Re: [R] 1-Pearson's R Distance

2008-11-28 Thread Rodrigo Aluizio
t.org Assunto: Re: [R] 1-Pearson's R Distance Hi Rodrigo, afaik, (1 - r_Pearson)/2 is used rather than 1 - r_Pearson. This gives a distance measure ranging between 0 and 1 rather than 0 and 2. But after all, dies does not change anything substantial. see e.g. Theodoridis & Koutro

Re: [R] 1-Pearson's R Distance

2008-11-27 Thread William Revelle
At 5:00 PM +0100 11/27/08, Claudia Beleites wrote: Hi Rodrigo, afaik, (1 - r_Pearson)/2 is used rather than 1 - r_Pearson. This gives a distance measure ranging between 0 and 1 rather than 0 and 2. But after all, dies does not change anything substantial. see e.g. Theodoridis & Koutroumbas: Patt

Re: [R] 1-Pearson's R Distance

2008-11-27 Thread Thomas Petzoldt
Rodrigo Aluizio wrote: Hi again List, Well this time I?m writing for a friend (really J). He needs to create a distance matrix based on an abundance matrix using the 1-Pearson?s R index. Well I told him to look at the proxy package, but there is only Pearson Index. He needs it to perform a clust

Re: [R] 1-Pearson's R Distance

2008-11-27 Thread Claudia Beleites
Hi Rodrigo, afaik, (1 - r_Pearson)/2 is used rather than 1 - r_Pearson. This gives a distance measure ranging between 0 and 1 rather than 0 and 2. But after all, dies does not change anything substantial. see e.g. Theodoridis & Koutroumbas: Pattern Recognition. I didn't know of the proxy pack

[R] 1-Pearson's R Distance

2008-11-27 Thread Rodrigo Aluizio
Hi again List, Well this time I’m writing for a friend (really J). He needs to create a distance matrix based on an abundance matrix using the 1-Pearson’s R index. Well I told him to look at the proxy package, but there is only Pearson Index. He needs it to perform a clustering. Well, as soon as h