search for: numerosities

...ut please note that I only have 9 data points, tho; 1:9). Any help is appreciated. Thanks. FWIW, here's the description from one paper using this method: "For both conditions, the subitizing range for each group was established using quadratic trend tests on the aggregated RT data for numerosities 1-3, 1-4, and so on (Akin and Chase, 1978; Chi and Klahr, 1975; Pylyshyn, 1993). For both groups the first appearance of a quadratic trend was in the N=1-5 range (t(9) = 7.33, p< .001 for the control group, and t(5) = 5.35, p = .005 for the Turner group). This indicates a subitizing range of 4 f...

Dear R-users, I need to produce a histogram where for every breaks there are the mean of the data. I tried tu use the function >hist(x, break=20 ... ) but this return the numerosity for every breaks, not the mean. Any hint? Thanks in advance, francesco --------------------------------------- Francesco Nutini CNR-IREA Ist. per il Rilevamento Elettromagnetico dell'Ambiente Via

Hello Cecilia, nice hearing from you again. I must restate a couple of my old hints, though ;^) 1) please always put the authors c/c, as we are not guaranteed to browse through the r-help every day 2) please provide reproducible examples. As example(pooltest) keeps working fine, as do some other cases I tried (Grunfeld data etc.), I don't know what the problem is but evidently your data are