Thanks Robert. I got this error
x <- predict(Bio01, pca, index=1:3) Error in predict.princomp(model, blockvals, ...) : 'newdata' does not have named columns matching one or more of the original columns What is missing in the code? Thanks On 21 November 2013 18:41, Robert Hijmans [via R-sig-geo] < ml-node+s2731867n7585159...@n2.nabble.com> wrote: > Andre, > > The below is slightly modified from the example in > ?raster::predict > > library(raster) > logo <- brick(system.file("external/rlogo.grd", package="raster")) > sr <- sampleRegular(logo, min(100000, ncell(logo))) > pca <- prcomp(sr) > x <- predict(logo, pca, index=1:3) > plot(x) > > > Robert > > On Thu, Nov 21, 2013 at 7:25 AM, Andre <[hidden > email]<http://user/SendEmail.jtp?type=node&node=7585159&i=0>> > wrote: > > > Hi, > > > > I performed pca in 4 bioclimatic variables using princomp. > > > > ##stack rasters > > myExpl <- raster::stack (Bio01,Bio02,Bio03,Bio04) > > ##read as data.frame > > m <- as.data.frame(myExpl) > > ##pca (here I used formula to activate na.action) > > pca <- princomp(formula = ~., data = m, cor = TRUE, > na.action=na.exclude) > > > > Now I would like to create rasters (with the same size as BIO01) for > each > > component of the PCA to use them as input in biomod2. > > > > What is the best way to do this? > > > > Many thanks, > > > > Andre > > > > > > > > -- > > View this message in context: > http://r-sig-geo.2731867.n2.nabble.com/create-rasters-using-pca-components-of-bioclimatic-variables-tp7585158.html > > Sent from the R-sig-geo mailing list archive at Nabble.com. > > > > _______________________________________________ > > R-sig-Geo mailing list > > [hidden email] <http://user/SendEmail.jtp?type=node&node=7585159&i=1> > > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > > _______________________________________________ > R-sig-Geo mailing list > [hidden email] <http://user/SendEmail.jtp?type=node&node=7585159&i=2> > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > > http://r-sig-geo.2731867.n2.nabble.com/create-rasters-using-pca-components-of-bioclimatic-variables-tp7585158p7585159.html > To unsubscribe from create rasters using pca components of bioclimatic > variables, click > here<http://r-sig-geo.2731867.n2.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=7585158&code=cGludG9kYXNpbHZhLmFAZ21haWwuY29tfDc1ODUxNTh8Nzg5MzY3ODc2> > . > NAML<http://r-sig-geo.2731867.n2.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> > -- *André P. Silva* PhD Candidate Department of Animal Ecology Evolutionary Biology Centre Uppsala University Norbyvägen 18D 752 36 Uppsala Sweden -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/create-rasters-using-pca-components-of-bioclimatic-variables-tp7585158p7585160.html Sent from the R-sig-geo mailing list archive at Nabble.com. _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo