R Dataset / Package robustbase / phosphor


On this R-data statistics page, you will find information about the phosphor data set which pertains to Phosphorus Content Data. The phosphor data set is found in the robustbase R package. You can load the phosphor data set in R by issuing the following command at the console data("phosphor"). This will load the data into a variable called phosphor. If R says the phosphor data set is not found, you can try installing the package by issuing this command install.packages("robustbase") and then attempt to reload the data. 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 phosphor R data set. The size of this file is about 217 bytes.

Phosphorus Content Data


This dataset investigates the effect from inorganic and organic Phosphorus in the soil upon the phosphorus content of the corn grown in this soil, from Prescott (1975).




A data frame with 18 observations on the following 3 variables.


Inorganic soil Phosphorus


Organic soil Phosphorus


Plant Phosphorus content


P. J. Rousseeuw and A. M. Leroy (1987) Robust Regression and Outlier Detection. Wiley, p.156, table 24.


summary(lm.phosphor <- lm(plant ~ ., data = phosphor))
summary(lts.phosphor <- ltsReg(plant ~ ., data = phosphor))phosphor.x <- data.matrix(phosphor[, 1:2])
cPh <- covMcd(phosphor.x)
plot(cPh, "dd")

Dataset imported from https://www.r-project.org.

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Attachment Size
dataset-96919.csv 217 bytes
Dataset License
GNU General Public License v2.0
Documentation License
GNU General Public License v2.0

This documentation is licensed under GPLv3 or later.