What does Tsfill do Stata?
What does Tsfill do Stata?
From the Stata manual, the description of tsfill, full is as follows: tsfill is used after tsset to fill in gaps in time-series data and gaps in panel data with new observations, which contain missing values.
What does expand command do in Stata?
expand replaces each observation in the dataset with n copies of the observation, where n is equal to the required expression rounded to the nearest integer. If the expression is less than 1 or equal to missing, it is interpreted as if it were 1, and the observation is retained but not duplicated.
What is Joinby Stata?
joinby — Form all pairwise combinations within groups 5 The x1 variable is in both datasets. Values for this variable in the joined dataset are the values from parent. dta—the dataset in memory when we issued the joinby command.
What does Ld mean in Stata?
lagged difference variable
referring to it I wrote the term as lagged difference variable. I attached the file describing the format of the variable.
What does Egen mean in Stata?
The Stata command egen, which stands for extended generation, is used to create variables that require some additional function in order to be generated. Examples of these function include taking the mean, discretizing a continuous variable, and counting how many from a set of variables have missing values.
How does encode work in Stata?
encode creates a new variable named newvar based on the string variable varname, creating, adding to, or just using (as necessary) the value label newvar or, if specified, name.
When do you need to use tsfill in Stata?
tsfill is used to fill in gaps in time-series data and gaps in panel data with new observations, which contain missing values. tsfill is not needed to obtain correct lags, leads, and differences when gaps exist in a series because Stata’s time-series operators handle gaps automatically. Quick start
When to use tsfill in a data set?
tsfill is used after tsset or xtset to fill gaps in time-series data and gaps in panel data with new observations. Each new observation contains the appropriate values of the time variable, timevar, and, when specified, the panel variable, panelvar, and missing values for all other variables in the dataset.
How can I download the carryforward in Stata?
You can download the ” carryforward ” via “search carryforward” in Stata (see How can I use the search command to search for programs and get additional help? for more information about using search) and following the appropriate link.