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vif_func<-function(in_frame,thresh=10,trace=T,...){ | |
library(fmsb) | |
if(any(!'data.frame' %in% class(in_frame))) in_frame<-data.frame(in_frame) | |
#get initial vif value for all comparisons of variables | |
vif_init<-NULL | |
var_names <- names(in_frame) | |
for(val in var_names){ |
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# ipak function: install and load multiple R packages. | |
# check to see if packages are installed. Install them if they are not, then load them into the R session. | |
ipak <- function(pkg){ | |
new.pkg <- pkg[!(pkg %in% installed.packages()[, "Package"])] | |
if (length(new.pkg)) | |
install.packages(new.pkg, dependencies = TRUE) | |
sapply(pkg, require, character.only = TRUE) | |
} |