The number of bins therefore needs to be chosen appropriately. If we have too many bars, we are not summarizing the data enough, whereas if the number of bars is too low, we are summarizing too much. We only change the width of the bin to ‘3’ by first checking the checkbox beside the respective field and entering in the value. Decreasing the number of bins will increase the width of each bin. In the ‘Bins’ section, users can type in the number of bins, width of the bins and the starting value/lower limit of the first bin. You can also specify whether your variable is discrete or continuous by choosing any one of the options under the ‘Data’ section. Therefore, you can choose only one option for the Y-axis. Radio buttons indicate that the options provided are mutually exclusive. Open the dialogue box again and under the ‘Y axis’ section, check the radio button titled ‘Frequency’. Secondly, we want the vertical axis to display the frequency instead of density which it shows by default. Firstly, we want to adjust the bar width. In our example, the histogram for the variable ‘mpg’ has eight bins that start from the x-axis value of 12. In the results section, you will notice the number of bins, their starting value and the bin width also reported. Therefore, the drop-down menu in the dialogue box allows you to choose just one variable for the histogram. It should be noted that a histogram can show the frequency distribution (or density, frequency or fraction) of only one variable at a time. A separate window with the histogram displayed will be opened. In the dialogue box that opens, choose a variable from the drop-down menu in the ‘Data’ section, and press ‘Ok’.
To create histogram in Stata, click on the ‘Graphics’ option in the menu bar and choose ‘Histogram’ from the dropdown.
We now want to create a histogram for the variable ‘mpg’ which holds data for the mileage of an automobile. Click on the ‘use’ option in front of the dataset name in the list in order to load it in memory. Go to File -> Example Datasets -> “Example Datasets Installed With Stata”. Let’s load one of Stata’s inbuilt datasets to see how histograms are created.
#6 BIN HISTOGRAM MAKER HOW TO#
In this article we are going to learn how to create Histogram in Stata
Histograms are a common way of graphically representing the frequency distribution of data.
0 kommentar(er)
