Description Usage Arguments Value Author(s)
Approximation of the derivative dy/dx
1 |
y |
|
x |
|
na.rm |
can be set to FALSE for performance reasons |
doSort |
can be set to FALSE for performance reasons |
numeric vector of length( x[!is.na(x)] ) with two sided difference approximation (y_+1 - y_-1)/(x_+1 - x_-1) and single sided approximations at the edges
Thomas Wutzler
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