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...ecause I sometimes encounter infinite recursion in testing my code. I think that the problem might come from differences between the Common LISP and R evaluation models. -------------------------------------------------------------------- Gabriel Baud-Bovy Faculty of Psychology UHSR University via Olgettina, 58 tel: (+39) 02 2643 4839 20132 Milan, Italy fax: (+39) 02 2643 4892

...to define some sort of method for it) tkdelete(t1$.canvas,t1$.turtle) rm(t1) # destroy second turtle and world tkdelete(t2$.canvas,t2$.turtle) tkdestroy(t2$.top) rm(t2) } -------------------------------------------------------------------- Gabriel Baud-Bovy Assistant Professor UHSR University via Olgettina, 58 tel: (+39) 02 2643 4839 20132 Milan, Italy fax: (+39) 02 2643 4892

...m) tail.stream<-function(stream) cdr(stream) > fibonacci.stream(0,1) Error in cons(expression, stream) : evaluation is nested too deeply: infinite recursion? } -------------------------------------------------------------------- Gabriel Baud-Bovy Faculty of Psychology UHSR University via Olgettina, 58 tel: (+39) 02 2643 4839 20132 Milan, Italy fax: (+39) 02 2643 4892

...PS: I did ask a similar question 1 month ago but did not get any answer. Probably that my question was too long... I just would like to know if I am missing possibilites. -------------------------------------------------------------------- Gabriel Baud-Bovy Assistant Professor UHSR University via Olgettina, 58 tel: (+39) 02 2643 4839 20132 Milan, Italy fax: (+39) 02 2643 4892

...if(x!=turtle$x || y!=turtle$y) { tkmove(turtle$canvas,turtle$turtle,x-turtle$x,y-turtle$y) turtle$x <- x turtle$y <- y } turtle } -------------------------------------------------------------------- Gabriel Baud-Bovy Assistant Professor UHSR University via Olgettina, 58 tel: (+39) 02 2643 4839 20132 Milan, Italy fax: (+39) 02 2643 4892

...Is there anyone that can send me a sample file in tab format (that I can modify in Excel by pasting my data) and the pertinent R algorithm? Many thanks Giuseppe -- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dr. Giuseppe Biondi Zoccai Interventional Cardiology Unit St Raffaele Hospital via Olgettina 60 20132 Milan ITALY Phone: +39-3408626829 Fax: +39-0226437339 Email: gbiondizoccai at gmail.com ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

...technique of delayed evaluation, we can use the elegant stream formulation while preserving the efficiency of incremental computation. [abridged from p. 260-261] Gabriel -------------------------------------------------------------------- Gabriel Baud-Bovy Faculty of Psychology UHSR University via Olgettina, 58 tel: (+39) 02 2643 4839 20132 Milan, Italy fax: (+39) 02 2643 4892

...eparse.level,"[attributes]",level+1) } invisible(NULL) } -------------------------------------------------------------------- Gabriel Baud-Bovy tel: (+39) 02 2643 4839 Faculty of Psychology, UHSR University fax: (+39) 02 2643 4892 via Olgettina, 58, 20132 Milan, Italy

Hi All, I'm working on a class example that demonstrates one way to deal with factors and their labels. I create a function called myLabeler and apply it with lapply. It works on the whole data frame when I subscript it as in lapply( myQFvars[ ,myQFnames ], myLabeler ) but does not work if I leave the [] subscripts off. I would appreciate it if anyone could tell me why. The program below

...e f(x) = (1+exp(x)/(1+exp(x)))/2 in R? Third, can it be also done with gee and/or glmm? --------------------------------------------------------------------- Gabriel Baud-Bovy tel.: (+39) 02 2643 4839 (office) UHSR University (+39) 02 2643 3429 (laboratory) via Olgettina, 58 (+39) 02 2643 4891 (secretary) 20132 Milan, Italy fax: (+39) 02 2643 4892

...nswer >in public (R-devel) if you feel it helps others. > >Regards, >Martin -------------------------------------------------------------------- Gabriel Baud-Bovy tel: (+39) 02 2643 4839 Faculty of Psychology, UHSR University fax: (+39) 02 2643 4892 via Olgettina, 58, 20132 Milan, Italy