Ana Bucchi

6 Questions 7 Answers 0 Followers

Questions related from Ana Bucchi

Can I do a Discriminant Function Analysis using percentages?

Hi, I wonder if there is any problem in using percetages to make a discriminant analysis (DA). I have percentages representing the surface area ocuppy by a specific feature of a bone relative...

04 April 2019 1,184 11 View

Which function to choose to transform data? how to back-transfom log (x+1)?

Hi, I'm measuring a specific area of phalanges in different primate species. As species and individuals vary in size (and I'm not interested in these size differences), I divide this area of...

03 March 2019 8,684 4 View

How to interpret adjusted variables in linear regression?

Hi, I'm doing a linear regression of one osseous variable on some continous variables or dummies. Some of my independent variables are of my interest (muscular variables) and some are confounding...

05 May 2018 3,195 9 View

How to test natural selection

Hi, I have a morphological trait measured in three different populations and I want to know how this character evolved. All the three populations are recent and I do not have information of this...

07 July 2017 463 20 View

Can I use a not-very-variable covariate in ANCOVA?

Hi, I have a measurement of the length of phalanges of gorillas, chimpanzees, and humans, and I want to know whether there are significant differences in this variable among these species, after...

01 January 1970 8,670 3 View

Sample size in geometric morphometrics. Should I consider the number of groups and bones per individual?

Hi, I want to use geometeric morphometrics on 3D models of hand bones in two groups (males and females). Each individual is represented by more than one bone (seven bones per individual). In...

01 January 1970 1,443 9 View