This assignment uses data from the UC Irvine Machine Learning Repository, a popular repository for machine learning datasets. In particular, we will be using the "Individual household electric power consumption Data Set" from:
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Dataset: Electric power consumption [20Mb]
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For description of the data, see Coursera Course Projects week 1 of Exploratory Data Analysis
The script ‘week1.R’ downloads the data and subsets it for only the relevant date range, then saves it locally.
The four ‘plotXXX.R’ scripts create the four PNG files from the subset of the data.