Plot Shaded Area between vertical lines in R

Plotting a shaded area between vertical lines means to put a vertical rectangle on a different color plot as compared to the rest of the plot area. We create this rectangle depending on the conditional values of the x-axis and represent the pivot area on the basis of characteristics of the data. This can be obtained using R and is described how in his article.

Function used

• geom_rect() function is used to draw a rectangle

Syntax:

geom_rect(xmin, xmax, ymin, ymax, size, linetype, color, fill, alpha)

• geom_vline() draws a vertical line at a specified position

Syntax:

geom_vline(xintercept, size, linetype, color, alpha)

Approach 1:

• Create frame
• Create plot
• Now draw a rectangle to represent two vertical lines- first we will draw a hollow rectangle
• Now add required color using fill parameter

Program 1: Draw two vertical files

Output: 

Program 2: Fill color between lines 

Output: 

Approach 2: 

• Create frame
• Draw two vertical lines
• Fill color between them using a rectangle

Program 1: Drawing two lines 

Output: 

Program 2: Fill color between these lines  

Output: