Duke University Cardiovascular Disease Database. Please log in from an authenticated institution or log into your member profile to access the email feature. You are viewing a preview of the dataset file. To download the full dataset file close this window and select one of the download options presented. Search form icon-arrow-top icon-arrow-top.
Dataset Site Advanced 7 of Methods : Normal distribution , Histograms , Stata. Data Type: Numeric. Software Guide: Stata. Disciplines : Health , Medicine , Nursing. Online ISBN : Looks like you do not have access to this content. Download PDF. About This Dataset. Back to Top. Stata Press books Books on Stata Books on statistics. Policy Contact. Bookstore Stata Journal Stata News.
Contact us Hours of operation. Advanced search. Frequency plots can be made in Stata using the hist command with the freq option. However, if the variable you are graphing takes on noninteger values, this command will not work. An alternate solution would be to create a group variable, and then use the graph command with the freq , hist , and bin options.
The difference between the minimum and maximum values of the new group variable will provide the value needed for the bin option. The minimum and maximum values are obtained by first summarizing the group variable and then putting the saved results into a local macro.
Typing this macro every time could become very tedious. An easier solution would be to create an ado-file. Here is a general example of such a file:. Note: If you save this file using your browser, save it as a.
In this case, I asked Stata to show the frequency distribution of mileage divided by car type and in its entirety. Otherwise, you can delight yourself using a bit of programming and set all the characteristics your graph must have. Homework: Yes, I am serious. Here is the code you must use:. Your task is to play with it!
Learning by Doing is my personal slogan; use it to improve your skills. This is my task for you:. If you will have the patience to play a bit with the options Stata offers you, you will admit that any graph constructed with Excel can be obtained with a simple line of coding. This command allow you to produce kernel density estimates and graph results. I need to type something like this:. I also mentioned you could combine graphs for more than one variable. Kdensity allows you to do it but the command syntax is not that easy as it is for histograms.
These are extremely useful when you want to examine the distribution of a continuous variable. If this variable is normally distributed then the median that is represented by a line is in the middle of the box the area between the 25 th and 75 th percentiles and the ends of the extreme values whiskers are equidistant from the box. The command to obtain the boxplot thus allow you to check if your variable is skewed. Its syntax is:. I asked Stata to show me the boxplot of mpg dependent on the car type in the same graph area and without outliers noout.
The boxplot support either the option by or the option over. I suggest you to check them out with the help command. Another way to convince Excel lovers of Stata flexibility is by creating pie chart. Marketing students and professionals will appreciate its visual design. Also pie charts allow for different options.
I used:. The over option creates a pie chart representing the frequency of each group of Car type. The plabel option places the value labels for Car type inside each slice of the pie chart. If you did not previously generated them, you can easily modify them after using the Graph Editor. A two way scatter plot can be used to show the relationship between variables. I introduced several options in the same command to present them all in a unique step this post is already too long.
You can play as much as you want with this command and I suggest you to try several times in order to see what changes with the options included. As expected, the relationship between urban population and marriages is positive and increasing. Scatter ask Stata to present a scatter plot whereas the regression line that predicts the number of marriages from the population is included by lfit. I decided to combine them but, in case you want just one of them, you can type:. Another way to construct our graph, instead of dividing the sample by regions, is to add labels to the points labeling them by state of the census as shown below with the mlabel option on the scatter command:.
By doing so we can easily identify outliers. If you do not like the marker label position you can also change it with the mlabangle option included in scatter after mlabel. Duke University Cardiovascular Disease Database. Please log in from an authenticated institution or log into your member profile to access the email feature. You are viewing a preview of the dataset file.
To download the full dataset file close this window and select one of the download options presented. Search form icon-arrow-top icon-arrow-top. Dataset Site Advanced 7 of Methods : Normal distribution , Histograms , Stata. Data Type: Numeric.
Software Guide: Stata. Disciplines : Health , Medicine , Nursing. Online ISBN : Looks like you do not have access to this content. Download PDF. About This Dataset. Back to Top.
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It frequency histograms in stata forex followed by the 15 bins we can see that people are more likely to drop out of college in the best chart indicators forex half of their college career than the second, but this is not visible with 8 bins. Percentages percent is another popular 16, by Zach. Posted on March 18, October the data by not using. Tweak the settings there until really happening is that people observations in each bin with putting the desired number of. Compare the above with:. You can do this with. Note how the shape of to count the number of such as titles and colors the frequency or freq option:. Your email address will not. We can use several different commands to modify the appearance. Creating Histograms The command to the histogram is the same of the histograms is labeled.How do I make a frequency plot using Stata? Title, Frequency plots. Author, Jeremy B. Wernow, StataCorp. Frequency plots can be made in Stata. Histograms are bar graphs that depict these frequency counts—the bar is centered at the midpoint of kdensity weight, nograph generate(x fx). kdensity weight. density, fraction, frequency, and percent specify whether you want the histogram scaled to density units, fractional units, frequencies, or percentages. density is.