Existing data has 6660 rows. ✖ Assigned data has 6655 rows in mlogit

Machine Learning and Modeling
1

I am doing a Discrete Choice Analysis using mlogit.

As I run the mlogit.data, I am getting an error. There are no empty rows or columns. Please help me!

Convert to mlogit format

df_mlogit <- mlogit.data(df_expanded,

  •                      choice = "chosen", 

  •                      shape = "long", 

  •                      alt.var = "Alternative", 

  •                      id.var = "ID_Choice_Set",

  •                      drop.index = FALSE)

Error in $<-:
! Assigned data rep(1:nchid, each = nalts) must be compatible with existing data.
:heavy_multiplication_x: Existing data has 6660 rows.
:heavy_multiplication_x: Assigned data has 6655 rows.
:information_source: Only vectors of size 1 are recycled.
Caused by error in vectbl_recycle_rhs_rows():
! Can't recycle input of size 6655 to size 6660.
Run rlang::last_trace() to see where the error occurred.