samples1 = sample_parameters(parameters_1, 100, LHSSampler(), rng=42)
samples2 = sample_parameters(parameters_2, 10, FFSampler())

# combine both sets of samples in a full factorial manner.
combined_samples = samples1.combine(samples2, "full_factorial")

# combine both sets of samples by cycling over the shortest set until it is
# equal in length to the longest set.
combined_samples = samples1.combine(samples2, "cycle")

# combine both sets of samples by sampling with replacement from the 
# shortest set until it is equal in length to the longest set.
combined_samples = samples1.combine(samples2, "sample", rng=271828)

# we can also chain this
combined_samples = samples1.combine(samples2).combine(samples3)