE and b2k_to_BP return an object of the same class as object.
is_BP(), is_CE(), is_b2k() return a logical scalar.

An object of the same sort as object with a new time scale.

Note

There is no year \(0\) in BCE/CE scale.

Author

N. Frerebeau

Examples

## Coerce to MCMC
eve <- as_events(events, calendar = "CE", iteration = 1)

## Plot events
## BP
eve_BP <- CE_to_BP(eve)
plot(eve_BP)
#> Picking joint bandwidth of 15.1


## CE
eve_CE <- BP_to_CE(eve_BP)
plot(eve_CE)
#> Picking joint bandwidth of 15.1


## Elapsed origin
eve_elapse <- elapse(eve, origin = 4)
plot(eve_elapse)
#> Picking joint bandwidth of 20.3