To change chart types, go into Edit Metric for the metric you want to change. At the top of the page, you can select the chart type that better matches the data you want to display.
You can choose what chart type you want when you are building the metric for the first time or after you have already created it.
Questions? Email us at firstname.lastname@example.org or chat in on the site.
The following articles may be helpful in continuing to build your metric: