plates {qcr}

Vickers hardness data

Description

A known chemical company is developing a patent for a new variant of artificial stone composed mostly of quartz ( 93wt and polyester resin . This company is launching a pilot plant where it begins to produce plates of this material to industry scale. In order to measure the degree of product homogeneity, 50 samples were taken, performed 5 measurements per plate corresponding to different areas of artificial stone Vickers hardness

Format

A data frame with 250 observations on the following 2 variables:

hardness

Vickers hardness corresponding to different areas of artificial stone

sample

sample id

Examples

data(plates)
attach(plates)
summary(plates)
plot(hardness, type="b")
detach(plates)