The Gnumeric Manual
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# Graphs

# Graphing in Gnumeric

`Gnumeric` can create graphs with data in a worksheet. To do this, you need a modern version of `Guppi` (>= 0.40.0 ) installed that has `Gnumeric` support built in.

With `Guppi` support, you should see a new icon that looks like a graph, next to the Sort Down button in the toolbar. That is the Graph button.

`Gnumeric` can make the following graph types:

- Bar

- Column

- Line

- Pie

- Scatter

- Bubble

## Creating a Basic Graph

Creating a basic graph is a relativly straight forward process.

1. Enter data into your spreadsheet.

2. Select the data you wish to include in the graph. This includes labels for rows and columns.

3. Click the Graph button.

4. Select the type of graph you wish to use.

5. Click Finish to use the default settings.

6. Press and hold on the spreadsheet to start to draw your graph. A box will form. Drag the box to the size you wish the graph to be and let go. The graph will be drawn.

## Advanced Graphing

In no way does graphing in `Gnumeric` stop with a simple graph. In the graphs you make, you can customize it. For example, you can say which cells define the ranges or labels. If a label for a field is in paraenthesis, it means that field is optional.

### Selecting Data Ranges

In the second step of the graphing assistant, you'll find you can customize the ranges which are taken into account for drawing the graph.

At the top of the window is a preview of the graph. Below that are your settings. When you change a setting, the sample graph will change automatically to reflect your customizations.

#### Plot

A graph is made up of plots. Currently, `Gnumeric` can only generate one graph from a spreadsheet. However, you can import an `Excel` spreadsheet to use multiple plots. You can customize the data ranges of each plot.

#### Series

A the Section called Plot is made up of a group of series. A series is each item that is to be graphed.

Example 1. Series Example

A small Boston based software company is doing a spreadsheet for their montly income and spendings. The month goes on the x-axis while the dollars spent a month goes on the y-axis. Two bars are drawn for each month: in and out. In and out are the two series.

You can customize the ranges for every series included in your graph.

#### Name Data Range

The `Name` field defines what the name of each series is. This is reflected in the legend. Per the Example 1 in the Section called Series, the name for the first series would be in.

The `Name` field takes a simple reference. The reference field needs what sheet and cell the information is stored on. For more information on references, please consult the Section called Cell Referencing in the chapter called Entering data.

Example 2. Name Example

A name needs to be derived from Sheet1 and cell B1. The name field would include:

    		Sheet1!$B$1

#### Values Data Range

The `Values` field defines which data should be included in the graph. The `Values` field takes two arguements. The reference requires the sheet name and cell range the information is located on. For more information on references, please consult the Section called Cell Referencing in the chapter called Entering data.

Example 3. Values Example

A series needs to have information graphed from Sheet1, using cells B2 through B13. The following would be inserted into `Values`:

    		Sheet1!$B$2:$B$13

#### Category Labels Data Range

The `Category Labels` field sets what cells are used to derive the labels on the x-axis. The `Category Labels` takes a simple reference. The reference needs the sheet name and cell ranges that the information is on. For more information on references, please consult the Section called Cell Referencing in the chapter called Entering data.

Example 4. Category Labels Example

A graph needs to be generated that uses labels defined on Sheet1, using cells A2 or A13. The following would be inserted into `Category Labels`:

    		Sheet1$A$2:$A$13

### Customizing Graph Layout

The graph layout can be customized using the third step of the graphing assistant.

At this time, only the legend position can be edited. This is done by selecting the Position radio buttons at the bottom of the window. The demo graph will be updated accordingly.

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