This function evaluates the Lambda matrix Lambda_ij = int X_j(t) phi_i(t) dt for step > 1
Usage
evaluate_lambda_SFD_para_v1(
df,
basis,
regul_time = seq(basis$rangeval[1], basis$rangeval[2], 1),
int_mode = 1,
id_col = "id",
time_col = "time",
subdivisions = 100,
parallel = TRUE
)Arguments
- df
dataframe X(t)
- basis
basis fd object
- regul_time
a vector of time regularization values default basis rangeval per 1
- int_mode
int, integration mode, 1 for integrate, 2 for pracma::trapz
- id_col
default name of the id column
- time_col
default name of the time column
- subdivisions
default parameter of R function integrate; default value : 100
- parallel
a boolean to enable parallel processing, default TRUE