sinc: Calculate sinc values

In rdetools: Relevant Dimension Estimation (RDE) in Feature Spaces

Description

Calculates (normalized) sinc values for each element of a vector/matrix/... etc.,

sinc(x) = sin(pi*x)/(pi*x), x != 0

If x = 0, sinc(x) is defined as 1 (removable singularity in zero).

Usage

sinc(X)

Arguments

X	an arbitrary vector/matrix/... containing numbers

Value

an vector/matrix/... of same size as the argument containing the sinc values for each element

Author(s)

Jan Saputra Mueller

References

http://en.wikipedia.org/wiki/Sinc\_function

See Also

sincdata

Examples

## calculate sinc values of a vector
v <- 1:10
sinc(v)

Example output

 [1]  3.898172e-17 -3.898172e-17  3.898172e-17 -3.898172e-17  3.898172e-17
 [6] -3.898172e-17  3.898172e-17 -3.898172e-17  3.898172e-17 -3.898172e-17

rdetools documentation built on May 2, 2019, 7:02 a.m.