Full_Name: Joerg Rauh Version: 2.5.0 OS: Windows 2000 Submission from: (NULL) (84.168.226.163)
Following Michael J. Crawley "Statistical Computing" on page 9 the worms.txt is required. After downloading it from the book's supporting website, which is http://www.bio.ic.ac.uk/research/mjcraw/statcomp/data/ I visually check the data against the book and they look identical. Then I do a read.table as suggested: worms<-read.table("C:/Programme/R/R-2.5.0/Data/Worms.txt", header = T). Typing "worms" to see the data, it's no longer the same: Four lines have been added to the beginning of the file. One is the header line and three lines are from further down in the file, i.e. lines 10,11 and 12 in reverse order. Please look at a copy at the end of this mail. If the first four lines weren't there, the data would be o.k. I tried different parameter settings in read.table but couldn't obtain any improvement. Please let me know, how I can correct this. Best regards Joerg > worms<-read.table("C:/Programme/R/R-2.5.0/Data/Worms.txt", header = T) > worms Field.Name Area Slope Vegetation Soil.pH Damp Worm.density 1 Oak.Mead 3.1 2 Grassland 3.9 F 2 2 Church.Field 3.5 3 Grassland 4.2 F 3 3 Ashurst 2.1 0 Arable 4.8 F 4 4 Field.Name Area Slope Vegetation Soil.pH Damp Worm.density 5 Nash's.Field 3.6 11 Grassland 4.1 F 4 6 Silwood.Bottom 5.1 2 Arable 5.2 F 7 7 Nursery.Field 2.8 3 Grassland 4.3 F 2 8 Rush.Meadow 2.4 5 Meadow 4.9 T 5 9 Gunness'.Thicket 3.8 0 Scrub 4.2 F 6 10 Oak.Mead 3.1 2 Grassland 3.9 F 2 11 Church.Field 3.5 3 Grassland 4.2 F 3 12 Ashurst 2.1 0 Arable 4.8 F 4 13 The.Orchard 1.9 0 Orchard 5.7 F 9 14 Rookery.Slope 1.5 4 Grassland 5 T 7 15 Garden.Wood 2.9 10 Scrub 5.2 F 8 16 North.Gravel 3.3 1 Grassland 4.1 F 1 17 South.Gravel 3.7 2 Grassland 4 F 2 18 Observatory.Ridge 1.8 6 Grassland 3.8 F 0 19 Pond.Field 4.1 0 Meadow 5 T 6 20 Water.Meadow 3.9 0 Meadow 4.9 T 8 21 Cheapside 2.2 8 Scrub 4.7 T 4 22 Pound.Hill 4.4 2 Arable 4.5 F 5 23 Gravel.Pit 2.9 1 Grassland 3.5 F 1 24 Farm.Wood 0.8 10 Scrub 5.1 T 3 > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
