Describe
produces a summary of the dataset in memory or of the data stored in a stata-format dataset
Summarize
gives summary statistics
Tabulate
creates a table listing the number of observation having each different value of the variable
Sort
arranges the observations of the current data into ascending order based on the values of the variables in the variable list.
Rename
it renames the variable
Label
creates a label for the variable to describe what it is
Label define
...
Label values
...
Order
Reorder variables in the dataset
Generate
Creates or changes the content of a variable
Replace
for replacing the values of an existing variable
List
lists values of a variable
Keep
...
Drop
eliminates variables or observation from the data in memory
Duplicates
reports, displays, lists, tags or drops duplicate observations, depending on the subcommand specified
Correlate
displays the correlation matrix or covariance matrix for a group of variables
Regress
...
Probit
fits a maximum likelihood probit model
If
If the result is true, the commands inside the braces are executed. If the result is false, those statements are ignored, and the statement following the else is executed.
By
repeats the command for each group of observations for which the values of the variables in varlist are the same.
Clear
removes data and value labels from memory.
Recode
changes the values of numeric variables according to the rules specified.
Merge
used to combine multiple data sets
Append
adds additional data sets
Scatter
creates a scatterplot of the data
CI
creates a confidence interval for the mean of the variable
ttest
test the hypothesis that the mean of a variable is equal to some number
Gsort
arranges observations to be in ascending or descending order of the specified variables and so differs from sort in that sort produces ascending-order arrangements only
Egen
generates a variable but works across all observations