Types of Dot Plotĭot plots, just like many other data visualization methods can refer to a variety of graph styles. The dots will combine to form a straight line, and this will be repeated for other variables in the dataset. The corresponding data points for each pair of data is indicated with a set of dots drawn directed towards the x-axis. This graph is plotted by organizing one group of data set on the horizontal axis, and the other on the vertical axis. It usually takes the form of a bar graph or histogram in the sense that the height of each set of vertical dots is equal to the number of items in that class interval.Īlso known as a dot graph, it is used to depict certain data trends in various fields. The dot plot is a statistical chart that consists of data points that are vertically illustrated with dot-like markers. More information about a dot plot will be shared in this article, including examples and how you can create one to visualize your data using Excel. Although originally hand-drawn in distributions in 1884, the modern version of dot graphs was said to originate from William S. It is a histogram-like graph used for relatively small data sets that are made up of various groups of mini-datasets. Dot plots are similarity matrices used in various applied mathematical and statistical fields to examine the similarities between continuous, univariate, and quantitative data. One way to visualize the similarity between variables in statistical data analysis is by stacking data points (or dots) in a column, making up what we call a dot plot.