Description Usage Arguments Value Examples
First two dimensions of the array is interpolated by bicubic grid.
Other dimensions are repeated. If xlim
and ylim
are
not set, range of first two dimensions are used. If dx
and
dy
are not set, half of the grid spacing is used. If x
matrix/array has dimnames
, they are used as coordinates
of the rectangular grid.
1 |
x |
A matrix or higher dimensonal array containing the z[i,j] data values for the grid points (x[i],y[j]). |
xlim |
Lower and upper limits (x1, x2) for x-coordinate used for output. |
ylim |
Lower and upper limits (y1, y2) for y-coordinate used for output. |
dx |
Output grid spacing in x direction. |
dy |
Output grid spacing in y direction. |
par |
Use parallel package to interpolate. |
Interpolated array
1 2 3 4 5 6 7 8 9 10 11 | x <- array(rnorm(1000), dim = c(10, 10, 10))
xi <- ibicubic(x)
str(xi) # should have dim = c(19, 19, 10)
x <- array(rnorm(1000), dim = c(10, 10, 10),
dimnames = list(seq(2, 20, 2), seq(2, 20, 2), NULL))
xi <- ibicubic(x)
str(xi) # note dimnames
xi <- ibicubic(x, xlim = c(4, 6), ylim = c(6, 8))
str(xi) # note dimnames
|
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