Facing issue regarding the Seasonality coming as negative even when it is toggled positive.

[Nitinwangnoo]

Project Robyn

Describe issue

Facing issue regarding the Seasonality coming as negative even when it is toggled positive. We'd want to know what could be the possible reason behind this issue ?

Provide reproducible example

Attaching files and one pager for your reference.

pareto_aggregated.csv

Environment & Robyn version

Make sure you're using the latest Robyn version before you post an issue.

• Check and share Robyn version: 3.11.0

[gufengzhou]

In general, the decomp for season will be always close to 0, either slightly positive or negative. The reason is that season is a cyclic function around 0 (for example 5 in spring, 20 in summer, -5 in autumn, -20 in winter), thus when you sum up the whole year it'll be around 0. The "toggle" for season is actually not meaningful (sorry for that). Trend and holiday are different and is not centered around 0. Hope it makes sense