CalculateVariance: Calculate Variance Function
In mariytu/RegressionLibs: What the package does (short line)

Description Usage Arguments Value See Also Examples

Function to calculate de variance of an specific column.

1	CalculateVariance(dataSet, col)

`dataSet`	an object of class data frame with a data set that you want calculate the variance.
`col`	an integer that represent the column that you want calculate the variance.

an object of class data frame with a modified data set with variance calculated.

elbowPlot

#This function is used by elbowPlot
#Example 1
iris.x <- iris[,1:4] # These are the independent variables
# We know that there are no missing values in the data set

# performing prcomp
ir.pca <- prcomp(iris.x, center = TRUE, scale. = TRUE)

# Generating elbow plot to detect the most important principal components
elbowPlot(ir.pca)