% ggplot(aes(x=year, violent_per_100k)) + geom_line() And the resulting plot we got is not what we intended. If it isnât suitable for your needs, you can copy and modify it. To plot multiple lines in one chart, we can either use base R or install a fancier package like ggplot2. # Display both charts side by side thanks to the patchwork package, # Add a second axis and specify its features, # Divide by 10 to get the same range than the temperature, the second Y axis is like the first multiplied by 10 (, the value be display in the second variable. Note that because of that you canât easily control the second axis lower and upper boundaries. You can quickly add vertical lines to ggplot2 plots using the geom_vline() function, which uses the following syntax: geom_vline(xintercept, linetype, color, size) where: xintercept: Location to add line on the x-intercept. This post describes how to build a dual Y axis chart using R and ggplot2. Laying out multiple plots on a page Baptiste Auguié 2019-07-13. Finally, we can use our long data to draw a ggplot2 graph containing multiple lines as shown below: ggp2 <- ggplot ( data_long, # Create ggplot2 plot aes ( x = x, y = value , color = variable ) ) + geom_line ( ) ggp2 # Draw ggplot2 plot Plots themselves become graphical objects, which can be arranged on a page using e.g. It just builds a second Y axis based on the first one, applying a mathematical transformation. Note that this kind of chart has major drawbacks. Use it with care. ; More generally, visit the [ggplot2 section] for more ggplot2 related stuff. It just builds a second Y axis based on the first one, applying a mathematical transformation. The next step was to work out how to plot both ârollingâ and âactualâ on the same line chart. *10 mathematical statement. how to plot two lines in a graph in ggplot, how to create more than one line in a column using ggplot in r, plot two lines on the same ggplot graph r, plot two lines on hte same ggplot graph r, convert all numeric columns to percentages R, get list of words that are in two lists using set, ggplot - subset top 10 in a stack bar plot, how to get quantile summary statistics in r summarise, how to round all numeric column types in r, r - create a new empty variable in a dataset, r - extracting specific columns from a data frame, R convert list of lists into single numeric list, r convert matrix to list of column vectors, r find elements in common between vectors, r ggplot hide one legend group from multiple legends, R grid all possibilites between two vectors, r number of columns or rows of result is not a multiple of vector length, r return index of rows that have NA in dataframe, r set column values as rownames in dataframe, r: network randomization test igprah stakoverflow, replace na in a column with values from another df, sql check if list of phrases exist in a string, What percentage of the row will the following column occupy on desktop devices: