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REGRESSION
ANALYSIS CALIBRATION CURVE FITTING
These
programs calculate equations for curves obtained by plotting a graph of the
values of an observed dependent variable Y for known values of the independent
variable X. i.e. Y = F(X)
The program can then calculate either X or Y for
a given value of the other variable which is useful in instrumental analysis.
All the
curve equations created by the programs are first and second degree polynomials
(X
SQUARE) with the general form
Y = A0 + A1(X) + A2(X^2) for X <= XJ
Y = B0 + B1(X) + B2(X^2)
for X >= XJ
where XJ is the value of X where the 2 curve sections join
together.
DOWNLOAD CURVE FITTING PROGRAM X2CURVES (tested on W98, WXP, & VISTA HPR)
DOWNLOAD CURVE FITTING PROGRAM X1CURVES (tested
on DOS 3.3, 4.01,5.0, & 6.22)
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