Nortonbass_startvalgen function

Fits Norton Bass curve and estimated RMSE

Nortonbass_startvalgen(x, gstart, flexpq, startval.met)

Arguments

• x: matrix with generations
• gstart: optional vector of starting points for the generations
• flexpq: For startvalgen="BB". Allows parameters p and q to be flexible if set TRUE.
• startval.met: "iBM" fits individual Bass model to each generation; "BB" uses the approach described in Bass and Bass (2004).

Returns

starting values for all parameters

Author(s)

Oliver Schaer, info@oliverschaer.ch