Using Bar Graphs to present the data

In this lecture I will show you how we can make use of Barcroft to present data about graph. A graphical display of data using BOD's of different heights to understand this. Let us draw our bar graph for our shoe brand example. Direct to X is vertical and horizontal legalistic and horizontal axis to represent the classes that we are comparing. In our example these classes are Nike. If he bought land Adidas and Barta and on the other axis that is the vertical version. Let us take the numerical values to the present data. These numerical values could be frequency related frequency or person frequency. It depends on us what we want to use to represent our data for this example. Let's go ahead with frequency. So I'm taking frequency on the vertical axis and the glasses on the horizontal axis. Now we draw our bond above each class and we extend the length of the barn until we reach the frequency of the class once we are done with drawing bars for all the classes. This is how the body graph looks like note how the graphical presentation shows Nike Reebok and Adidas to be the most preferred brands this type of bar graph is known as a vertical bar graph as the bus that we have drawn here. Vertical it is not necessary to use a vertical bar graphs always. We can also make a horizontal bar graph with bars drawn horizontally. In fact we prefer a horizontal bar graph over a vertical bar graph to compare classes. If our data has negative and positive values for example if you are calculating the positive change on a monthly basis for any variable that you want to measure in your business lets take sales of your product for now. Then you might get to witness negative doesn't it change as well for a few months. In that case if you draw a horizontal bar graph it may look something like this do the concept of Barcroft sounds quite simple but it is vitally used. It can be used in quality control applications as well to identify the most important causes of problems. For example have a look at the falling bar graph this bar graph is showing how many customer complaints were received in each of five categories in the first quarter of 2016. Here I have arranged the bars in descending order of height from left to right with the most frequently occurring cause operating first. So this means if all complaints cause equal distress to the customer then looking on eliminating document related complaints would have the most impact this type of bug graph is called up by the door diagram.