.- help for ^xttrans2^ .- Tabulate xt data ---------------- ^xttab^ varname [^if^ exp] [^,^ ^i(^varname^)^ ] ^xttrans2^ varname [^if^ exp] [^,^ ^i(^varname^)^ ^t(^varname^)^ ^f^req ^prob^ tabulate_options ] Description ----------- If you have not read help for @xt@, please do so now. ^xttab^, a generalization of @tabulate@, performs one-way tabulations and decom- poses counts into between and within components in cross-sectional time-series (xt) data. ^xttab^ is part of official Stata and untouched by the author. ^xttrans2^, another generalization of @tabulate@, reports transition probabilities (the change in a single categorical variable over time). It differs from official Stata's ^xttrans^ only in detail: (a) options of ^tabulate^ other than ^row^ and ^freq^ also may be specified; (b) a matrix of probabilities may be saved; (c) it may not be called ^by^ varlist. Options ------- ^i(^varname^)^ specifies the variable name corresponding to i; see help @xt@. ^t(^varname^)^ specifies the variable name corresponding to t; see help @xt@. ^freq^, allowed with ^xttrans2^ only, specifies that frequencies as well as transi- tion probabilities are to be displayed. ^prob^ specifies that the matrix produced contain probabilities rather than frequencies. tabulate_options are options of ^tabulate^ other than ^row^ and ^freq^. For example, it may be useful to use ^matcell^ to save the frequencies to a matrix. Examples -------- . ^iis id^ . ^tis year^ . ^xttab race^ . ^xttab married^ . ^xttrans2 married, matcell(T)^ Author ------ Nicholas J. Cox, University of Durham, U.K. n.j.cox@@durham.ac.uk Also see -------- Manual: ^[R] xttab^ On-line: help for @xt@, @xtdes@, @xtsum@