Comments (4)
I'll propably just refurbish the whole model to a more usable and robust syntax, I'll be in touch once I get something worthwhile going :D
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Hi,
Without complete code I'm unable to reproduce this. Most crucially your handling of batch_size
remains unclear.
However, based on the error message the problem is that the data
argument given to legacy_updated
is 1D, but you're trying to use it as 2D. Assuming data
is an elfi.Prior
, this is the default behaviour, and data.shape[0]
= batch_size
. You can use the size
keyword, e.g. elfi.Prior('lognorm', 2, 10, size=3)
, to change this.
Also, if you intend to use var
et al. as elfi.Summary
, note that ELFI uses the first dimension for internal batches, so you probably should replace axis=0
with axis=1
everywhere.
That said, all this assumes that you make use of ELFI's internal batching. It is certainly possible to circumvent this (by essentially forcing batch_size
to 1), but I do not recommended such. :)
from elfi.
Thx for the help, I got the simulator node working but ran to a trouble with the distance node.
I'm not really using batch_size atm since I just want to get the basic concept working first.
I think that this is due to summaries being 1d arrays instead of 2d:
In executing node 'd': all the input array dimensions except for the concatenation axis must match exactly.
That being said I think that I can get this working (most of the issues I'm facing are due to STAN and c++ and I feel like I'm going to a tree with my ass up when doing this in python...)
from elfi.
ELFI always uses batches, and batch_size
is always the length of the first dimension (unless you hard-code stuff otherwise, which I do not recommend). This is true even if you use batch_size=1
, in which case the first dimension of all arrays has length 1.
The summaries are typically 1d arrays of length batch_size
(but can be 2d as well).
from elfi.
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