Reshape command stata
WebThis video introduces the reshape command in Stata. The command is useful when needing to change a dataset from wide format to long format. WebThe reshape command is inexplicably slow. Take a million observation dataset with variables id, year and x2001-x2010. ... Long back to wide might be more difficult, since it …
Reshape command stata
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WebOct 14, 2016 · Reshape from wide to long. The syntax should look like this in general: reshape long stub, i(i) j(j) In this case, 1) the stub should be inc, which is the variable to be … WebTitle stata.com reshape ... Because we did not specify sex in the command, Stata assumes that it is constant within the logical observation, here id. Wide and long data forms Think of the data as a collection of observations X ij, where i is the logical observation, or group
http://web.mit.edu/17.871/www/2014/using_merge_and_reshape2014.pdf WebAug 12, 2024 · Code: id survey qol01. where survey will take on the values 1 through 5. With that easy answer out of the way, for your more general problem, the reshape command …
WebFile > Import > Excel spreadsheet (*.xls, *.xlsx) > Browse. Choose your Excel file and also choose the right sheet from the dialogue box that opens. Make sure to check the “Import first row as variable names” option. Reshaping from wide to long is simple from here through the commands we used above. Websets. This handout reviews using the most valuable command for managing multiple data sets, the merge command. In addition, we are often interested in combining multiple observations from some unit of analysis (like countries or states or people) to create a panel data set. The reshape command helps to move between different organizations of ...
WebThe sreshape command, compared with Stata’s built-in reshape command, also turnsouttobespeedier. Aspeedupof8to31timesfaster,dependingontheapplication, is observed below for wide-to-long reshapes, or 2 to 13 times faster for long-to-wide reshapes, while obtaining identical results. Greater speedups can occur with sparse
WebJan 18, 2024 · The Stata reshape command can convert the data files between these two formats. Formats. The following example data contains two participants measured on two outcome variables (weight and calories), under three different time points. Long format. cruise parking bayonne new jerseyWebJan 30, 2024 · 1 Answer. If you use the option string teacher ids will be generated as string variables rather than missing. You can then use encode to create numeric values for the teacher_id variable. clear set obs 10 gen schid = _n gen m_i = 1 gen m_ii = 2 gen m_iii = 3 reshape long m_, i (schid) j (teacher_id) string encode teacher_id, gen (teacher_id2) build tesla coilWebThe basic command reshape is followed by which direction long or wide you want to reshape the data. Then comes the variables being reshaped. Next is the first part of the argument i ( [id variable]) followed by the dimension you're reshaping on j ( [incremental variable) While that seems very confusing, in practice it is fairly simple. build tesla canadaWebReshaping is a very computationally intensive command. If you are dealing with a large data set you will quickly find that using reshape can take an excessively long time or even break the current Stata session. There is an alternative way to manually code a reshape using expand and replace, that has the benefits of running much faster. It also ... build tesla cybertruckWebJul 21, 2016 · In Stata variable names are not to be considered or described as the "first row" of the data, although they will appear as headers in (e.g.) the Data Editor. Stata is not a spreadsheet application. The reshape command you mention requires that spo ovp fpo be renamed to p_spo p_ovp p_fpo before the reshape; this renaming does not follow the … cruise parking in galveston texas reviewsWeb1. Stata requires the variables over which we perform the reshape command to be num-bers rather than string. Thus, we start by assigning each unit—here countries—a unique ID number: (a) Create column for IDs (“unit id”). Insert “1” to the first observation of Sweden. build teso ddWebDec 24, 2024 · Using example data from the World Bank we show how to transform a "wide" format panel to a "long" format panel in Stata using the "reshape" command.Link to "... build terraces