How to change histogram bins in R?
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How to change histogram bins in R?

How to change histogram bins in R?

This recipe helps you change histogram bins in R

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Recipe Objective

How to change histogram bins in R? A histogram plots a graph of continuous value variable with their corresponding frequencies. The data is plotted as bars of different heights. The difference between bar plot and histogram is that the bar charts are plotted for discrete data, whereas a histogram is plotted for continuous data. A histogram provides a visual representation of the distribution of data, which helps us to know whether the data is symmetric or skewed in nature. It also displays if there are any outliners in my dataset. breaks parameter changes the histogram bins in an R code. This recipe demonstrates an example of histogram.

Step 1 - Define a vector

Syntax for histogram - hist(x, main, xlab, xlim, ylim, breaks,col) where, x - defined vector main - title of the histogram xlab - title to the X axis xlim - range of values on X -axis ylim - range of values on Y -axis breaks - mention the width/bin size of each bar col - colour of the bars

x <- c(1,5,6,3,9,7,2,8,9,7,5,1)

Step 2 - Plot a histogram

Here , the histogram returns the frequency bars of the given vector for a continuous range of values.

hist(x,main="Histogram plot",xlab="data points for x",xlim=c(0,10),ylim=c(0,5),breaks=5,col='blue') # number of bins = 5 hist(x,main="Histogram plot",xlab="data points for x",xlim=c(0,10),ylim=c(0,5),breaks=8,col='red') # number of bins = 8

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