Stata combine two variables

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WebApr 21, 2024 · In this video, we discuss how to convert a categorical string variable into a numerical variable in stata. We also see if we want to combine them into a sing... WebAug 15, 2024 · Stata: combine multiple variables into one variables stack combinations stata 32,451 Solution 1 From your example, which implies numeric variables and at most …

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WebFeb 11, 2024 · For a one-to-many or many-to-one match merge, use .merge 1:m or .merge m:1 ; see Merge two data sets in the many-to-one relationship in Stata . To merge two data sets in Stata, first sort each data set on the key variables upon which the merging will be based. Then, use the .merge command followed by a list of key variable (s) and data set (s). WebJul 31, 2024 · I am trying to "combine" two categorical variables in Stata (say var1 and var2) into a new (also categorical) variable (say res ). The example below illustrates what I am trying to achieve: var1 var2 res 1 1 A 1 2 A 2 1 A 3 3 B 4 2 A 5 4 D What this example does is to combine all categories of var1 and var2 that "overlap". contract of excambion

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WebApr 2, 2024 · #1 Combine two string variables into one, such that both a + b and b + a become ab 30 Mar 2024, 03:36 Hello, I am currently aiming to create an identification … WebI have two numeric variables. I want to combine them into one. I do not want their values added together. I have 970 obs in one variable and 270 obs in the other variable. I want … WebJan 10, 2024 · Notice that the above datasets have two common variables: country and year. For merging these two datasets, we need to use one-to-one method because the … contract of employment template free uk

Combine two string variables into one, such that both a - Statalist

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WebIn order to merge two datasets, we need a common variable (or a set of variables) called a ‘key’ variable present in both the master and using file. In this case, it is year. We can … WebAug 15, 2012 · As I don't have sufficient number of cases when I take into account my covariates, I now need to combine these four variables to create 1 variable; 0=no > diagnoses of hypertension, and 1=diagnoses of any type of hypertension (in any of the four variables). Some subjects might have multiple diagnoses. contract of enrollmentWebMay 27, 2011 · Step 3: Merge on every pair of key variables With three key variables, the possible pairs are (personid, date), (personid, division), and (division, date). We have … contract of exchange

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Stata combine two variables

The Stata Blog » Merging data, part 2: Multiple-key merges

WebApr 8, 2024 · We hoped to create one variable out of these by using the egen command but it doesn't seem to combine them correctly: egen total_interest = rowtotal (course_interest_1 course_interest_2 course_interest_3 course_interest_4 course_interest_5 course_interest_6 course_interest_7 course_interest_8 course_interest_9 course_interest_11), missing Webmeasured’as’a’numerical’categorical’variable,’Stata’will’not’be’able’to’recognize’the’ differencebetweenthosetwo,whichwill’leadtoinaccuratedata. Note: dataset has changed since last saved

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Web11K views 1 year ago In this video, we explained how to merge data in stata. There are two commands to merge data i.e. append and merge. Append is used when u want to add additional rows... WebAssume we have two measurements from the same subjects. The two variables ( x 1 and x 2) are measuring something similar, but not exactly the same thing. The variables (or combined variable, called x 12) will later be used as an explanatory variable ( X) of some other variable ( Y ).

WebMay 2, 2016 · Create a new variable (combining two variables) I have two separate variables country and city. For each country and city combination, I need to create a variable which … WebData > Combine datasets > Merge two datasets Description merge joins corresponding observations from the dataset currently in memory (called the master dataset) with those from ﬁlename.dta (called the using dataset), matching on one or more key variables. merge can perform match merges (one-to-one, one-to-many, many-to-one, and many-to-

WebSince I am a Stata beginner, I don't know how to import my data, but I just wanted some help to understand my mistake. ... Create comparison-of-means table with multiple variables … Web23Combining datasets You have two datasets that you wish to combine. Below, we will draw a dataset as a box where, in the box, the variables go across and the observations go …

WebApr 5, 2024 · You can merge on a varlist, namely one or more identifier variables. See the manual entry for examples. The first I found merge s on identifier and time, which is common in panel data. but there is nothing odd about two variables jointly identifying as in your case. It still sounds like 1:1 merge s. – Nick Cox yesterday Gotcha.

WebA common problem in data management is combining two or more variables with missing values to get a single variable with as many nonmissing values as possible. Typically, this … contract of eventWebJun 2, 2024 · 2 Answers Sorted by: 1 The missing values in the columns are treated as "undefined" and you can't do math on undefined values, so the result in gen amin_vaccination = amin_number + number_amin is also undefined as at least one of the values for each observation is undefined. Instead do: egen amin_vaccination = rowtotal (amin_number … contract of evilWebYes. you can combine the variables and test the relationship. the combination comes in the form of x 1 multiplied by x 2 etc. If you are doing regression, which is always linear in its basic... contract of exodiaWebOct 14, 2016 · Merge data: -merge- It is usually pretty straightforward to append data, however it sometimes gets a bit tricky when you need to combine data in a column-wise … contract of exclusive distributionWeb12, Number 2, pp. 345–346 Stata tip 109: How to combine variables with missing values Peter A. Lachenbruch Oregon State University (retired) Corvallis, OR [email protected] A common problem in data management is combining two or more variables with missing values to get a single variable with as many … contract of expectations children templateWebAug 14, 2015 · What I want to do is to combine multiple variables into one. My data looks like the following (simplified): ID a b c 1 x . . 2 y . . 3 . z . 4 . w . 5 . . u Now I want to generate a new variable d consisting of all values of variables a, b and c, such that d has no missing … contract of exclusivityWebFeb 7, 2024 · Stata opens only one dataset at a time. Therefore, you will quickly find that you need to combine datasets in order to analyze the information contained within. The two most frequently used commands for combining datasets are merge and append. See also: joinby merge Think of any tabular dataset as a spreadsheet. contract of expectations social services