How to Plot Two Things on the Same Y Axis in Excel. Properly formatted charts and graphs can help you grasp the patterns and trends hidden within the raw data of an Excel spreadsheet.

For example, you could show line graphs for temperature and humidity on top of each other. For this purpose, Excel lets you add a series of data to a chart and plot it on a second y-axis.

Using a time series layer to histograms and box and whisker plot visualizations can add true diagnostic value. This is part three of a three-part series about Bing's data distribution tools.