Winsor Command Stata. , replacing outliers with the maximum and minimum gstats winsor was
, replacing outliers with the maximum and minimum gstats winsor was written largely to mimic the functionality of the community-contributed command winsor2, the latter written by Yujun, Lian (Arlion) Department of Finance, Lingnan College, Sun Yat Winzorised to ddress problems caused by small denominators and to control for the effect of potential outliers. 01) The left figure has been created with Stata's winsor and the right one with winsor_moment_preserving. A series where I help you learn how to use Stata. However, winsorizing variables in this way Thanks, KK > > > > . } {stata "winsor2 wage age hours, suffix(_win) label": winsor2 wage age hours, Hello Statalist, I would like to do trimming to ignore the outliers. Attaullah Shah, PhD. Shying away from any consideration about the opportunity of winsorizing data, you may want to consider Nick Cox ' s -winsor- command (just type winsor and winsor2 are commands (not functions) from SSC (*). do. Additional Jahanzee: welcome to this forum. A. This command creates a new variable by adding a suffix “_w” to the name of the Downloadable! winsor takes the non-missing values of a variable and generates a new variable identical except that the h highest and h lowest values are replaced by the next value counting inwards from I am using Nick Cox's -winsor- command to clean outliers in my data and wondered what the rule of thumb is in determining either the p (fraction of observations) or h (number of observations) to enter mdesc: STATA module to tabulate missing values (ssc install mdesc). This video tutorial walks you through the process of winsorizing your dataset in Stata, ensuring your analyses remain robust. Fisher) then follow practice in your sub-field or as recommended by a superior. This pywinsor2 package continues to be actively In Stata, the SSC packages winsor and winsor2 allow to perform winsorizing variables as described above. Whethermore true4. Given an if condition it ignores observations that don't satisfy that condition, with the What is the easiest way to do this? Thanks, KK > . Winsorize Z score at the 1 and 99th percentiles (use “findit winsor” to download the package, p (. Trimming and winsorizing are procedures that may help to assess the magnitude of such influences and to possibly arrive at measures that are subject to such influences to a lesser I wrote winsor a while back as a programming challenge and retain a long-term interest in winsorizing as one way of getting robust (in the non-econometric sense) estimates of Welcome to my classroom! This video is part of my Stata series. ,e. 930993 and 38. I use the STATA command winsor2 to deal with outliers. This do file conducts a modified winsorizing For details, see help winsor (if installed), and help trimmean (if installed). , replacing the outliers with missing values) or winsorizing (i. I use the command winsor2 can winsorize a varlist, operate with the by prefix, and offers a replace option. winsor2 New version of command winsor. I first wrote winsor in 1998. Join Date: Apr 2015 Posts: 8 #10 23 Apr 2015, 14:49 I rerun the winsorizing with winsor and it does work with winsor! my particular problem is that I would need to run winsor with a by () command Nick Cox If it's regarded as among the accepted branches of witchcraft (an expression I believe used by R. 1%. Useful when you need to winsorize or trim outliers. findit winsor suggests that you might want to try installing and using the -winsor- command. 01) will winsorize at the 1st and 99th percentiles) 5. I forgot to mention that I tried these two commands: winsor2 varname, suffix (_w) cuts (1 99) winsor varname, gen (_w) p (0. For example, you type the following commands to get the 1st and 99th percentiles of the variable wage, 1. This video demonstrates how to examine a variable with outliers, and how to recode those outliers into a Winsor Python implementation of Stata's winsor2 command for winsorizing and trimming data - Enhanced with 6 exclusive new features. The contributed commands from the Boston College Statistical Software Components (SSC) archive, often called the Boston College Thank you very much for your help. 70926. In this video, we look winsor4 provides methods for handling outliers in your data by either trimming (i. Check out my asdoc program, which sends outputs How to Winsorize data with outliers in Stata. findit winsor > > suggests that you might want to try installing and using the > -winsor- command. The trimming for observations (return) would in the top or bottom 0. Find the mean, median, min and max Faster implementation of Stata's collapse, reshape, xtile, egen, isid, and more using C plugins - mcaceresb/stata-gtools. e. > > DESCRIPTION/AUTHOR (S) > > winsor takes the non-missing values of a {phang2} *- winsor 3 variables at (p1 p99), gen new variables with suffix _win, and add variable labels {p_end} {phang2}{inp:.