Geom_line(aes(y = enzyme_two_activity),col ="blue")+ Geom_line(aes(y = enzyme_two_activity),col ="blue") Geom_line(aes(y = enzyme_one_activity),col ="red") + One such library is “ggplot2”.īelow is the ggplot2 library which helps to draw line graph in R are as follows: 1. However, there are other libraries/functions also available which help us draw the line graph. Note: All the line graphs plotted above were through the function plot(). Title="Event types", text.font=3, bg='lightblue') One can also customize legend, see below: If some doesn’t want to deal with coordinates, one specify legend position in terms of keywords like: “bottom”,”bottomright”, “bottomleft”, “left”, “topleft”, “top”, “right”, “topright” and “center”. The first two parameters in the legend function show the x and y-axis where legend needs are placed. However, from a readability perspective, it could be placed as per one’s own comfortability. The legend is usually placed on the top right-hand side corner. Legend plays a crucial factor there in order to understand plotted data in a lucid way. When there are more than two lines in the same line graph, it becomes clumsy to read.
Line graph examples how to#
We saw how to plot multiple lines in a single line chart. Plot(events1,type = "o",col = "red", xlab = "Month", ylab = "Event Count",
Line graph examples code#
In order to plot multiple lines in a single line chart, below is the R code for that: In a real-world scenario, there is always a comparison between various line charts. See the location, and you will find “Line_chart.png” will be created. Function: getwd() and setwd() can help you do so. Here the png file will be saved in your current working directory, which you always check and change as per your requirement. However, there come to the cases when you need to save it in the local system in the form of png files. The line graph drawn till now is in Rstudio pane. Plot(Vec,type = "o",xlab = "Month", ylab = "Event Count", main = "Event Count by Month")įig 3: Vector plot with customized labels 2. Here you will notice x label, y label has not been assigned, so the default names as came. Plot(Vec,type = "o") # Plot the bar chart. Simple Line Graph in R code (with Plot function): However, for ggplot, the library “ggplot2” needs to be installed and read that library like: “library(ggplot2)” in the R environment.įor installation in RStudio.
Line graph examples install#
For plot(), one need not install any library. The first function we will learn is plot() and another one would be ggplot.
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