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Bar chart
 
 
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A bar chart or bar graph is a chart
Chart

and A chart is a visual representation of data, in which the data are represented by symbols such as bars in a bar chart or lines in a line chart....
 with rectangular
Rectangle

In geometry, a rectangle is a Closed set planar quadrilateral with four right angles. A rectangle with vertices ABCD would be denoted as .A rectangle with adjacent sides of lengths a and b has area ab and diagonals of equal length ....
 bars with length
Length

Length is the long dimension of any object. The length of a thing is the distance between its ends, its linear extent as measured from end to end....
s proportional to the values that they represent. Bar charts are used for comparing two or more values. The bars can be horizontally or vertically oriented. Sometimes a stretched graphic is used instead of a solid bar. It is a visual display used to compare the amount or frequency of occurrence of different characteristics of data and it is used to compare groups of data.

following table lists the number of seats allocated to each party group in European elections in 1999 and 2004.






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A bar chart or bar graph is a chart
Chart

and A chart is a visual representation of data, in which the data are represented by symbols such as bars in a bar chart or lines in a line chart....
 with rectangular
Rectangle

In geometry, a rectangle is a Closed set planar quadrilateral with four right angles. A rectangle with vertices ABCD would be denoted as .A rectangle with adjacent sides of lengths a and b has area ab and diagonals of equal length ....
 bars with length
Length

Length is the long dimension of any object. The length of a thing is the distance between its ends, its linear extent as measured from end to end....
s proportional to the values that they represent. Bar charts are used for comparing two or more values. The bars can be horizontally or vertically oriented. Sometimes a stretched graphic is used instead of a solid bar. It is a visual display used to compare the amount or frequency of occurrence of different characteristics of data and it is used to compare groups of data.

Example

The following table lists the number of seats allocated to each party group in European elections in 1999 and 2004. The results of 1999 have been multiplied by 1.16933, to compensate for the change in number of seats between those years. A bar chart visualizing the above results of the 2004 election can look like this:
(If all the values were arranged in descending order this type of bar graph would be called a pareto chart
Pareto chart

A Pareto chart is a special type of bar chart where the values being plotted are arranged in descending order. The graph is accompanied by a line graph which shows the cumulative totals of each category, left to right....
.)

This bar chart shows both the results of 2004, and those of 1999:

See also

Category:Bar chart templates
  • Histogram
    Histogram

    In statistics, a histogram is a graphical display of tabulated frequency , shown as bars. It shows what proportion of cases fall into each of several Categorization....
  • Gantt chart
    Gantt chart

    A Gantt chart is a type of bar chart that illustrates a schedule . Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project....
  • Open-high-low-close chart
    Open-high-low-close chart

    An open-high-low-close chart is a type of chart typically used to illustrate movements in the price of a financial instrument over time. Each vertical line on the chart shows the price range over one unit of time, e.g....
  • Candlestick chart
    Candlestick chart

    A candlestick chart is a style of bar-chart used primarily to describe price movements of an Stock over time.It is a combination of a line-chart and a bar-chart, in that each bar represents the range of price movement over a given time interval....
  • Pie chart
    Pie chart

    A pie chart is a circle chart divided into Circular sectors, illustrating relative magnitude or frequencies. In a pie chart, the arc length of each sector , is proportionality to the quantity it represents....
  • List of information graphics software#Plotting programs (graphing programs)
    List of information graphics software

    This is a list of software to create any kind of information graphics:* either includes the ability to create one or more infographics from a provided data set...
  • Commons:Chart and graph resources
  • commons:Bar chart - many free bar chart examples organized by type.


External links

  • , Statistics: Power from Data!, Statistics Canada
  • (many can handle bar charts)
  • . Free online graph creation tool at the website for the National Center for Education Statistics
    National Center for Education Statistics

    The National Center for Education Statistics , as part of the United States Department of Education's Institute of Education Sciences , collects, analyzes, and publishes statistics on education and public school district finance information in the United States; conducts studies on international comparisons of education statistics; and provid...
     (NCES)
  • . Free online bar chart generator. Also; line charts and pie charts. The tool is based on the free software JFreeChart
    JFreeChart

    JFreeChart is an open-source framework for the programming language Java , which allows the creation of complex Chart in a simple way.JFreeChart also works with GNU Classpath, a free software implementation of the standard Java Class Library for the Java ....
    .