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Tue May  6 13:41:19 2014


FIT:    data read from 'curve_fit.dat' using 1:2
        format = x:z
        x range restricted to [0.00000 : 18.0000]
        #datapoints = 5
        residuals are weighted equally (unit weight)

function used for fitting: a*x*x*x + b*x*x + c*x + d
fitted parameters initialized with current variable values



 Iteration 0
 WSSR        : 1.74237e+07       delta(WSSR)/WSSR   : 0
 delta(WSSR) : 0                 limit for stopping : 1e-05
 lambda	  : 925.034

initial set of free parameter values

a               = 1
b               = 1
c               = 1
d               = 1

After 7 iterations the fit converged.
final sum of squares of residuals : 223142
rel. change during last iteration : -6.65546e-12

degrees of freedom    (FIT_NDF)                        : 1
rms of residuals      (FIT_STDFIT) = sqrt(WSSR/ndf)    : 472.379
variance of residuals (reduced chisquare) = WSSR/ndf   : 223142

Final set of parameters            Asymptotic Standard Error
=======================            ==========================

a               = 5.02854          +/- 4.05         (80.54%)
b               = -132.365         +/- 99.41        (75.1%)
c               = 980.373          +/- 618.1        (63.05%)
d               = 456.667          +/- 878          (192.3%)


correlation matrix of the fit parameters:

               a      b      c      d      
a               1.000 
b              -0.995  1.000 
c               0.961 -0.982  1.000 
d              -0.827  0.865 -0.928  1.000