ABToRPhase: Convert harmonic regression parameters to A*cos+B*sin form
In CliffordLai/harper: Harmonic Regression and Periodicity Test
Description
Usage
Arguments
Value
Author(s)
Examples
Description
The harmonic regression is usually fitted as
z(t) = mu + A*cos(2*pi*f*t) + B*sin(2*pi*f*t)
but is more meaningfully expressed as
z(t) = mu + R*cos(2*pi*f*t + 2*pi*phi),
where R and -0.5<phi=0.5 are the amplitude and phase.
This function converts the parameters to the amplitude-phase
parameterization.
Usage
1
ABToRPhase(AB)
Arguments
AB
Vector containing the A and B coefficients respectively.
Value
vector c(R, phi)
Author(s)
Yuanhao Lai and A. I. McLeod
Examples
1
2
3
#Bloomfield ozone example, p.17
harper:::ABToRPhase(c(-4.205,1.075))
CliffordLai/harper documentation built on May 8, 2019, 1:53 p.m.
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Description Usage Arguments Value Author(s) Examples
Description
The harmonic regression is usually fitted as z(t) = mu + A*cos(2*pi*f*t) + B*sin(2*pi*f*t) but is more meaningfully expressed as z(t) = mu + R*cos(2*pi*f*t + 2*pi*phi), where R and -0.5<phi=0.5 are the amplitude and phase. This function converts the parameters to the amplitude-phase parameterization.
Usage
1 | ABToRPhase(AB)
|
Arguments
AB |
Vector containing the A and B coefficients respectively. |
Value
vector c(R, phi)
Author(s)
Yuanhao Lai and A. I. McLeod
Examples
1 2 3 | #Bloomfield ozone example, p.17
harper:::ABToRPhase(c(-4.205,1.075))
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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