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README_plots.md

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README file for the plots

This file contains the steps to take to reproduce the same plots

  1. Download the required data : Use the download_data.R to defines a function download_data() which downloads the required data for the production of plots. This data is saved in the current working directory.

  2. Source the required R scipts : Source the following files: plot1.R, plot2.R, plot3.R, and plot4.R to your R session. These R scripts were written in

    "R version 4.3.0 (2023-04-21 ucrt)"

    They define the functions named the same as the file name which does the following,

    • Download if required and load the required packages for the code. dplyr package version 1.1.2
    • Read in the electric power consumption data from the file name "household_power_consumption.txt", make sure the downloaded data has the above mentioned file name for this R sciprts to work if download_data.R was not used
    • Subsetting the data set to include only information for 2007-02-01 and 2007-02-02
    • POSIXct conversion of date and time information
    • Opening the PNG device of size 480*480 pixels
    • Plotting the corresponding plot to the png device
    • Closing the PNG device

  3. Obtaining PNG plots : Run the plot1 through plot4 functions and they will plot the corresponding plots as separate PNG files in your current working directory