Stem and leaf plot

Two graphical results are included in the explore output. The first, in the following image, is a stem and leaf plot that summarizes the distribution of the field into groups using a stem value and showing the number of rows in the data that fall into each using a leaf symbol. As years of schooling has a relatively small range of values (0-20), each group in this stem and leaf plot is comprised of a single value. The legend at the bottom of the graph indicates that a leaf symbol represents 9 cases or, in this instance, individual people. The graph reflects the large groups at key points along the education spectrum corresponding to stopping at high school (12 years) and at completion of college (16 years). There are also 17 extreme values of 5 or fewer years of formal schooling: