print method and y_time

[AQLT]

I think the parameter y_time should be optional. For example, the print method currently returns an error if the parameter is not specified

mod <- rjd3highfreq::fractionalAirlineDecomposition(
    y = forecast::taylor,
    period = 2*24*7,
    log = FALSE)
mod
#> Number of observations:  4032
#> 
#> Estimate MA parameters:
#>         MA_parameter       Coef    Coef_SE     Tstat
#>             Theta(1) -0.1792827 0.01659386 -10.80416
#>  Theta(period = 336)  0.3006010 0.01774463  16.94039
#> Additive model
#> 
#> Decomposition:
#> Error in eval(substitute(select), nl, parent.frame()): object 'y_time' not found

[TanguyBarthelemy]

Yes it's an optional argument.
I left a typo in the print code. I'm going to make a pull request.

[TanguyBarthelemy]

It's corrected!