Description Usage Arguments Details Value Author(s) See Also Examples
Uses a series of C functions to calculate the derivative of the objectiveICA function. Offers a choice between the Huber substitution function or the logCosh function.
1 | gradientICA(T, E, N, C, PH, method = c("Huber", "Cosh"))
|
T |
Vector of angles of length p |
E |
Financial time series data of dimension nxd |
N |
Vector of lags that MUST be arranged in ascending order |
C |
Real number C which is used for Huber substitution or Logcosh substitution |
PH |
Phi matrix of weights of dimension q*q |
method |
Choice between use of Huber or logCosh substitution methods |
More details to help above
Gradient of objective value
Erjie Ang ea75@cornell.edu
See
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