Bar Chart
A bar chart is a type of graph that displays the distribution of a categorical variable. It is useful for comparing the frequencies or proportions of different categories.
R
# create a bar chart of the table # of gear counts in the mtcars data barplot(table(mtcars$gear), xlab = "Number of Gears", ylab = "Frequency", main = "Bar chart of gear counts") |
Output:
Bar plot for Graphical Data Analysis
This creates a bar chart of the number of gears in the mtcars data set. The table function is used to generate a frequency table of the gear counts, which is then passed to the barplot function. The xlab, ylab, and main arguments specify the labels for the x and y axes and the main title, respectively.
Graphical Data Analysis in R
Graphical Data Analysis (GDA) is a powerful tool that helps us to visualize and explore complex data sets. R is a popular programming language for GDA as it has a wide range of built-in functions for producing high-quality visualizations. In this article, we will explore some of the most commonly used GDA techniques in the R Programming Language.
For the data visualization, we will be using the mtcars dataset which is a built-in dataset in R that contains measurements on 11 different attributes for 32 different cars.
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