L                       a function to take lags and leads with panel
                        data
addobs                  add observations to the data set
assert_loaded           assert a dataset is loaded in genvar and error
                        otherwise
builddata               creates a dataset of a given number of
                        observations
capture                 captures an expression, returning TRUE if there
                        was an error and FALSE otherwise
clear                   clears the dataset in memory
collapse                collapses a data set by variables using
                        arbitrary aggregation functions
count                   Counts how many observations (optionally,
                        satisfying a condition)
describe                lists the names of the variables in the dataset
destring                convert a variable with string type into a
                        numeric value
do                      Executes R code on the dataset
dropif                  drops rows from the dataset
dropvar                 drops variables in varlist format from the
                        dataset
estimates_get           display estimation results
estimates_restore       restore 'genvar' estimates
estimates_save          save 'genvar' estimates
estimates_store         store 'genvar' estimates
estimates_use           loads 'genvar' estimates from file
fillin                  Fully rectangularize a dataset
forval                  Execute code in the datasets environment for
                        all values of a vector, replacing a macro with
                        the value in each iteration
forvar                  apply a function to each of a list of variables
gen                     generates a new variable that is a
                        transformation of existing variables in the
                        dataset or replaces one
getdata                 exports data frame from genvar environment to R
                        environment
gvmerge                 merge two datasets
gvplot                  convenience interface to R's 'plot' command
headdata                get first few observations
is_loaded               a command to determine whether data is loaded
keepif                  keeps some rows in the dataset and drops the
                        rest
keepvar                 keeps some variables in the dataset and drops
                        the others
listdata                lists datasets currently in memory
listif                  prints the part of the dataset that satisfies
                        certain conditions
logit                   estimate a logistic regression
namedata                names a data set so that it can be restored by
                        that name later on
pred                    gets fitted values from a genvar regression
                        object
preserve                preserve a data set before modification
probit                  estimate a probit regression
reg                     regress y on x with robust standard errors,
                        clustered standard errors, HAC standard errors,
                        panel fixed effects, etc
rename                  renames variables in the dataset
restore                 restore a dataset from a previous preserve to
                        be currently used
savedata                saves data to a CSV or RDS file
shape                   reshapes a data set from wide to long or from
                        long to wide formats
structure_varlist       creates a formula object from a varlist, mostly
                        for internal use.
subset.varlist          generate a varlist that is a subset of another
summarize               summarize a variable list, giving basic
                        descriptive statistics
switchdata              switches data sets among the datasets you have
                        in memory
taildata                get last few observations
tostring                convert a variable of another type into a
                        string variable
use                     uses a dataset, marking it as the active
                        dataset
xtset                   prepares a panel dataset for lag operations
