# Specifying column number in Principal Component Analysis in R

I am carrying out PCA in R. Instead of carrying out PCA from Columns 7-30, I want to select Column number 4 and 15-30. How can I adjust the columns in the code clim_data <- read.csv("MergedCSV_43X47Y_CanESM.csv") str(clim_data) colSums(is.na(clim_data)) numerical_data <- clim_data[,7:30] head(numerical_data) data_normalized <- scale(numerical_data) head(data_normalized) corr_matrix <- cor(data_normalized) ggcorrplot(corr_matrix) >Solution : to select specific… Read More Specifying column number in Principal Component Analysis in R