ts_arima {daltoolbox}

ARIMA

Description

Creates a time series prediction object that uses the AutoRegressive Integrated Moving Average (ARIMA). It wraps the forecast library.

Usage

ts_arima()

Value

a ts_arima object.

Examples

data(sin_data)
ts <- ts_data(sin_data$y, 0)
ts_head(ts, 3)

samp <- ts_sample(ts, test_size = 5)
io_train <- ts_projection(samp$train)
io_test <- ts_projection(samp$test)

model <- ts_arima()
model <- fit(model, x=io_train$input, y=io_train$output)

prediction <- predict(model, x=io_test$input[1,], steps_ahead=5)
prediction <- as.vector(prediction)
output <- as.vector(io_test$output)

ev_test <- evaluate(model, output, prediction)
ev_test