Exercise

Using the Fisher dataset to do the following exercises:

• read in the data using readLines()
• Use strsplit() to separate each line into different values.
• count the length for each character vector from the output above
• Use do.call() and rbind to form a matrix with all character values.
• Use subsetting to separate the first row, the header information, from the rest, the data.
• Use as.data.frame() to convert the matrix into a data frame, then use as.numeric() to convert the numeric columns into numeric data.
• Overwrite the names of the columns with the header information before.
• Compare your output to read.csv('fisher_1927_grain.csv', stringsAsFactors=FALSE)