Re: [Qgis-user] Principal Component Analysis ?

2017-06-24 Thread Nikos Alexandris
* image [2017-06-23 08:03:42 -0700]: Good afternoon, Hi Laurent, i'm working on windows with several opensource tools (qgis, otb, grass...), I generated several OTB texture indices. Now, i want to evaluate the information 's redundancy thanks to a Principal

Re: [Qgis-user] Principal Component Analysis ?

2017-06-23 Thread Falk Huettmann
Hi, thanks but nope: CANOCO comes from the 1970s and is widely outdated by now, and not achieving (much). Just a few botanists (=not trained statisticians or coders) still use it, if at all. It usually asks the wrong questions and uses pretty old methods that are widely improved by now, e.g.

Re: [Qgis-user] Principal Component Analysis ?

2017-06-23 Thread Nicolas Cadieux
Hi, You can use R for PCA. Use the R Commander package to add a GUI. R can be scary at first. Nicolas > Le 23 juin 2017 à 11:03, image [via OSGeo.org] > a écrit : > > Good afternoon, > > i'm working on windows with several opensource tools (qgis, otb,

[Qgis-user] Principal Component Analysis ?

2017-06-23 Thread image
Good afternoon, i'm working on windows with several opensource tools (qgis, otb, grass...), I generated several OTB texture indices. Now, i want to evaluate the information 's redundancy thanks to a Principal Component Analysis. => Is it possible to do that with some opensource tools (otb?