functional_variable-class {MECfda} | R Documentation |
Function-valued variable data.
Description
A s4 class that represents data of a function-valued variable.
The format is
f_i(t),\ t\in\Omega=[t_0,t_0 + T]
where i
is the observation (subject) index, t
represents the measurement (time) points.
Slots
X
a matrix
(x_{ij})_{n\times m}
, wherex_{ij} = f_i(t_j)
, represents the value off_i(t_j)
, each row represent an observation (subject), each column is corresponding to a measurement (time) point.t_0
start of the domain (time period),
t_0
. Default is 0.period
length of the domain (time period),
T
. Default is 1.t_points
sequence of the measurement points,
(t_1,\dots,t_m)
. Default ist_k = t_0 + \frac{(2k-1)T}{2(m+1)}
.
Author(s)
Heyang Ji
Examples
X = array(rnorm(12),dim = 4:3)
functional_variable(X=X,period = 3)
[Package MECfda version 0.2.1 Index]