Hi everyone, So I am trying to see which ecological parameter of different parks in nyc influence the most the diversity of the medium-sized mammals in those parks. I have a bunch of different parameters for each park I'm done studying and the presence (1) and absence (0) of each mammal. I wanted to do a principal component analysis of those data to know which ones of those parameters are the most important.
Here is what I have: Parc PBP VCP PP CP surfacekm² 0.917 4.64 0.0213 3.4 woodenarea 0.514 0.6355 0.32 0.4952 scrubland 0.0905 0.0412 0.06 0.0498 lawn 0.3654 0.2837 0.50 0.296 lake 0.0028 0.0166 0.12 0.1488 wetareas 0.0273 0.0230 0 0.0102 intertidalearea 0.0283 0 0 0 sportsfields 0.0887 0.2579 0.12 0.1323 humanactivity 0.4196 0.7271 0.23 0.7912 #ofhighways 2 3 0 0 #ofroads 4 22 7 11 distanceA 5.31 4.02 1.61 4.02 distanceB 6.12 4.51 3.7 4.02 distanceC 7.56 5.47 7.72 6.44 distanceD 9.66 9.66 19.31 9.01 AvgPopN 1133 0 5380 6835 AvgPopS 0 7022 5380 4711 AvgPopE 0 3592 8536 4307 AvgPopW 3940 3220 4840 9360 raccoon 1 1 1 1 skunk 1 1 1 1 opossum 1 1 1 0 rabbit 1 1 1 0 groundhog 0 0 0 0 muskrat 0 0 0 0 I get to open the .txt with R but then it gives me something pretty weird when I try to use the function dudi.pca(parcs)... Can anyone suggest me how I should to my analysis? I would really really be thankful for that! Geo. -- View this message in context: http://r.789695.n4.nabble.com/PCA-analysis-presence-absence-of-mammals-in-parks-tp2319051p2319051.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
