risk of memory problems because Netlogo exports ALL the turtles

[mdahirel]

Netlogo/nlrx exports turtles' metrics independently of patches'. This means that when we save turtles metrics for a tick, we save ALL the turtles, not only those of interest. This could quickly get us into trouble, memory-wise, so we need to think about:

• whether we can't offload some calculations to Netlogo to convert turtles metrics into patches metrics. For instance, if we're not interested in correlations between individual slope and intercept, or in the expressed trait, we can just store trait information as observed patch-level mean and variance for the genetic and noise components
• how frequently do we need to save things? every 5 ticks? every 10? less?

[mdahirel]

initial problem solved, but file size remains way too big to be practical (about 160 Mo for the csv containing 1 replicate of every treatment in the 1 row = 1 individual format)

So we definitely need to compress to population-level metrics

[mdahirel]

post-processing now solely at the population-level, issue closed