tabstat.ado

是一个经济学管理应用软件 很难找的 但是经济学学生又必须用到

				di as txt _col(6) `"by categories of: `by' `bylabel'"'
			}
		}
		di

		* loop over all nsblock blocks of statistics

		local is2 0
		forvalues isblock = 1/`nsblock' {

			* is1..is2 are indices of statistics in a block
			local is1 = `is2' + 1
			local is2 = min(`nstats', `is1'+`neblock'-1)

			* display header
			if "`by'" != "" {
				local byname = abbrev("`by'",`byw')
				di as txt "{`byalign' `byw':`byname'} {...}"
			}
			if "`descr'" != "" {
				di as txt "{ralign `varwidth':variable} {...}"
			}
			di as txt "{c |}" _c
			forvalues is = `is1'/`is2' {
				di as txt %`colwidth's "`name`is''" _c
			}
			local ndash = `colwidth'*(`is2'-`is1'+1)
			di as txt _n "{hline `lleft'}{c +}{hline `ndash'}"

			* loop over the categories of -by- (1..nby) and -total- (nby+1)
			local nbyt = `nby' + ("`total'" == "")
			forvalues iby = 1/`nbyt'{
				forvalues i = 1/`nvars' {
					if "`by'" != "" {
						if `i' == 1 {
							local lab = substr(`"`lab`iby''"'0, 1,`byw')
							if `"`lab'"' != "Total" {
								capture local val_lab : value label `by'
								if "`val_lab'" == "" {
									local type : type `by'
									local yes_str = index("`type'", "str")
									if `yes_str' == 0 {
										capture local for : format `by'
										capture local if_date_for = index("`for'", "%d")
										capture local if_time_for = index("`for'", "%t")
										if `if_date_for' > 0 | `if_time_for' > 0 {
											local date_for : display `for' `lab'
											di in txt `"{`byalign' `byw':`date_for'} {...}"'
										}
										else {
											di in txt `"{`byalign' `byw':`lab'} {...}"'
										}

									}
									else {
										di in txt `"{`byalign' `byw':`lab'} {...}"'
									}
								}
								else {
									di in txt `"{`byalign' `byw':`lab'} {...}"'
								}

							}
							else {
								di in txt `"{`byalign' `byw':`lab'} {...}"'
							}
						}
						else {
							di "{space `byw'} {...}"
						}
					}
					if "`descr'" != "" {
						local avn = abbrev("`var`i''",`varwidth')
						di as txt "{ralign `varwidth':`avn'} {...}"
					}
					di as txt "{c |}{...}"
					forvalues is = `is1'/`is2' {
						local s : display `fmt`i'' `Stat`iby''[`is',`i']
						di as res %`colwidth's "`s'" _c
					}
					di
				}
				if (`iby' >= `nbyt') {
					di as txt "{hline `lleft'}{c BT}{hline `ndash'}"
				}
				else if ("`sepline'" != "") | ((`iby'+1 == `nbyt') & ("`total'" == "")) {
					di as txt "{hline `lleft'}{c +}{hline `ndash'}"
				}
			}

			if `isblock' < `nsblock' {
				display
			}
		} /* isblock */
	}
	else {
		* display the results: horizontal = variables (block wise)

		if "`descr'" == "" {
			di as txt _n `"Summary statistics:`names'"'
			if "`by'" != "" {
				local bylabel : var label `by'
				if `"`bylabel'"' != "" {
					local bylabel `"(`bylabel')"'
				}
				di as txt `"  by categories of: `by' `bylabel'"'
			}
		}
		di

		* loop over all nvblock blocks of variables

		local i2 0
		forvalues iblock = 1/`nvblock' {

			* i1..i2 are indices of variables in a block
			local i1 = `i2' + 1
			local i2 = min(`nvars', `i1'+`neblock'-1)

			* display header
			if "`by'" != "" {
				di as txt "{`byalign' `byw':`by'} {...}"
			}
			if "`descr'" != "" {
				di as txt "   stats {...}"
			}
			di as txt "{c |}{...}"
			forvalues i = `i1'/`i2' {
				* here vars are abbreviated to 8 chars
				di as txt %`colwidth's abbrev("`var`i''",8) _c
			}
			local ndash = (`ndigit'+1)*(`i2'-`i1'+1)
			di as txt _n "{hline `lleft'}{c +}{hline `ndash'}"

