How Do You Draw A Stacked Bar Graph?
A stacked bar graph is a form of charting which displays linked values as portions of a single bar. Like a pie chart, a stacked bar graph makes relative percentages visible at a glance, without losing any of the essential data. However, the advantage of a stacked bar graph over a pie chart is that multiple data sets can be presented side-by-side, for easier comparison. Tally the values in your data sets for each value of your changing factor. The changing factor is the value that allows you to track variations over a given period, and which you will use for your x-axis. It could be anything from shoe sizes or the months of the calendar in each business year to how many seconds it took a group of athletes to run 100 meters. Find the highest value in your tallied data set and compare this to the lowest value, to determine the step size for your graph. This is the difference in value between each of the vertical points on your graph. For example, if you have a high value of 160 and a low
