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Note that, for computational reasons, fits of time-heterogeneous models GTR nt + BP + Γ4 and CAT + BP + Γ4 were not evaluated.
Instead, the solution will be in any of a dozen ideas that will find the right fit of time and place.
The corresponding SAXS profiles exhibit increased density heterogeneity due to formation of nanograins; fitting of time-resolved SAXS data with a model of arrayed disks reveals slightly thickened (lc = 7.4 8.4 nm) disks of radius R ≈ 9 nm and long period L ≈ 19 nm with polydisperse stacking number slowly enhanced from an average of 1.2 to 2.4.
We treated the external glucose, ATP and P i (i.e. X7, X8 and X9) as off-line variables, using piecewise spline fitting of time-series concentration data with (s, o)= 6,4) (missing time-points were first linearly interpolated from the remaining data).
Alternatively, the Cox model formulation may be changed to have time-varying factors (Appendix 1); however, in most cases the study was powered and designed assuming proportionality, so in most cases the sample size will be inadequate to permit a good fit of time-varying factors (Grambsch and Therneau, 1994).
The red curves are tentative monoexponential fits of the time courses.
Illustrative fits of the time-dependent intensities of Ile382 E (panel A ) and Ile329 E and Ile329 C (panel B ) in the homodimerization study are shown.
Fits of the time-dependent intensity data for the resolved Ile329 C and Ile375 C resonances in the study of the dimerization of [CH3-Ile]p66∆PL with a twofold excess of unlabeled p66.
Additionally, the fitting formula of time-varying concentration decay was discussed to highlight the advantages of the designed hood performance.
Open image in new window Fig. 5 The comparison of fit of multivariate time trend model with the actual value.
The Box-Jenkins methodology [9] applies to ARMA or ARIMA models to find the best fit of a time series to its past values, in order to make forecasts.
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