A line plot is a graph that connects a series of points by drawing line segments between them. These points are ordered in one of their coordinate (usually the x-coordinate) value. Line plots are usually used in identifying the trends in data. R Line plot is created using The **plot() **function

**Syntax R Line plot**

The basic syntax to create a line plot in R is:

Following is the description of the parameters used:

**v**is a vector containing the numeric values.**type**takes the value “p” to draw only the points, “l” to draw only the lines and “o” to draw both points and lines.**xlab**is the label for x axis.**ylab**is the label for y axis.**main**is the Title of the chart.**col**is used to give colors to both the points and lines.

**Example for Line Plot in R**

A simple line plot in R is created using the input vector and the type parameter as “O”.

# R line plot v <- c(8,14,26,5,43) plot(v,type="o")

When we execute the above code, it produces the following result:

**R Line Plot with Title, Color and Labels**

The features of the line plot can be expanded by using additional parameters. We add color to the points and lines, give a title to the chart and add labels to the axes by making following changes to the above script.

v <- c(8,14,26,5,43) plot(v,type="o",col="blue",xlab="Month",ylab="Rain fall",main="Rain fall chart")

When we execute the above code, it produces the following result:

**Multiple Lines in a R Line Plot:**

More than one line can be drawn on the same chart by using the **lines() **function. After the first line is plotted, the lines() function can use an additional vector as input to draw the second line in the chart.

v <- c(8,14,26,5,43) t <- c(14,7,8,10,13) plot(v,type="o",col="blue",xlab="Month",ylab="Rain fall",main="Rain fall chart") lines(t, type="o", col="red")

When we execute the above code, it produces the following result: