Appreciated colleagues. I have some doubts about the correct calculation of error in my data. I had understood that the error corresponde to the proportion that represent the SS of each effect (image / digitalization) in the SStotal; but I found in the classical paper of Bayley & Byrnes 1990. Syst. Zool. 39(2):126 that the way to calculate the percent of the measurement error is:
% ME = 100% s2 within / (s2 within - s2 among) s2 within = MS within but s2 among = (MS among -MS within)/# replicates I have the followed results for 71 ind in 2D, and 44 coord (66 - 4 - 18 semi landmarks) Procrustes ANOVA para la forma: con g.l. corregidos Efecto SS SS (%) MS df F p (param.) Individuo 0,26857296 92,84 8,59709E-05 3124 25,97 <.0001 Imagen 0,01048868 3,63 3,31082E-06 3168 2,05 <.0001 Digitalización 0,01021206 3,53 1,61175E-06 6336 Total 0,28927370 100,00 My questions are: 1) Is correct to say that 3,63 and 3,53 are the errors of image and digitalization? 2) Is the total error equal to 3,63 + 3,53 or I should calculate it with the equations of Bayley & Byrnes 1990? In advance, thanks a lot for the help. Liu -- *Liu Idárraga* Estudiante doctoral Facultad de Ciencias Naturales y Museo Universidad de La Plata - Argentina -- MORPHMET may be accessed via its webpage at http://www.morphometrics.org --- You received this message because you are subscribed to the Google Groups "MORPHMET" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected].
