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...d2.lmer) method and then relying on the model with the lower AIC (or on the Log- likelihood test?)? I thank in advance for your help! best regards, Achaz von Hardenberg ------------------------------------------------------------------------ -------------------------------- Centro Studi Fauna Alpina - Alpine Wildlife Research Centre Servizio Sanitario e della Ricerca Scientifica Parco Nazionale Gran Paradiso, Degioz, 11, 11010-Valsavarenche (Ao), Italy E-mail: achaz.hardenberg@pngp.it fauna@pngp.it Skype: achazhardenberg Tel.: +39.0165.905783 Fax: +39.0165.905506 Mobile: +...

...1000 rows with two columns for the two statistics I calculated with my first function. I hope I was clear enugh and would be glad to anybody who can help me out! ciao, Achaz von Hardenberg -------------------------------------------------------------------------------------- Centro Studi Fauna Alpina - Alpine Wildlife Research Centre Parco Nazionale Gran Paradiso, via della Rocca 47, 10123 Torino, Italy e-mail: fauna at pngp.it Tel. (office): +39.011.8606212 Tel. (mobile): +39.328.8736291 Fax: +39.011.8121305 -------------------------------------------------------------------------------------...

Dear R-help members I would be grateful if anyone could help me with the following problem: I would like to combine two matrices (SCH_15 and SCH_16, they are attached) which have a species presence/absence x sampling plot structure. The aim would be to have in the end only one matrix which shows all existing species and their presence/absence on all the different plots(an_1, an_2 etc.) To do