save fit

[thibault-gajdos]

Hello everyone,

i have a very basic problem: i cannot save my fits.

Configuration:
system: mac Big Sur 11.6
Python 3.5.5
hddm 0.8.0

Instruction:
m.save("mymodel")

Message:
File "/Users/thibault/thib/projects/exercice_ddm/data/Code/hddm_exercice.py", line 57, in
## posterior predictive
File "/Users/thibault/opt/anaconda3/envs/py35/lib/python3.5/site-packages/kabuki/hierarchical.py", line 412, in save
pickle.dump(self, open(fname, 'w'))
TypeError: write() argument must be str, not bytes

Any help on solving this issue or alternative method for saving models and traces would be higly appreciated!

Best
thibault

[AlexanderFengler]

You you share a bit more code?
At best a reproducible example.

Best,
Alex

[thibault-gajdos]

Yes, here it is:

m  =  hddm.HDDM(f_data)
m.sample(20, burn=10,  dbname='traces1', db='pickle')
m.save('fit')

You can replace f_data by any (appropriate) data set.
Best,
thibault