Dear R-helpers and Dr. Hijmans, I can not invoke maxent() in GNU Linux. Could you give me any directions on that? There is maxent.jar in version 3.3.3e in the right folder.
######################################## R: > jar <- paste(system.file(package="dismo"), "/java/maxent.jar", sep='') > jar [1] "/ebio/abt6/jmao/rpacks/dismo/java/maxent.jar" Terminal: jmao@upa:~/rpacks/dismo/java$ ls maxent.jar mebridge1.jar mebridge2.jar ######################################## Thank you in advance. Here is my info: ########################################################### # (1) the error > me <- maxent(predictors, occtrain, factors='biome') Error in .jcall(mxe, "S", "meversion") : java.lang.NoClassDefFoundError: density/Utils Error in .getMeVersion() : "dismo" needs a more recent version of Maxent (3.3.3b or later) Please download it here: http://www.cs.princeton.edu/~schapire/maxent/ # (2) the variables for maxent: 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 0.0 100.0 -203.00 60.0 -49.0 1.000 1st Qu. 170.0 717.8 321.0 29.0 305.0 28.75 132.0 213.0 1.000 Median 228.0 1276.0 516.0 86.0 322.0 130.50 182.0 248.0 4.000 Mean 208.4 1379.0 574.3 137.3 313.7 102.20 209.6 226.1 5.116 3rd Qu. 257.0 1908.0 842.0 214.0 335.0 187.00 275.0 262.0 8.000 Max. 289.0 7682.0 2426.0 1496.0 416.0 242.00 461.0 323.0 14.000 summary based on a sample of 5000 cells, which is 14.0008960573477 % of all cells > summary(occ) lon lat Min. :-85.93 Min. :-23.450 1st Qu.:-79.20 1st Qu.: -2.896 Median :-75.08 Median : 4.817 Mean :-71.79 Mean : 2.449 3rd Qu.:-65.51 3rd Qu.: 9.150 Max. :-40.07 Max. : 13.950 # (3) my linux and R version > version _ platform x86_64-unknown-linux-gnu arch x86_64 os linux-gnu system x86_64, linux-gnu status major 2 minor 12.0 year 2010 month 10 day 15 svn rev 53317 language R version.string R version 2.12.0 (2010-10-15) > sessionInfo() R version 2.12.0 (2010-10-15) Platform: x86_64-unknown-linux-gnu (64-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=C LC_MESSAGES=en_US.UTF-8 [7] LC_PAPER=en_US.UTF-8 LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] 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_2.12.0 lattice_0.19-17 tools_2.12.0 -- 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.
