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URL: https://plotly.com/r/histograms/

⇱ Histograms in R

Basic Histogram

library(plotly)fig<-plot_ly(x=~rnorm(50),type="histogram")fig

Normalized Histogram

library(plotly)fig<-plot_ly(x=~rnorm(50),type="histogram",histnorm="probability")fig

Specify Binning Function

library(plotly)x=c("Apples","Apples","Apples","Organges","Bananas")y=c("5","10","3","10","5")fig<-plot_ly(y=y,x=x,histfunc='sum',type="histogram")fig<-fig%>%layout(yaxis=list(type='linear'))fig

Horizontal Histogram

library(plotly)fig<-plot_ly(y=~rnorm(50),type="histogram")fig

Overlaid Histograms

fig<-plot_ly(alpha=0.6)fig<-fig%>%add_histogram(x=~rnorm(500))fig<-fig%>%add_histogram(x=~rnorm(500)+1)fig<-fig%>%layout(barmode="overlay")fig

Stacked Histograms

fig<-plot_ly(alpha=0.6)fig<-fig%>%add_histogram(x=~rnorm(500))fig<-fig%>%add_histogram(x=~rnorm(500)+1)fig<-fig%>%layout(barmode="stack")fig

Cumulative Histogram

library(plotly)fig<-plot_ly(x=~rnorm(50),type="histogram",cumulative=list(enabled=TRUE))fig

Share bins between histograms

In this example both histograms have a compatible bin settings using bingroup attribute. 

library(plotly)fig<-plot_ly(type='histogram',x=~rnorm(100,5),bingroup=1)fig<-fig%>%add_trace(type='histogram',x=~rnorm(20,5),bingroup=1)fig<-fig%>%layout(barmode="overlay",bargap=0.1)fig

Note that traces on the same subplot, and with the same barmode ("stack", "relative", "group") are forced into the same bingroup, however traces with barmode = "overlay" and on different axes (of the same axis type) can have compatible bin settings. Histogram and histogram2d trace can share the same bingroup.

library(plotly)fig<-plot_ly(type='histogram',x=~rnorm(100,5))fig<-fig%>%add_trace(type='histogram',x=~rnorm(20,5))fig<-fig%>%layout(barmode="stack",bargap=0.1)fig

Reference

See https://plotly.com/r/reference/#histogram for more information and chart attribute options!

What About Dash?

Dash for R is an open-source framework for building analytical applications, with no Javascript required, and it is tightly integrated with the Plotly graphing library.

Learn about how to install Dash for R at https://dashr.plot.ly/installation.

Everywhere in this page that you see fig, you can display the same figure in a Dash for R application by passing it to the figure argument of the Graph component from the built-in dashCoreComponents package like this:

library(plotly)fig<-plot_ly()# fig <- fig %>% add_trace( ... )# fig <- fig %>% layout( ... ) library(dash)library(dashCoreComponents)library(dashHtmlComponents)app<-Dash$new()app$layout(htmlDiv(list(dccGraph(figure=fig))))app$run_server(debug=TRUE,dev_tools_hot_reload=FALSE)