Chapter 6 Advanced Graphing Techniques

Excel offers a plethora of advanced graphing techniques that take data visualization to new heights. In this chapter, we will explore the more sophisticated features of Excel graphs, including 3D charts, sparklines, and histograms. We will then delve into creating dynamic charts using data tables and named ranges, as well as utilizing pivot charts and slicers for interactive data visualization.

6.1 3D Charts: Adding a New Dimension to Data Visualization

3D charts introduce a third dimension to data visualization, providing a unique perspective on data relationships. By adding depth to the chart, 3D charts can reveal patterns and trends that might be less apparent in traditional 2D charts. Excel offers various types of 3D charts, such as 3D column charts, 3D line charts, and 3D surface charts.

To create a 3D chart in Excel:

  • Select the data you want to include in the chart.
  • Click on the “Insert” tab in the Excel ribbon.
  • Choose the desired 3D chart type from the “Charts” group.
  • Excel will insert the 3D chart into your worksheet.
  • Customize the chart’s appearance and data series as needed.

While 3D charts can be visually engaging, exercise caution when using them. In some cases, the additional dimension may distort the data or make it more challenging to interpret accurately. Use 3D charts judiciously, keeping the focus on clarity and data integrity.

6.2 Sparklines: Tiny Charts with Big Insights

Sparklines are miniature charts that fit within a single cell, providing a quick visual representation of data trends. Sparklines are particularly useful when you want to show data variations or patterns alongside the data itself. Excel supports three types of sparklines: line sparklines, column sparklines, and win/loss sparklines.

To create sparklines in Excel:

  • Select the range of data where you want to insert the sparklines.
  • Go to the “Insert” tab in the Excel ribbon.
  • Choose the type of sparkline you want to create from the “Sparklines” group.
  • Excel will insert the sparklines into each selected cell, visually representing the data trends.

Sparklines are an excellent choice for adding compact data visualizations to tables and dashboards, providing immediate insights without taking up much space.

6.3 Histograms: Unraveling Data Distributions

Histograms are essential tools for understanding data distributions and frequency. They group data into intervals, called bins, and display the frequency of data points falling within each bin. Histograms are particularly useful when dealing with large datasets and analyzing data patterns.

To create a histogram in Excel:

  • Organize the data into a single column in a worksheet.
  • Click on the “Data” tab in the Excel ribbon.
  • Choose “Data Analysis” from the “Data Tools” group.
  • Select “Histogram” from the list of data analysis tools and click “OK.”
  • Enter the input range for the data and specify the bin range or let Excel determine the bins automatically.
  • Choose the location for the histogram output (new worksheet or existing worksheet) and click “OK.”

Excel will generate a histogram chart that displays the data distribution and allows you to assess data patterns and frequencies.

6.4 Dynamic Charts

Dynamic charts in Excel take data visualization to the next level, providing users with the ability to interactively explore and analyze data. Unlike static charts, dynamic charts update automatically when the underlying data changes, allowing for real-time insights and scenario analysis. In this guide, we will delve into the world of dynamic charts in Excel, exploring how to create them using data tables and named ranges, and understanding their applications and benefits.

6.4.1 Introducing Dynamic Charts

Dynamic charts are charts that adapt and change as the underlying data changes. They offer a more interactive and engaging way to visualize data, allowing users to interact with the chart and observe the impact of changing variables on the graph.

6.4.2 The Power of Data Tables for Dynamic Charts

Data tables are essential for creating dynamic charts in Excel. A data table is a range of cells that shows how changing one or two variables affects the results of a formula. By using data tables, you can create scenarios and observe the effects of different input values on the charted data.

6.4.3 Creating Data Tables

To create a data table in Excel:

  • Set up your data and formulas in a separate worksheet.
  • Identify the cell containing the formula that you want to vary.
  • Click on the “Data” tab in the Excel ribbon.
  • Select “What-If Analysis” from the “Data Tools” group.
  • Choose “Data Table” from the drop-down menu.
  • Enter the cell reference of the cell containing the input value you want to change (e.g., a cell representing growth rate).

Excel will automatically populate the data table with different scenarios based on the specified input value. The chart linked to the data table will update in real-time as you change the input value.

6.4.4 Benefits of Using Data Tables for Dynamic Charts

Using data tables for dynamic charts offers several advantages:

  • Real-time Visualization: Data tables provide instant feedback, allowing users to visualize the impact of changes on the charted data immediately.
  • Efficient Scenario Analysis: With data tables, users can create multiple scenarios by changing a single input value, enabling easy comparison and analysis of different data variations.
  • Interactive Exploration: Dynamic charts with data tables enable users to interact with the data and gain deeper insights by adjusting key parameters.