1. [PDF] Drop variables or observations - Title Description Quick start Menu
2 dec 2022 · drop eliminates variables or observations from the data in memory. keep works the same way as drop, except that you specify the variables or ...
2. Remove cases or variables from datasets in Stata - Stata Help
Note: This command is not reversible. One you have dropped a variable, or only kept a certain set of variables, it's gone. It is recommended that before you ...
Sometimes, especially in instances where you are acquiring the data set from a third party or doing new analyses on old data, extraneous cases or variables can cause unnecessary clutter. Stata makes it very easy to drop such clutter. This can also be useful if you accidentally make a variable you don't want to. In either case, the basic command is simply drop
3. [PDF] vl drop - Stata
vl drop (varlist) removes variables from all variable lists. vl clear deletes all variable lists and removes all traces of the vl system. For an introduction to ...
4. Drop the values of a variable with if condition - Statalist
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Hello everyone, I have a variable named "diversity" (and a bunch of other variables) and I would like to drop the values of the variable
5. [PDF] st dropvar() — Drop variables or observations - Stata
vars is a row vector that may contain either variable names or variable indices. st dropvar(.) drops all variables and observations. st dropobsin() and st ...
6. [PDF] Drop variables or observations - Stata
6 apr 2013 · drop eliminates variables or observations from the data in memory. keep works the same way as drop, except that you specify the variables or ...
7. Stata Class Notes: Managing Data - OARC Stats - UCLA
Use keep and drop with variable names to remove variables from the dataset. Suppose that our data file had many, many variables, say 2000 variables, but we ...
We begin with the dataset we created in the last section.
8. Stata Guide: Drop/Keep
Drop/Keep ... The same commands are used for dropping / keeping variables or cases. ... will delete the variables listed after "drop" from your data set. Using " ...
The same commands are used for dropping / keeping variables or cases.
9. FAQ: Dropping spells of missing values - Stata
How can I drop spells of missing values at the beginning and end of panel data? ... variable. So, a panel might look like id time ... © Copyright 1996–2024 ...
How can I drop spells of missing values at the beginning and end of panel data?
10. Cleaning data in STATA - Map and Data Library - University of Toronto
5 mei 2017 · Dropping variables is very straightforward; simply use the “drop” command. Looking at the data from CCHS, the variable SLP_01 (Number of hours ...
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11. Dropping Rows in Stata - BridgeText
In this blog entry, we'll show you how to use Stata's drop command to eliminate unwanted rows from a given dataset. ... variable subj "Subject #" gen q1_a = ...
Dropping unwanted rows can simplify data analysis. In this blog entry,we’ll show you how to use Stata’s drop command to eliminate unwanted rows from a given dataset.
12. Missing data in Stata - Data at Reed - Reed College
Missing data in Stata · drop if important_variable == "". Drop cases missing numeric data (for variable "important_numeric_variable") · drop if important_variable ...
Note: When working with missing data, you need to consider why that data is missing. In survey data, missing values may mean that the surveyor did not ask the question, that the respondent did not answer the question, or that the data are truly missing. (Some datasets have these three cases coded differently; others lump them together. Check your metadata/codebook to make sure you know what you are working with!) For numeric data, keep in mind that missing data are not the same as a value of zero. (This may seem obvious, but I have had many students nonchalantly say "oh, so we can just replace those with zeros..." Nope.) Consider this in the context of gas mileage. MPG = 0 is very different from MPG = "I'm not sure."
13. Re: st: Removing variables if missing a particular observation - Stata
11 apr 2013 · If as you say 2004m3 is the first observation foreach var of varlist _all { if missing(`var'[1]) drop `var' } should also work.
14. [Stata] Data cleaning 1: Managing variables (rename, order, keep, and ...
Dropping variables in the dataset. Stata * drop command: drops the variable from the dataset drop var_name * keep command: drops all variables except for the ...
First, you can see the list of variables in the data in the variable browser on the upper right side of STATA screen. The command codebook, compact also return the list of variable, its # of observ…
15. Introduction to Stata: Creating and Changing Variables
27 mei 2020 · ... remove them first (like those dollar signs and commas) or if the variable isn't really just numbers after all. This data set doesn't have ...
This is part six of Introduction to Stata. If you're new to Stata we highly recommend starting from the beginning.
16. Remove blanks from string variables in Stata - StataTex Blog
9 feb 2021 · * Removes blanks at beginning and end replace state=trim(state) * Removes blanks at beginning only replace state=ltrim(state) * Removes blanks ...
Identify and remove blank space in Stata’s string variables
