A histogram is a visual representation of the distribution of a dataset. A histogram represents the frequencies of values of a variable bucketed into ranges. Histogram is similar to bar chat but the difference is it groups the values into continuous ranges. Each bar in histogram represents the height of the number of values present in that range. R histogram is created using **hist**() function. This function takes a vector as an input and uses some more parameters to plot histograms.

**Syntax R Histogram**

The basic syntax for creating a R histogram is:

Following is the description of the parameters used:

**v**is a vector containing numeric values used in histogram.**main**indicates title of the chart.**xlab**is used to give description of x-axis.**xlim**is used to specify the range of values on the x-axis.**ylim**is used to specify the range of values on the y-axis.**breaks**is nothing but number of bins.**col**is used to set color of the bars.**border**is used to set border color of each bar.

__Example of histogram in R :__

This code computes a histogram of the data values from the dataset named AirPassengers (a default dataset in R)

hist(AirPassengers,main="Histogram for Air Passengers",xlab="Passengers", border="red",col="blue",xlim=c(100,700),breaks=5)

Here the limit of x axis is from 100 to 700. Number of bins is 5. Border is red in colour and the colour of histogram is blue. When we execute the above code the result will be