The qplot syntax

Let's assume that your data is loaded into R and now you wish to create a graph using the qplot() command. The generic qplot syntax is as follows:

qplot(x = X1, y = X2, data = X3, color = X4, shape = X5, size = X6, geom = X7, main = "Title")

Here, X represents the variables you wish to graph and the attributes you choose for your graph. You now have either univariate (one variable) or bivariate data (two variables), and you must provide instructions through the geom argument in order to create your graph. Now, let's explore some of the arguments in the qplot syntax:

data: This argument refers to the dataset.
color: This argument maps the color scheme onto a factor or numeric variable. Note that qplot selects default colors for each level of the variable. However, you can use special syntax to set your own colors.
shape: This argument maps symbol shapes on to factor variables, and qplot uses different shapes for different levels of the factor variable. You...

Tech Concepts

Programming languages

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

R Graph Essentials

R Graph Essentials

Overview of this book

The qplot syntax

R Graph Essentials

R Graph Essentials

Overview of this book

The qplot syntax

Confirmation

Buy this book with your credits?

Submit Your Feedback

Create a Free Account To Continue Reading

Sign in to activate your 7-day free access