|
|
CLsqFit:GetWt
The GetWt method returns a table containing the weights for all points in the data sample. If multichannel data are fit, the function returns 1 table for each data channel. The returned table contains CLsqFit:GetNumPts() values. To get the weight of a single point, use GetPtWt.
|
tWt = CLsqFit:GetWt( nChannel* ) tWt1, tWt2, tWt3, tWt4 = CLsqFit:GetWt() |
Two forms are provided with a different number of return values. If the point uses single-channel data (i.e., typical numeric data) or you specify the channel, then a single table is returned. If the point involves multi-channel data, up to 4 tables will be returned. The number of tables returned equals the number of channels of data that were fit.
The following example fitsreturns the number of fit points that had a weight >= 5.0:
|
L = CLsqFit:new() |
-- create a CLsqFit object |
|
L:SetNumCoefs( 2 ) |
-- set 2 coefficients to fit a line to single channel data |
|
|
-- add a point for x = 3.5, obs = 5.15, weight = 10 |
|
-- add more points |
|
|
L:Fit() |
-- Fit the line |
|
nHigh = 0 |
-- initialize a counter |
|
|
-- loop over all points k having weight w |
|
|
-- w is the k-th weight |
|
end |
|
|
Printf("N weights > 5 = %d\n", nHigh ) |
--list the results |