[R] Question abt 'factanal' function

Hi, I tried to run 'factanal' function for Factor Analysis, but failed to get results. The error message was following, Error in factanal(data, factors = 3, rotation = "varimax") : unable to optimize from this starting value I searched for the solution of this error, and one said putting 'con

[R] Question about package "principal"

Hi, I tried to run "principal" function in the 'psych' package, but it failed to do.. here is both my code and error message. I searched on the web, but couldn't find the exact answer I wanted. > data<-read.csv(" https://raw.githubusercontent.com/mylesmharrison/delta_PCA_kmeans/master/delta.csv

[R] Problem in installing package "ggplot2"

Hi.. After I upgraded R from 3.1 to 3.11, I stuck with problem in installing 'ggplot2' package The error message was; Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) : there is no package called ‘Rcpp’ Error: package or namespace load failed for â