Is it possible to add Weibull CDF & PDF as additional adstock shape functions?

[thipokKub]

In Robyn there are 3 adstock shape function supported which are geometric, Weibull CDF, and Weibull PDF. For Lightweight MMM it support geometric, and carryover effect. Looking at the doc, the carryover equation, it can produce S-like curve shape

which is analogous to Weibull CDF shape in Robyn. But Weibull PDF shape is missing

So is is possible to add Weibull CDF, and PDF as additional adstock shape functions?

[statm3n]

Thank you for the feedback! We will keep monitoring the needs for Weibull for now. In the meanwhile, feel free to provide your use case where you see Weibull is a good fit.