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Questions tagged [maxent]

Software library based on the maximum-entropy approach for species habitat modeling

The software takes as input a set of layers or environmental variables (such as elevation, precipitation, etc.), as well as a set of georeferenced occurrence locations, and produces a model of the range of the given species.

See the project homepage for more.

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biomod2 Warning message: running command 'java' had status 1

I'm trying to run MaxEnt in biomod2 but I keep getting a java error... This error seems to be related to a certain "status 1" that I can't understand. This is my workflow: # Defining MAXENT Mododelling options myBiomodOption <-…
Thai
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extract environmental value from points predicted from maxent

I have used maxent to predict species distribution model of interested species. I would like to extract point (coordinate) with high confidence predicted from maxent (eg >0.8), and use these point to extract their detail environmental factors using…
Bing-Hong Huang
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maxent RJava situation 1001

Ive been struggling with overcomming a series of errors for using the function maxent in the dismo package. Loading required package: rJava Unable to find any JVMs matching version "(null)". No Java runtime present, try --request to install. Error:…
I Del Toro
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How to use Dismo's predict() with a maxent model based on a dataframe

I am trying to figure out how dismo's predict function operates in terms of a model built with 'x' as a dataframe, rather than raster layers. I have successfully run models using raster layers and made prediction maps based on this. My model is…
Coding4Biology
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Calculating area in a binary raster

I ran some species distribution models (SDM), using maxent of the 'dismo' package for several species, so I saved each one as a raster file. After that I transformed this environmental suitability raster (SDM result) into a binary map based on a…
Ramiro Dário Melinski
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R package that implements maxent for NLP tasks

I am searching for an R package that implements MaxEnt for NLP tasks (i.e. for situations with large no. of parameters). The requirement is to perform Named Entity Recognition on medical text. I got used to relying on CRF++ for sequence labelling…
mejobhoot
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kernel density function in R gives unequal x and y resolution

I hope you can help me with a problem that I've had for a while now. I need to make a bias file for MaxEnt, for which I have used this tutorial:…
Nadja
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"Error in file(con, "r") calling maxent function in R

hope someone can help me here. I am a ecologist and as part of my master degree's thesis I am making some species distribution using the maxent (https://www.cs.princeton.edu/~schapire/maxent/) function in R, with the Dismo package. In a certain…
Ramiro Dário Melinski
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R Code: predict() function Error in UseMethod("predict") on a Loop

I had already done some niche modeling with maxent() and doing it step by step i don't have any problem. when i try to do it in a loop for more models just give this Error: Error in UseMethod("predict") : no applicable method for 'predict'…
Josué Yoshi Arteaga
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Decision Tree nltk

I am trying different learning methods (Decision Tree, NaiveBayes, MaxEnt) to compare their relative performance to get to know the best method among them. How to implement the Decision Tree and get its accuracy? import string from sklearn.tree…
user7269547
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Stanford tagger making unexpected results

I'm trying to use Stanford CoreNLP POS tagger on my data. I have used the automatic generated prop file. I have only changed the Open classes. I want to know if there is a complete description about other fields in this property like the "arch" and…
Hedieh
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Analyis of pseudoreplicated data: looking at niche breadth differences using Levins' B

I am interested in testing whether species with trait A have wider niche breadths than species with trait B. I have been using Maxent species distribution modeling. After generating 100 bootstrap replicate Maxent species distribution maps for each…
Alannie-Grace Grant
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Error running MaxEnt from within 'biomod2' in R

I am trying to fit some species distribution models using the biomod2 package in R. I have compiled all of the required data such that biomod2 successfully fits models using all techniques except MaxEnt, which throws an error: Error in file(file,…
Andrew
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Reuse Saved Model (Maxent) to predict new input in R

I am trying to recreate a learning from multiple sources and trying to build a model with maxent in R with my own data. I was able to train and test and validate the result from a data set. I have saved the trained model and am trying to predict…
Mr Rj
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Trouble viewing MaxEnt output map

I recently downloaded MaxEnt Model v3.3.3e software from http://www.cs.princeton.edu/~schapire/maxent/ website. I have troubleshot many issues, and have success running the program with output files to view. However, the output file does not…
Jacob
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