Description Usage Arguments Details Value Author(s) References
Calculates the gradient of generalized exponential MIDAS lag specification
1 | genexp_gradient(p, d, m)
|
p |
a vector of parameters |
d |
number of coefficients |
m |
the frequency, currently ignored |
Generalized exponential MIDAS lag specification is a generalization of exponential Almon lag. It is defined as a product of first order polynomial with exponent of the second order polynomial. This spefication was used by V. Kvedaras and V. Zemlys (2012).
a vector of coefficients
Virmantas Kvedaras, Vaidotas Zemlys
Kvedaras V., Zemlys, V. Testing the functional constraints on parameters in regressions with variables of different frequency Economics Letters 116 (2012) 250-254
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