seasonal (version 1.10.0)

udg: Diagnostical Statistics

Description

The udg function provides access to a large number of diagnostical statistics. The qs function and the AIC, BIC and logLik methods are wrappers that use udg to access some specific diagnostical statistics.

Usage

udg(x, stats = NULL, simplify = TRUE, fail = TRUE)
qs(x)
# S3 method for seas
AIC(object, ...)
# S3 method for seas
BIC(object, ...)
# S3 method for seas
nobs(object, ...)
# S3 method for seas
logLik(object, ...)

Value

qs returns the QS statistics for seasonality of input and output series and the corresponding p-values.

AIC, BIC, nobs and logLik return the corresponding statistics.

Arguments

x, object

an object of class "seas".

stats

character vector; if specified, only a subset of the available stats are returned. This speeds up the call, as only a subset needs to be type converted. Should be used for programming.

simplify

logical; should the result be simplified to a vector or matrix, if possible?

fail

logical; if TRUE, an error is dropped if an element of stats is missing in names(udg(x)).

...

further arguments (not used)

References

Vignette with a more detailed description: http://www.seasonal.website/seasonal.html

Comprehensive list of R examples from the X-13ARIMA-SEATS manual: http://www.seasonal.website/examples.html

Official X-13ARIMA-SEATS manual: https://www2.census.gov/software/x-13arima-seats/x13as/windows/documentation/docx13as.pdf

See Also

seas() for the main function.

series(), for universal X-13 output extraction.

plot.seas(), for diagnostical plots.

out(), for accessing the full output of X-13ARIMA-SEATS.

Examples

# \donttest{
m <- seas(AirPassengers, x11 = "")

qs(m)
AIC(m)
BIC(m)
nobs(m)
logLik(m)

# a list with all entries from udg
udg(m)

# extracting a few selected stats from udg
udg(m, c("f3.m02", "f3.m05", "qsori"))  # returns a list
udg(m, c("f3.m02", "f3.m05"))           # returns a vector

# faster than:
udg(m)[c("f3.m01", "f3.m02", "qsori")]
# }