help for ^cistat^

Confidence intervals in matrix form -----------------------------------

^cistat^ varname [^if^ exp] [^in^ range] [weight] [ ^, by(^byvarname^) t^otal ci_options ^m^atname^(^matrix_name^)^ tabdisp_options ]

^cistat^ varlist [^if^ exp] [^in^ range] [weight] [ ^,^ ci_options ^m^atname^(^matrix_name^)^ tabdisp_options ]

Description -----------

^cistat^ calculates and displays for the groups or variables specified the number of observations, mean, standard error of the mean and confidence interval for the mean. The results may be stored in a matrix for further use.

Options -------

ci_options are options of ^ci^ other than ^by( )^ and ^total^. See help for @ci@.

^by(^byvarname^)^ specifies that calculations are to be performed for groups defined by byvarname. ^total^ specifies that a calculation is also to be performed for all observations. Note that ^by( )^ is allowed only with a single variable and that ^total^ is allowed only with ^by( )^.

tabdisp_options are options of ^tabdisp^. Note that the defaults used are ^missing format(%9.3f)^.

^matname(^matrix_name^)^ saves the matrix produced in the matrix named. The matrix will have column names ^n^, ^mean^, ^se^, ^llimit^ and ^ulimit^, except that ^exposure^ will be used instead of ^n^ if the ^exposure( )^ option is invoked.

Examples --------

. ^cistat turn displ gratio, m(ci)^ . ^svmat ci, n(col)^

. ^cistat mpg, by(foreign) total^

Author ------

Nicholas J. Cox, University of Durham, U.K. n.j.cox@@durham.ac.uk

Also see --------

On-line: help for @ci@, @svmat@ Manual: [R] summarize