			* loop over the categories of -by- (1..nby) and -total- (nby+1)
			local nbyt = `nby' + ("`total'" == "")
			forvalues iby = 1/`nbyt'{
				forvalues is = 1/`nstats' {
					if "`by'" != "" {
						if `is' == 1 {
							local lab = substr(`"`lab`iby''"'0, 1, `byw')
							di as txt `"{`byalign' `byw':`lab'} {...}"'
						}
						else {
							di as txt "{space `byw'} {...}"
						}
					}
					if "`descr'" != "" {
						* names of statistics are at most 8 chars
						di as txt `"{ralign 8:`name`is''} {...}"'
					}
					di as txt "{c |}{...}"
					forvalues i = `i1'/`i2' {
						local s : display `fmt`i'' `Stat`iby''[`is',`i']
						di as res %`colwidth's "`s'" _c
					}
					di
				}
				if (`iby' >= `nbyt') {
					di as txt "{hline `lleft'}{c BT}{hline `ndash'}"
				}
				else if ("`sepline'" != "") | ((`iby'+1 == `nbyt') & ("`total'" == "")) {
					di as txt "{hline `lleft'}{c +}{hline `ndash'}"
				}
			} /* forvalues iby */

			if `iblock' < `nvblock' {
				display
			}
		} /* forvalues iblock */
	}

	* save results (mainly for certification)
	* ---------------------------------------

	if "`save'" != "" {
		if "`total'" == "" {
			local iby = `nby'+1
			if _caller() < 9 {
				return matrix StatTot `Stat`iby''
			}
			else {
				return matrix StatTotal `Stat`iby''
			}
		}

		if "`by'" == "" {
			exit
		}
		forvalues iby = 1/`nby' {
			return matrix Stat`iby' `Stat`iby''
			return local  name`iby' `"`lab`iby''"'
		}
	}
end

* ---------------------------------------------------------------------------
* subroutines
* ---------------------------------------------------------------------------

/* Stats str
   processes the contents() option. It returns in
     r(names)   -- names of statistics, separated by blanks
     r(expr)    -- r() expressions for statistics, separated by blanks
     r(summopt) -- option for summarize command (meanonly, detail)

   note: if you add statistics, ensure that the name of the statistic
   is at most 8 chars long.
*/
program define Stats, rclass
	if `"`0'"' == "" {
		local opt "mean"
	}
	else {
		local opt `"`0'"'
	}

	* ensure that order of requested statistics is preserved
	* invoke syntax for each word in input
	local class 0
	foreach st of local opt {
		local 0 = lower(`", `st'"')

		capt syntax [, n MEan sd Variance SUm COunt MIn MAx Range SKewness Kurtosis /*
			*/  SDMean SEMean p1 p5 p10 p25 p50 p75 p90 p95 p99 iqr q MEDian CV ]
		if _rc {
			di in err `"unknown statistic: `st'"'
			exit 198
		}

		if "`median'" != "" {
			local p50 p50
		}
		if "`count'" != "" {
			local n n
		}

		* class 1 : available via -summarize, meanonly-

		* summarize.r(N) returns #obs (note capitalization)
		if "`n'" != "" {
			local n N
		}
		local s "`n'`min'`mean'`max'`sum'"
		if "`s'" != "" {
			local names "`names' `s'"
			local expr  "`expr' r(`s')"
			local class = max(`class',1)
		}
		if "`range'" != "" {
			local names "`names' range"
			local expr  "`expr' r(max)-r(min)"
			local class = max(`class',1)
		}

		* class 2 : available via -summarize-

		if "`sd'" != "" {
			local names "`names' sd"
			local expr  "`expr' r(sd)"
			local class = max(`class',2)
		}
		if "`sdmean'" != "" | "`semean'"!="" {
			local names "`names' se(mean)"
			local expr  "`expr' r(sd)/sqrt(r(N))"
			local class = max(`class',2)
		}
		if "`variance'" != "" {
			local names "`names' variance"
			local expr  "`expr' r(Var)"
			local class = max(`class',2)
		}
		if "`cv'" != "" {
			local names "`names' cv"
			local expr  "`expr' (r(sd)/r(mean))"
			local class = max(`class',2)
		}

		* class 3 : available via -detail-

		local s "`skewness'`kurtosis'`p1'`p5'`p10'`p25'`p50'`p75'`p90'`p95'`p99'"
		if "`s'" != "" {
			local names "`names' `s'"
			local expr  "`expr' r(`s')"
			local class = max(`class',3)
		}
		if "`iqr'" != "" {
			local names "`names' iqr"
			local expr  "`expr' r(p75)-r(p25)"
			local class = max(`class',3)
		}
		if "`q'" != "" {
			local names "`names' p25 p50 p75"
			local expr  "`expr' r(p25) r(p50) r(p75)"
			local class = max(`class',3)
		}
	}

	return local names `names'
	return local expr  `expr'
	if `class' == 1 {
		return local summopt "meanonly"
	}
	else if `class' == 3 {
		return local summopt "detail"
	}
end
exit