Histograms VS. Bar Charts
Charts and Graphs
Definition of Histograms and Bar Charts
Bar charts and histograms can both be used to compare the sizes of different groups. A bar chart is made up of bars plotted on a graph.
The histogram is a chart representing a frequency distribution; heights of the bars represent observed frequencies. In other words, a histogram is a graphical display of data using bars of different heights. Usually, there is no space between adjacent bars.
We can see their common point from the definitions: The height of the column indicates the size of the group defined by the column label.
Difference between Histograms and Bar Charts
- The columns are positioned over a label that represents a categorical variable.
- The height of the column indicates the size of the group defined by the categories.
- The columns are positioned over a label that represents a quantitative variable.
- The column label can be a single value or a range of values.
Here is the main difference between them. With bar charts, each column represents a group defined by a categorical variable; and with histograms, each column represents a group defined by a quantitative variable.
One indication of this distinction: it is always appropriate to talk about the skewness of a histogram; that is, the tendency of the observations to fall more on the low end or the high end of the X axis.
Differently, bar charts' X axis does not have a low end or a high end; because the labels on the X axis are categorical - not quantitative. Therefore, it is less appropriate to comment on the skewness of a bar chart. Refer to the following diagram to see a visual comparison between them.
Why Use Histograms and Bar Charts
Like many other visuals, histograms and bar charts are gaining increasing popularity for the following benefits.
- Ease data analysis.
- Simplify complicated statistics and ideas.
- Add interest and fun to presentation (reports, essays and so on).
- Make presentation more compelling and comprehensible.
- Enhance effective information communication.
Histograms and Bar Charts Maker
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Histograms and Bar Charts Examples
Histogram Example - Candy Assumption
This histogram is about candy assumption. You can edit it easily by using the floating action button and simply changing the data value.
Column Chart Example - Sales Growth
Bar Chart Example - Sales Report
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