If the file is tab delimited then you need to use read.table(sep = "\t") instead of read.table(sep = ""). read.delim() is another option.
ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance Kliniekstraat 25 1070 Anderlecht Belgium + 32 2 525 02 51 + 32 54 43 61 85 thierry.onkel...@inbo.be www.inbo.be To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey Van: R-sig-ecology [mailto:r-sig-ecology-boun...@r-project.org] Namens Manuel Esteban Lucas Borja Verzonden: dinsdag 23 december 2014 9:13 Aan: r-sig-ecology@r-project.org Onderwerp: [R-sig-eco] SPEI index Dear All, I am starting to use R software in order to calculate an aridity index (SPEI). I have installed the spei package and the library. Then, I have created a .xls file with year, month, Precip and Temp variables. The xls file has been exported to txt format (separated by tabulations). Then to try, the only output I have obtained can be see below. Could anyone of you please help me? If you want, I can send you the txt file. All the best, Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1 NA NA NA NA NA NA NA NA NA NA NA NA 2 NA NA NA NA NA NA NA NA NA NA NA NA Script: library(SPEI) SPEI <- read.table("/Users/PALAN.txt", header=TRUE, sep="") str(SPEI) PET <- thornthwaite(SPEI$Tm,40.00000) spei(SPEI$PREC-PET,1) --- Manuel Esteban Lucas Borja Universidad de Castilla La Mancha Escuela T�cnica Superior de Ingenieros Agr�nomos y de Montes Departamento de Ciencia y Tecnolog�a Agroforestal y Gen�tica Campus Universitario s/n, C.P. 02071, Albacete (Spain) T�lf.; 967599200 ext. 2818 Mail: manuelesteban.lu...@uclm.es Web:http://www.uclm.es/profesorado/manuelestebanlucas/ [[alternative HTML version deleted]] _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology Disclaimer Bezoek onze website / Visit our website<https://drupal.inbo.be/nl/disclaimer-mailberichten-van-het-inbo> _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology