Error executing "predict(m, future)" -> Error in x - fits : non-numeric argument to binary operator

[Ocanamat]

Hi guys,

I don't know if this is related to issue #31, or #34, but as I try to generate predictions with the prophet model / object, I get the following error

>single_TS_fcast <- predict(m, future)  

Error in x - fits : non-numeric argument to binary operator
In addition: Warning message:
In mean.default(x, na.rm = TRUE) :
  argument is not numeric or logical: returning NA

Training the model gives me the following output

> m <- prophet(single_TS_prophet)  

STAN OPTIMIZATION COMMAND (LBFGS)
init = user
save_iterations = 1
init_alpha = 0.001
tol_obj = 1e-012
tol_grad = 1e-008
tol_param = 1e-008
tol_rel_obj = 10000
tol_rel_grad = 1e+007
history_size = 5
seed = 981261820
initial log joint probability = -15.0584
Optimization terminated normally: 
  Convergence detected: absolute parameter change was below tolerance

Any ideas? Kind regards

[Ocanamat]

Solved,

Must be something regarding the handling of the predict() function from 'forecast'.

Alternatively ran

forecast <- prophet:::predict.prophet(m, future)

and it works.

Regards,