Let’s say I have a prior made of continuous and discrete variables:

```
using Distributions
a = Uniform()
b = Normal()
c = Binomial()
...
```

I generate random numbers from the prior, input them into an expensive model and the model gives back a list of arrays as a result. I repeat the process with another drawing of the input parameters and get a different set of arrays.

I have a routine that saves these “arrays” into disk, but the problem is that I want to track later on, what parameters from the prior have generated a particular array.

I am looking for a solution or file format that is portable enough, do you have recommendations? JLD, JLD2, HDF5, …