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# fit+weight

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# fit+weight

{ FIT+WEIGHT.PDE

This test shows the use of spatially-varying weights in the FIT function.

There are no variables or equations here, just a domain and some tabular

data which is FIT in different ways.

The weight declared in the FIT statement is effectively the square of the

spatial distance over which variations are smoothed.

 }     title 'Test Variable-Weight FIT'     definitions      u = table('table.tbl')       boundaries     region 1       start(0,10)       line to (0,0) to (10,0) to (10,10) to close     plots       grid(x,y)       surface(u)       contour(u)       contour(fit(u))   as 'unweighted'       contour(fit(u,0.2))   as 'constant weight'       contour(fit(u,0.2*(x-5)^2)) as 'side-weights'       contour(fit(u,0.5*x)) as 'right-side weight'         contour(dx(u))       surface(dx(u))       contour(fit(dx(u)))     contour(fit(dx(u),0.5))       surface(fit(dx(u),0.5))     end