Re: ***SPAM*** [MORPHMET] Re: Digitizing landmarks on live larvae

2018-03-14 Thread Avi Koplovich
;c.fru...@unict.it > > Date: 3/12/18 9:51 PM (GMT-10:00) > To: MORPHMET <morp...@morphometrics.org > > Subject: Re: ***SPAM*** [MORPHMET] Re: Digitizing landmarks on live larvae > > Dear Avi, > > I guess it's hard to formulate any rule of thumb. > > Some analyse

Re: ***SPAM*** [MORPHMET] Re: Digitizing landmarks on live larvae

2018-03-13 Thread f.james.rohlf
sage From: Carmelo Fruciano <c.fruci...@unict.it> Date: 3/12/18 9:51 PM (GMT-10:00) To: MORPHMET <morphmet@morphometrics.org> Subject: Re: ***SPAM*** [MORPHMET] Re: Digitizing landmarks on live larvae Dear Avi, I guess it's hard to formulate any rule of thumb.

Re: ***SPAM*** [MORPHMET] Re: Digitizing landmarks on live larvae

2018-03-13 Thread Carmelo Fruciano
Dear Avi, I guess it's hard to formulate any rule of thumb. Some analyses might not be defined if the number of variables exceed the number of observations. Some other analyses might be defined (there is many distance-based analyses nowadays which circumvent that problem). However, whether

Re: ***SPAM*** [MORPHMET] Re: Digitizing landmarks on live larvae

2018-03-12 Thread Avi Koplovich
Hi Carmelo, Thank you for those answers. One more question please: I know that the number of specimens should exceed the number of the total landmarks (fixed-landmarks + semi-landmarks). Is there a rule of thumb of by how much or what ratio between specimens to semi-landmarks one should keep?

Re: ***SPAM*** [MORPHMET] Re: Digitizing landmarks on live larvae

2018-03-11 Thread Carmelo Fruciano
Il 6/03/2018 4:44 PM, Avi Koplovich ha scritto: Hi Carmelo, Thank you for your answer. My project tests for the influence of kairomones of a predator fish on the morphology of Salamander larvae during its development. To do this, I take pictures every other week of larvae spawned from six