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- name:
deriv
- synopsis:
deriv inputfile outputfile
[-interval= integer] [-x_sigma= value] [-y_sigma= value]
- description:
deriv takes the finite-difference derivative of a data set with
optional error propagation, using
where
and
where m is specified by the user. Strictly, the points should be equispaced
(if not, use m=1).
- files:
inputfile is the input data set, the derivative of which is placed in outputfile.
- options:
- interval
-
The interval (in numbers of data point) over which the
derivative is approximated. This is m in the equation above. The default interval is 1.
- sigma_x
-
The uncertainty value to assign to the x (ordinate) input values.
- sigma_y
-
The uncertainty value to assign to the y (ordinate) input values.
- see also:
filter,
integ.
borland@aps.anl.gov
Thu Dec 23 15:13:43 CST 1993