ezplot_bar <- function(data, x) {
#prints summary statistics
print(paste(x, "summary", sep = " "))
print(summary(data[, x]))
#plots a bar graph using ggplot2. data[, x] detects a column whose title
#matches the string value stored in x.
ggplot(data, mapping = aes(data[, x])) + geom_bar(color = "white", fill = "blue") +
xlab(as.character(x))
}
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