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[Bug]: JAVA out of memory #40

@nhill917

Description

@nhill917

Describe the bug

When running SDMs with large numbers of presence points, I am getting a JAVA out of memory error from MaxEnt. Is there a way to overcome this? Also, when using the optimizeModel() function, what are reasonable starting values across the different methods (maxent, random forest, boosted regression tree)? I am running a number of SDMs across the various methods and would like to make sure the optimisation step is appropriate. For example, in your vignette you use the below values for MaxEnt, what would you use for random forest and boosted regression tree?
h <- list(reg = seq(0.2, 5, 0.2), fc = c("l", "lq", "lh", "lp", "lqp", "lqph"))

Thank you for your help.
Kind regards,
nick.

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library(SDMtune)
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