1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
.help revisions Jun89 math.curfit
.nf
From Davis, September 20, 1999
Added some missing file dependices to the mkpkg file.
pkg/math/curfit/mkpkg
From Davis, March 20, 1997
The weights computed by the WTS_CHISQ option in the routines cvacpts[rd]
were not being forced to be positive as intended.
math/curfit/cvacpts.gx
math/curfit/cvacptsr.x
math/curfit/cvacptsd.x
There was an inconsistency in the way the ncoeff argument to the cvpower[rd]
routines was being used. Ncoeff was intended to be an output argument.
pkg/math/curfit/doc/cvpower.hlp
pkg/math/curfit/cvpower.gx
pkg/math/curfit/cvpowerr.x
pkg/math/curfit/cvpowerd.x
From Davis, June 13, 1995
Added a new routine cvepower to the curfit math package. Cvepower computes
errors of the equivalent power series coefficients for the fitted Legendre
and Chebyshev polynomials and has the same calling sequence as the
cverrors routine.
math/curfit/cvpower.gx
math/curfit/cvpowerr.x
math/curfit/cvpowerd.x
math/curfit/doc/curfit.hd
math/curfit/doc/curfit.men
math/curfit/doc/cvepower.hlp
From Davis, May, 6, 1990
Finished cleaning up the .gx files in curfit.
math/curfit/cverrors.gx
math/curfit/cvpower.gx
math/curfit/cvrefit.gx
math/curfit/cvpower.gx
From Davis, May 6, 1990
Changed the constant from INDEFR to INDEF in the amov$t call in cvpower.gx.
This was causing a problem for the Mac compiler.
From Davis, April 23, 1991
Did some cleaning up in the following .gx files to make the code easier to read.
math/curfit/cv_b1eval.gx
math/curfit/cv_beval.gx
math/curfit/cv_feval.gx
math/curfit/cvaccum.gx
math/curfit/cvacpts.gx
math/curfit/cvchomat.gx
math/curfit/cvfree.gx
math/curfit/cvinit.gx
From Davis, September 18, 1990
Changed the int calls in cvrestore.gx to nint calls. This is a totally
safe way to do the conversion from double precision to integer
quantities in the curfit package and removes any potential precision
problems for task which must read the curfit structure back from a
text database file.
From Davis, July 14, 1988:
The calling sequence for the cverrors routine as been changed to include
an npts argument. This edition removesd the possibility for error when
points have been rejected by setting w[i] = 0.
-----------------------------------------------------------------------------
From Davis, April 30, 1986:
1. Several bugs involving double precision constants in the double precision
version of curfit detected on the SUN have been fixed.
-----------------------------------------------------------------------------
From Davis, March 13, 1986:
1. A double precision version of CURFIT has been installed in IRAF. The entry
points for the double precision version are identical to those of the real
version with the addition of a preceeding d (e.g. cveval and dcveval). All
internal arithmetic is done in double and the data is entered in double.
2. A user function facility has been added to CURFIT. The user may enter
any linear function in the following manner.
extern func
...
call cvinit (cv, USERFNC, nterms, xmin, xmax)
call cvuser (cv, func)
call cvfit (cv, x, y, w, npts, WTS_USER, ier)
call cvvector (cv, x, yfit, npts)
call cvfree (cv)
...
The user function must have the following form.
procedure func (x, nterms, k1, k2, basis)
where
real x x value
int nterms number of basis functions
real k1, k2 optional normalization parameters
real basis[ARB] computed basis functions
-------------------------------------------------------------------------------
.endhelp
|
