plotFixedOrigin: Fixed origin graph
In forvis/forvision: Tools for forecast visualisation and evaluation

Description Usage Arguments Details Value Author(s) See Also Examples

Plots the fixed origin graph showing point forecasts produced for the same time series from the same origin, with different horizons. Forecasts can relate to one method or to a set of alternative methods.

1 2	plotFixedOrigin(ts, fc = NULL, series, origin, method = NULL, graphLib = "dygraph")

`ts`	dataframe containing time series actuals formatted using the Time Series Table Schema (TSTS), use `showTSTS()` to display schema specification details. `ts` must contain `timestamp_dbo` column with timestamps formatted as an appropriate time-based object.
`fc`	dataframe containing forecasts formatted using the Forecast Table Schema (FTS), use `showFTS()` to display schema specification details. `fc` must contain `timestamp_dbo` column with timestamps formatted as an appropriate time-based object. if NULL, forecasts are not shown on the graph.
`series`	series_id for the time series to be shown.
`origin`	origin_timestamp for the origin of the forecast to be shown.
`method`	method_id for the method to be shown.

Uses the following algorithm to plot the graph:

1) select all the forecasts from fc having the specified origin and series_id and containing forecasts produced by methods included in methods,

2) plot point forecasts, use different colors for different methods

3) plot actuals contained in ts for the given series_id.

Current time-based objects supported are Date, POSIXct, chron, yearmon, yearqtr, and timeDate.

a dygraph object containing the fixed origin graph.

Cuong Sai, Andrey Davydenko, and Maxim Shcherbakov.

plotFan, plotFixedHorizon

# obtain data
ts <- example1_ts
fc <- example1_fc

# create the "timestamp_dbo" column
library(zoo)
ts$timestamp_dbo <- as.yearmon(ts$timestamp, format = '%Y')
fc$timestamp_dbo <- as.yearmon(fc$timestamp, '%Y')

# plot a graph for some given origin, series, and method
plotFixedOrigin(ts, fc, "Y1", "1988", "A")
## Not run: 
# produces error because the input dataframes do not contain the "timestamp_dbo" column
plotFixedOrigin(example1_TSTS, example1_FTS, "Y1", "1988", "A")

## End(Not run)