Sometimes when charts have a high density of data points such as line charts with multiple series, the visualization may end up being cluttered and may obscure. <\/p>\n
With some careful planning, data-density issues can be avoided using a multitude of approaches. One approach, which I will discuss here, is the small multiple<\/a> or the grid chart. This solution separates data series into individual charts are arranged in a grid, with identical, axes and chart type.<\/p>\n The small multiple can be very useful and easy to set up. Nevertheless, this method is not a very popular approach, probably because developers and designers may believe it is difficult to set up, or they are just not aware of this powerful method. <\/p>\n In this tutorial, I will show you how to set up a small multiple, as well as discuss the advantages and disadvantages of this data visualization method. <\/p>\n First, let\u2019s examine a chart symptomatic of this problem. The demo below displays the Euro foreign exchange reference rates of 10 different currencies from January 2009 to July 2018 on the same chart.<\/p>\n