Dear R-helpers, I can not invoke maxent() in Mac OSX. Could you give me any directions on that? Thank you in advance.
Here is my info: # (1) the error > me <- maxent(predictors, occtrain, factors='biome') me <- maxent(predictors, occtrain, factors='biome') Error in .jcall(mxe, "S", "fit", c("autorun", "-e", afn, "-o", dirout, : java.lang.NoClassDefFoundError: Could not initialize class density.DirectorySelect # (2) the variables for maxent: predictors, and occtrain > summary(predictors) summary(predictors) Cells: 35712 NAs : 0 0 0 0 0 0 0 0 0 1 2 3 4 5 6 7 8 9 Min. -23.0 0.0 0.0 0.0 97.0 -207 64.0 -66.0 1.000 1st Qu. 171.0 715.5 317.0 30.0 306.0 29 132.0 213.0 1.000 Median 230.0 1271.0 513.0 87.0 322.0 131 183.0 249.0 4.000 Mean 209.3 1364.0 570.3 136.3 314.4 103 210.4 225.9 5.135 3rd Qu. 257.0 1879.0 834.0 216.0 336.0 188 275.0 262.0 8.000 Max. 289.0 7091.0 2458.0 1496.0 422.0 242 449.0 322.0 14.000 summary based on a sample of 5000 cells, which is 14.0008960573477 % of all cells > summary(occtrain) summary(occtrain) lon lat Min. :-85.93 Min. :-23.450 1st Qu.:-79.47 1st Qu.: -2.750 Median :-75.58 Median : 5.300 Mean :-72.22 Mean : 2.823 3rd Qu.:-65.40 3rd Qu.: 9.150 Max. :-46.73 Max. : 13.950 # (3) my OS and R version > version version _ platform x86_64-apple-darwin9.8.0 arch x86_64 os darwin9.8.0 system x86_64, darwin9.8.0 status major 2 minor 12.1 year 2010 month 12 day 16 svn rev 53855 language R version.string R version 2.12.1 (2010-12-16) > sessionInfo() sessionInfo() R version 2.12.1 (2010-12-16) Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) locale: [1] en_US/en_US/en_US/C/en_US/en_US attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] evaluate_0.3 dismo_0.5-14 rJava_0.8-8 raster_1.7-29 sp_0.9-76 loaded via a namespace (and not attached): [1] grid_2.12.1 lattice_0.19-17 plyr_1.4 stringr_0.4 [5] tools_2.12.1 -- Jian-Feng, Mao the Institute of Botany, Chinese Academy of Botany, ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.