Nothing
if (requireNamespace("loon.data", quietly = TRUE)) {
local({
data(frey, package = "loon.data")
## isomap data dimensionality reduction
## this takes a bit of time, hence we provide the pre-calculated dimensions
## library(vegan)
freyT <- t(frey)
dims <- 6
##dise <- vegdist(freyT, method="euclidean")
##ord <- isomap(dise,k = 12, ndim= dims, fragmentedOK = TRUE)
data(ordfrey, package = "loon.data")
iso.frey <- as.data.frame(ordfrey$points)
## Images
## sample every third image
sel <- seq(1,dim(frey)[2],3)
frey.imgs <- l_image_import_array(frey[,sel], 28,20,
img_in_row = FALSE, rotate = 90)
l_imageviewer(frey.imgs)
nav <- l_navgraph(iso.frey[sel,])
gl <- l_glyph_add_image(nav$plot, images=frey.imgs, label="frey faces")
nav$plot['glyph'] <- gl
})
cat(paste("\n\nThe source code of this demo file is located at:\n",
system.file("demo", "l_ng_images_frey_isomap.R", package="loon"),"\n\n\n"))
}
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.