You have still left out important information. You created Homo as a data.frame but the next command arrayspecs() assumes Homo is a matrix. There appears to be an initial column of characters that indicates the landmark? What does str(Homo) produce after read.table()? We need the steps you used to create and modify Homo before the error message including the command that generated the error message and the exact text of that message. It appears that arrayspecs converts Homo to a three dimensional array. You should run str(Homo) after this step as well (and include the results in any further posts).
------------------------------------- David L Carlson Associate Professor of Anthropology Texas A&M University College Station, TX 77840-4352 -----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Alannah Sent: Wednesday, May 8, 2013 4:25 AM To: r-help@r-project.org Subject: Re: [R] is.numeric () FALSE Jeff, The dataset are 3D landmarks taken from a skull (Homo being the dataset of 3 species of the genus Homo) I am trying to perform Generalised Procrustes Distance and superimposition and as you can see, I am told x is not True. If I also perform is.numeric(Homo) I am told that it is FALSE. I hope that is enough context for you. I also hope you know what's going wrong in my dataset. > Homo=read.table("D:/Homo.txt", sep="") Homo X1x X1y X1z X2X X2Y X2Z X3X X3Y SK 125.2288 -207.2243 95.13449 94.08087 -184.7764 98.85405 159.1837 -189.3104 GIB 121.4254 -228.1540 33.61633 84.07050 -209.2446 52.82806 159.5556 -205.1629 KBW 128.5904 -232.1195 47.11266 92.96498 -215.2787 48.39832 164.3043 -213.7220 X3Z X4X X4Y X4Z X5X X5Y X5Z X6x SK 94.84497 129.3257 -192.9469 120.64075 102.09383 -167.0360 140.4830 161.4940 GIB 48.10354 123.3033 -235.6632 68.96723 82.34183 -220.0837 104.7756 164.1860 KBW 51.10052 126.2948 -223.1627 81.66055 75.98707 -201.2843 108.0087 177.3304 X6y X6z X7x X7y X7z X8x X8y X8z SK -169.4289 136.2563 56.07269 -156.3827 89.49998 195.9156 -165.8967 79.33151 GIB -221.0951 101.2779 57.06448 -194.0515 61.04704 188.6181 -184.5234 57.21327 KBW -199.6966 110.2110 55.50871 -172.5727 55.57302 201.8666 -173.5339 57.47801 X9x X9y X9z X10x X10y X10z SK 71.01711 -158.7208 126.92698 192.5974 -158.2639 116.59634 GIB 57.25282 -198.6531 93.25098 186.9386 -195.8407 88.64017 KBW 55.54756 -180.8983 92.43064 197.7266 -180.1343 96.22781 > Homo=arrayspecs(Homo, 10, 3, byLand=F) Homo , , SK [,1] [,2] [,3] [1,] 125.2288 -207.2243 95.13449 [2,] 94.08087 -184.7764 98.85405 [3,] 159.1837 -189.3104 94.84497 [4,] 129.3257 -192.9469 120.6407 [5,] 102.0938 -167.036 140.483 [6,] 161.494 -169.4289 136.2563 [7,] 56.07269 -156.3827 89.49998 [8,] 195.9156 -165.8967 79.33151 [9,] 71.01711 -158.7208 126.927 [10,] 192.5974 -158.2639 116.5963 , , GIB [,1] [,2] [,3] [1,] 121.4254 -228.154 33.61633 [2,] 84.0705 -209.2446 52.82806 [3,] 159.5556 -205.1629 48.10354 [4,] 123.3033 -235.6632 68.96723 [5,] 82.34183 -220.0837 104.7756 [6,] 164.186 -221.0951 101.2779 [7,] 57.06448 -194.0515 61.04704 [8,] 188.6181 -184.5234 57.21327 [9,] 57.25282 -198.6531 93.25098 [10,] 186.9386 -195.8407 88.64017 , , KBW [,1] [,2] [,3] [1,] 128.5904 -232.1195 47.11266 [2,] 92.96498 -215.2787 48.39832 [3,] 164.3043 -213.722 51.10052 [4,] 126.2948 -223.1627 81.66055 [5,] 75.98707 -201.2843 108.0087 [6,] 177.3304 -199.6966 110.211 [7,] 55.50871 -172.5727 55.57302 [8,] 201.8666 -173.5339 57.47801 [9,] 55.54756 -180.8983 92.43064 [10,] 197.7266 -180.1343 96.22781 > Homo=gpagen(Homo, Proj=T, ProcD=T,ShowPlot=T,curves=NULL, > surfaces=NULL, > pointscale=1) Error: is.atomic(x) is not TRUE > -- View this message in context: http://r.789695.n4.nabble.com/is-numeric-FALSE-tp4666530p4666564.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. ______________________________________________ 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.