**Kind of chart**

**Icon**

Column

2D and 3D

Stacked column

2D and 3D

Bar

2D and 3D

Stacked bar

2D and 3D

Line

2D and 3D

Area

2D and 3D

Stacked Area

2D and 3D

Pie

2D and 3D

Scatter

2D

Mixed

2D

2-Axis

2D

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**136 **

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**Chapter 9 **

Creating Charts from Data

** **

**Chapter 9 **

Creating Charts from Data

**137**

**Example**You may want to create a chart that compares how bird populations have changed in

two alpine sampling regions between 2007 and 2010. This data may first be presented

in a table with rows for Region 1 and Region 2. The researcher has counted the

number of birds in each region each year from 2007 through 2010, thus having 4

*data*

points(or values) for each region.

points

If you plot this data as a column chart, it will look like the one below:

The chart legend denotes

the four data series.

Each data set contains four bars,

one from each data series.

These two bars of the

same color represent one

data series.

Each bar represents

one data point.

In this chart, Region 1 and Region 2 are called the *data series* because the data

points (numbers of birds) from each region are represented by a *series* of columns

of the same color, one for each year. Each column for Region 1 is set beside the

corresponding column for Region 2, and each side-by-side set of columns is called a *data set *or *category* (2007 is a category, 2008 is a category, and so on).

To give a different emphasis to your data, you can transpose the the data so that data

points are grouped by region rather than by year. In this case, the data points for each *year* are represented as a series of columns (*data series*; in this case each series has

only two data points and the groups of columns for each *region* are *categories*. So this

column chart contains two sets of four columns (data points), one category for Region

1 and one data set for Region 2.

The chart legend denotes

the two data series.

Each data set contains two bars,

one from each data series.

These four bars of the

same color represent one

data series.

Each bar represents

one data point.

Data series are represented differently in different kinds of charts:

In

Â

*column charts *and *bar charts, *a data series is represented by a series of columns or

bars in the same fill color or texture.

In a

Â

*line chart *a data series is represented by a single line.

In an

Â

*area chart, *a data series is represented by an area shape.

In a

Â

*pie chart, *only a single data set (the first data point in each series) is represented

on the chart (whichever is listed first in the Chart Data Editor).

In a

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*scatter chart, *each point on the graph is determined by both an x and a y value.

Two columns of values are plotted as x coordinates and y coordinates on a graph

representing the data points in a single data series.