sincdata {rdetools} | R Documentation |
Function draws n
points uniformly from the interval [a, b], calculates
the sinc (normalized sinc function) values for that points and adds a normal noise with a standard deviation
of noise
to these values.
sincdata(n, noise = 0, a = -4, b = 4)
n |
number of points to generate |
noise |
noise level to add to sinc values, i.e. standard deviation of normal noise |
a |
left bound of interval from which the xs are drawn, a must be smaller than b |
b |
right bound of interval from which the ys are drawn, b must be larger than a |
Randomly generated sinc data
X |
matrix with one column (i.e. a vector, but returned object is a matrix) containing the x-values |
y |
matrix with one row (i.e. a vector, but returned object is a matrix) containing the y-values |
Jan Saputra Mueller
http://en.wikipedia.org/wiki/Sinc_function
## generate 100 data points with noise level 0 ## drawn from the interval [-4,4] sincdata(100) ## generate 1000 data points with noise level 0.7 ## drawn from the interval [-10, 10] sincdata(100, 0.7, a = -10, b = 10)