Using hierarchicalforecast with MiddleOut forecast proportio

Question

Using hierarchicalforecast with MiddleOut forecast proportions reconciliation it happened that for a certain point the second to last level has a forecasted value of 4 and the last lowest level for the same timestep has a forecasted value of over 7000 I expect it to be equal or lower than 4 Could it be related to some division by a value close to zero that is happening somewhere

Manuel · Answer

The problem was caused by some very small negative values close to zero from the chart they looked like zero because they were very small By clipping to zero as the minimum value the problem seems to have been fixed