autoplot.ts: Automatically create a ggplot for time series objects
Description
autoplot takes an object of type ts or mts and creates a ggplot object suitable for usage with stat_forecast.
fortify.ts takes a ts object and converts it into a data frame (for usage with ggplot2).
Usage
## S3 method for class 'ts':
autoplot(object, ...)
## S3 method for class 'mts':
autoplot(object, ...)
## S3 method for class 'ts':
fortify(model,data, ...)