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Creates an ARIMA state block (representation II)

Usage

.arima2(ar, delta, ma, var = 1)

Arguments

ar

Stationary auto-regressive polynomial, including the constant (=1). True signs.

delta

Non-stationary auto-regressive polynomial, including the constant (=1). True signs.

ma

Moving average polynomial, including the constant (=1). True signs.

var

Variance of the innovations

Value

A raw java state block

Examples

sb<-.arima2(c(1, -.5), NULL, c(1,-.8))
.ssf_P0(sb)
#>       [,1]  [,2]
#> [1,]  1.12 -0.80
#> [2,] -0.80  0.64