Create Plotly Bar Chart with Values on Top of Bars in R

To create plotly bar chart with values on top of bars in R, we can follow the below steps −

• First of all, create two vectors one having categories and one counts and create the bar chart using plotly.
• Then, create the same bar chart with add_text function of plotly package.

Create the vectors and plotly bar chart

Using c function to create the vectors and plotly function with layout function to create the bar chart with axes titles −

x<-c("A","B","C")
freq<-c(48,40,42)
library(plotly)
plot_ly(x=x,y=freq,type="bar")%>%layout(xaxis=list(title="X"),yaxis=list(title="Y"))

Output

Create the bar chart with counts on top of the bars

Using add_text function to create the bar chart with counts on top of the bars −

x<-c("A","B","C")
freq<-c(48,40,42)
library(plotly)

plot_ly(x=x,y=freq,type="bar")%>%layout(xaxis=list(title="X"),yaxis=list(title="Y"))%
>%add_text(x=x,y=freq,text=freq,textposition="top")

Output