Variable names in concrete data:

Cement

BlastFurnaceSlag

FlyAsh

Water

Superplasticizer

CoarseAggregate

FineAggregate

Age

CompressiveStrength

 

Concrete data Summary

summary(concrete)

 

Mixtures data Summary

summary(mixtures)

Mixtures data Feature Plot

requires library(caret)

We could list out all the variable names as shown below:

featurePlot(x=mixtures[,c(“Cement”, “BlastFurnaceSlag”, “FlyAsh”, “Water”, “Superplasticizer”, “CoarseAggregate”, “FineAggregate”, “Age”)],y=mixtures$CompressiveStrength, plot=”pairs”)

or simplify a bit:

names <- colnames(mixtures)

names <- names[-length(names)]

then plot:

featurePlot(x = mixtures[, names], y = mixtures$CompressiveStrength, plot=“pairs”)