sinpoint {StratigrapheR}

Gives a table of equally sampled points following a sinusoidal function

Description

Gives a table of equally sampled points following a sinusoidal function

Usage

sinpoint(x, y, delta, x0 = 0, pos = 1, phase = 1.5, nwave = 1, nint = 50)

Arguments

x

the x value of the end of the interval

y

the y offset (see next parameter)

delta

the difference between the min- and maxima in y

x0

the x value of the beginning of the interval (0 as default)

pos

an integer specifying the kind of vertical offset; should the sinusoidal function be shifted so that y is the first value (pos = 1, is the default), the last value (2),the minimum (3) or the maximum (4) of the function

phase

the phase of the function at x0 in multiples of pi (1.5 as default; begins at its lowest)

nwave

number of complete sinuses waves (1 as default)

nint

number of intervals for the sampling (50 as default)

Value

a table of points following a sinusoidal function

Examples

res <- sinpoint(c(4,5), 5, 1, x0 = c(0,1), pos = 3)

plot(res$x, res$y)

multilines(res$i, res$x, res$y, col = c("black" ,"red"), type = "o")