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HISTOGRAM STATA HOW TO
See general information about how to correct material in RePEc.įor technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact. When requesting a correction, please mention this item's handle: RePEc:boc:bocode:s456949. You can help correct errors and omissions. Suggested CitationĪll material on this site has been provided by the respective publishers and authors. The user can also input a custom title and notes if required.Historaj produces a Histogram, with normal overlay, which is very similar to the example histogram in the help file for histogram see this here: histogram).which displays the histogram of the volume of S&P 500 from January 2001 - December 2001, sourced from Yahoo!Finance and Commodity Systems, Inc. The program allows the user to specify whether the histogram is to be scaled to density units, fractional units, frequencies, or percentages.Even where the user selects a subsample by specifying if or in, the descriptive statistics of the whole sample are displayed in the results window. Other descriptive statistics of the sample like median, skewness, kurtosis, p1, P99, P5, P95, P10, P90, P25 and P75 are also displayed. It displays the mean and points -1sd, -2sd, -3sd, +1sd, +2sd, +3sd away from the mean.The maximum and minimum points are also displayed on the histogram. If you run the same line of command without the comma, it will not work and the Review window will show "variable frequency not found.Historaj produces a histogram that also displays some descriptive statistics in a table within the plot region of the histogram.
HISTOGRAM STATA FULL
For example, to make a frequency histogram with a title, the full command would become histogram variableX, frequency title(Histogram of VariableX) The comma tells Stata that what follows are options and not more variables.
Basic elements like titles are added by appending the sub-command, and then specifying the details in parentheses. In addition, you can do a number of things to customize your histogram, both obvious things such as titles and less obvious things such as specifying how wide each bar is or at what number the histogram should start. Thus to create a basic frequency histogram of variable X, you would type histogram, frequency. Other options (typed in place of frequency) are percent (which puts percent out of a hundred on the y-axis) or fraction (which displays the data as a decimalized proportion). For a standard frequency histogram, you can add the frequency option. The default histogram graphs density along the y-axis, which is not typically what people want from a histogram. The histogram command takes a variety of arguments, the most important being the variable you want, which comes next. The command to create a histogram is histogram. When you execute a command using the user interface, Stata will display the syntax in the Results window, so this can be a good way to get a feel for how you would do things via the Command window.īoth tables and histograms are great ways to get a good look at your data over all trends and leanings, and can be useful precursors to analysis.
If you are new to histograms in Stata, you might find it more intuitive to go to the Graphics menu and select Histogram. This is a good way to see all the options available and if you want a highly specific histogram, it may in fact be faster to specify your options in this manner.
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