[R] datatable using dt not able to print background colors

Hey, all! I've got a report that uses datatable from DT to create an rmarkdown html that looks great as an html but when I try to print it, to a printer, or to a pdf the colors I've assigned to cells are not displaying. I'm using chrome and I've clicked on the Background graphics button there,

[R] calculating avg silhouette with fpc package

All, Excuse me for being a newbie. I'm trying to calculate the average silhouette, a measure of cluster validity. I've already brought my spss data in. It's 1008 cases with 8 variables, no missing data. So far I've run this: fit - agnes(mydata, diss= FALSE, metric = euclidean, stand=FALSE,