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Line Chart: It is used to show trends over a period of time. It is similar to plotting a graph on
                 a graph paper with its values on X and Y axis. It uses connecting dots to display trends over a
                 period of time.
                 Column Chart: It is usually used to display the data in the form of vertical bars. It is used to show the

                 changes in data over a period of time or comparison among the different data items. The categories
                 are represented on the horizontal axis and the values are represented on the vertical axis.
















                                      Line chart                                     Column chart
                 Pie Chart: It is a circular chart divided into sectors where each sector
                 shows the relative size of each value. It always shows only one data
                 series. It is useful when you want to emphasis on a significant element.

                 Bar Chart:  The  bar  chart  displays  the  data  in  the  form  of  long
                 rectangular  rods  also called bars.  These bars  can  be placed
                 horizontally on the chart area. It illustrates the comparisons amongst             Pie chart
                 the individual items. In this chart, categories are represented on the vertical axis and values are
                 represented on the horizontal axis.

                 Area Chart: It is used to display the quantitative magnitude of the data graphically. These charts
                 are based on the features of the line chart. They basically emphasise the area between the line
                 and the axis with the help of the colours, textures, pictures, etc.












                                        Bar chart                                    Area chart

                 Change Chart Type
                 You can change the type of an existing chart at any time. Perform the following steps to change
                 the chart type:

                 Step 1  Double-click anywhere on the chart. The Formatting toolbar will appear below the
                          menu bar.



                                                           Formatting toolbar

                                                                        Formulas, Functions and Charts in Calc       27
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