search for: biogeco

...(a,b,x,y)=b/(2*pi*a?gamma(2/b))*exp(-(square_root(x?+y?)/a)power(b)) I am looking for a and b values that fit my data at best. Can someone give me hints to perform such an analysis with R ? Thanks a lot Sophie Sophie Gerber gerber at pierroton.inra.fr INRA - UMR BIOGECO 69 route d'Arcachon tel (33) (0)5 57 12 28 30 33612 Cestas cedex fax (33) (0)5 57 12 28 81 http://www.pierroton.inra.fr/genetics/Perso/Sophie/ page_sophie_english.html

...nswer is "NULL": > residuals(aov(PH~Community*Mowing*Water + Error(Block/(Mowing*Water)))) NULL > residuals(aov(PH~Community*Mowing*Water + Error(Block))) NULL A huge thanks to the one who will rescue (or at least try to rescue) my PhD! Sincerely, -- Jean-Paul Maalouf UMR 1202 BIOGECO Inra - Universit? Bordeaux 1 B?timent B8, Avenue des Facult?s 33405 Talence, France Tel : 05 40008772