w3fi82.f File Reference

Convert to second diff array. More...

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Functions/Subroutines
subroutine	w3fi82 (IFLD, FVAL1, FDIFF1, NPTS, PDS, IGDS)
	Accept an input array, convert to array of second differences. More...

Detailed Description

Convert to second diff array.

Author

Bill Cavanaugh

Date

1993-07-14

Definition in file w3fi82.f.

Function/Subroutine Documentation

w3fi82()

subroutine w3fi82	(	integer, dimension(*)	IFLD,
		real	FVAL1,
		real	FDIFF1,
		integer	NPTS,
		character*1, dimension(*)	PDS,
		integer, dimension(*)	IGDS
	)

Accept an input array, convert to array of second differences.

return the original first value and the first first-difference as separate values. align data in boustrephedonic style, (alternate row reversal).

Program history log:

• Bill Cavanaugh 1993-07-14
• Bill Cavanaugh 1994-01-27 Added reversal of even numbered rows (boustrophedonic processing)
• Bill Cavanaugh 1994-03-02 Corrected improper ordering of even numbered rows
• Ebisuzaki 1999-12-06 Linux port

Parameters

[in,out]	IFLD	[in] Integer input array [out] Second differenced field
[in]	NPTS	Number of points in array
[in]	IGDS	(5) Number of rows in array (4) Number of columns in array
[in]	PDS	(8) Flag indicating presence of gds section
[out]	FVAL1	Floating point original first value
[out]	FDIFF1	Floating point first first-difference

Author

Bill Cavanaugh

Date

1993-07-14

Definition at line 30 of file w3fi82.f.