#STATA COMMANDS CODE#

We cannot use the enter key to move part of our command to a new line since Stata considers the new line as a new command. This is an inconvenience that interrupts the smooth reading of a do file.

#STATA COMMANDS CODE#

Oftentimes, our line of code gets very long and we have to resort to scrolling left and right to read it entirely. Like double forward slash, they can be used at the beginning, middle or end of a line. sysuse auto /*, clear The clear option is commented out, as is this line. This commenting style can be used in the beginning, middle or end of a command or line. sysuse auto, clear The command above is part of the comment and will not be executed. *This is the first line of this comment. You can therefore comment out multiple lines of text or code as one comment. Not only that, this style of commenting also allows you to take your comment to a new line. A Forward Slash and an AsteriskДЄny text encased between a forward slash and asterisk will be treated as a comment. *This is a comment that can be entered through StataвЂ™s command box or the do file. Comments with double forward slash cannot be executed from the command box. sysuse auto, clear *This is an incorrectly written comment and will return an error.ДЄsterisk comments can be used interactively, which means they can be written directly in StataвЂ™s command box and displayed in the Result window. You cannot add them in front of a command like we used the double forward slash. AsteriskДЄsterisks provide limited commenting capability in that they only work if added at the very beginning of a line. The correct way to write the above is: sysuse auto, clear //This is a comment correctly added. The following is the wrong way to use the double forward slash: sysuse auto, clear//This is a comment incorrectly added. sysuse auto //, clearДЄlways add a space before the double forward slash, otherwise Stata treats them as part of the command and attempts to (unsuccessfully) execute them.

For example, in the following example, the option of clear is commented out and will not be executed. This can also be used to comment out actual Stata commands. A forward slash and an asterisk вЂ“ /* comment */ДЄnything written right after the double forward slash gets treated as a comment if it is in the same line as the forward slashes.They must be saved by clicking the File menu, then choose Save Graph.There are three ways to add comments in Stata: graph twoway - generates a two variable scatterplot.By the time you're done with this class, you'll know what that means. regress - fits a linear regression model of a dependent variable on a single predictor or set of predictors.Means option gets summary stats for each variable. correlate - displays the correlation matrix for a list of variables.By option gets statistics for subgroups.Д«y race: summarize rdg wrtg math, detail (note: race must be sorted first)

Detail option gets more statistics and percentiles. summarize - calculates summary statistics such as mean and standard deviation.

Summarize option gets summary stats for subgroups. tabulate - gets counts and percents of subgroups for 1 or 2 variables.generate - computes a new variable based on an expression.

The search command can be used to get a more detailed description of the return code. If you make a mistake with a Stata command, it may return an error message along with a return code. This allows you to find help on command statements and return codes which appear alongside of error messages.

search - searches Stata help for matching strings.