a data frame. Each column corresponds to a coefficient. Each row corresponds to a random initial vector.
Arguments
bounds
a list of three vectors of length = 2.
Each vector gives the upper and lower limits of an interval from which the initial values are randomly generated.
The default values list(a1 = c(-3, 3), a2 = c(-3, 3), a3 = c(-3, 3)) sets limits of all three initial values to be (-3, 3).
k
a positive integer (default = 50). The number of initial vectors to generate.
Details
Currently the non-linearizable function included in netSEM() is y = a + b * exp(c * x), where a, b and c are coefficients to be estimated.
Thus an initial vector contains three values.
The random initial values are generated by a uniform distribution between the bounds.