dfourier_shape {Momocs} | R Documentation |
Calculates and draws 'dfourier' shapes
Description
Calculates shapes based on 'Discrete cosine transforms' given harmonic coefficients (see dfourier) or can generate some random 'dfourier' shapes. Mainly intended to generate shapes and/or to understand how dfourier works.
Usage
dfourier_shape(A, B, nb.h, nb.pts = 60, alpha = 2, plot = TRUE)
Arguments
A |
vector of harmonic coefficients |
B |
vector of harmonic coefficients |
nb.h |
if |
nb.pts |
if |
alpha |
The power coefficient associated with the (usually decreasing) amplitude of the harmonic coefficients (see efourier_shape) |
plot |
logical whether to plot the shape |
Value
a list of shapes or a plot
See Also
Other dfourier:
dfourier_i()
,
dfourier()
Examples
# some signatures
panel(coo_align(Opn(replicate(48, dfourier_shape(alpha=0.5, nb.h=6)))))
# some worms
panel(coo_align(Opn(replicate(48, dfourier_shape(alpha=2, nb.h=6)))))
[Package Momocs version 1.4.1 Index]