as {timeSeries}R Documentation

timeSeries Class, Coercion and Transformation

Description

Functions and methods dealing with the coercion of 'timeSeries' objects.

Functions to create 'timeSeries' objects from other objects:

as.timeSeries Generic function to convert an object to a 'timeSeries' object,
as.timeSeries.default Returns the unchanged object,
as.timeSeries.numeric Converts from a numeric vector,
as.timeSseries.data.frame Converts from a numeric vector,
as.timeSeries.matrix Converts from a matrix,
as.timeSeries.ts Converts from an object of class 'ts',
as.timeSeries.character Converts from a named demo file,
as.timeSeries.zoo Converts an object of class zoo.

Functions to transform 'timeSeries' objects into other objects:

as.matrix.timeSeries Coerces a 'timeSeries' to a matrix,
as.data.frame.timeSeries Coerces a 'timeSeries' to a data.frame,
as.ts.timeSeries S3: Coerces a 'timeSeries' to a 'ts' object.
as.ts.timeSeries S3: Coerces a 'timeSeries' to a 'logical' object.

Usage

## Default S3 method:
as.timeSeries(x, ...)
## S3 method for class 'ts'
as.timeSeries(x, ...) 
## S3 method for class 'data.frame'
as.timeSeries(x, ...) 
## S3 method for class 'character'
as.timeSeries(x, ...) 
## S3 method for class 'zoo'
as.timeSeries(x, ...) 


## S4 method for signature 'timeSeries'
as.matrix(x, ...)
## S4 method for signature 'timeSeries'
as.ts(x, ...)
## S4 method for signature 'timeSeries'
as.data.frame(x, row.names = NULL, optional = FALSE, ...)
## S4 method for signature 'timeSeries'
as.ts(x, ...)

Arguments

optional

A logical value. If TRUE, setting row names and converting column names (to syntactic names) is optional.

row.names

NULL or a character vector giving the row names for the data frame. Missing values are not allowed.

x

an object which is coerced according to the generic function.

...

arguments passed to other methods.

Value

as.timeSeries

returns a S4 object of class timeSeries.

as.numeric
as.data.frame
as.matrix
as.ts
return depending on the generic function a numeric vector, a data frame, a matrix, or an object of class ts.

Examples

## Create an Artificial timeSeries Object - 
   setRmetricsOptions(myFinCenter = "GMT")
   charvec = timeCalendar()
   data = matrix(rnorm(12))
   TS = timeSeries(data, charvec, units = "RAND")
   TS

## Coerce to Vector - 
   as.vector(TS)
   
## Coerce to Matrix - 
   as.matrix(TS)
  
## Coerce to Data Frame - 
   as.data.frame(TS)
[Package timeSeries version 2160.95 Index]