n_buffer has wrong dimensions about lsqfit.jl HOT 2 CLOSED

Without a minimal working example it is hard to tell, but my guess is that your model function returns a 3x1 matrix instead of a vector. Can you check if that is the case? An easy fix would in that case be to change

function mymodel(t,p)
     ...
     return x
end

to

function mymodel(t,p)
     ...
     return vec(x)
end

from lsqfit.jl.

Without a minimal working example it is hard to tell, but my guess is that your model function returns a 3x1 matrix instead of a vector. Can you check if that is the case? An easy fix would in that case be to change

I agree, it appears that you return a matrix, not a vector.

julia> size(rand(19))
(19,)

julia> size(rand(19,1))
(19, 1)

from lsqfit.jl.