On this Picostat.com statistics page, you will find information about the ironslag data set which pertains to Iron Content Measurements. The ironslag data set is found in the DAAG R package. Try to load the ironslag data set in R by issuing the following command at the console data("ironslag"). This may load the data into a variable called ironslag. If R says the ironslag data set is not found, you can try installing the package by issuing this command install.packages("DAAG") and then attempt to reload the data with library("DAAG") followed by data("ironslag"). Perhaps strangley, if R gives you no output after entering a command, it means the command succeeded. If it succeeded you can see the data by typing ironslag at the command-line which should display the entire dataset.
If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the ironslag R data set. The size of this file is about 340 bytes.
Iron Content Measurements
ironslag data frame has 53 rows and 2 columns.
Two methods for measuring the iron content in samples of slag
were compared, a chemical and a magnetic method. The chemical
method requires greater effort than the magnetic method.
This data frame contains the following columns:
a numeric vector containing the measurements
coming from the chemical method
a numeric vector containing the measurments
coming from the magnetic method
Hand, D.J., Daly, F., McConway, K., Lunn, D., and Ostrowski, E. eds (1993)
A Handbook of Small Data Sets. London: Chapman & Hall.
iron.lm <- lm(chemical ~ magnetic, data = ironslag)
oldpar <- par(mfrow = c(2,2))
Dataset imported from https://www.r-project.org.