Stata is fast

On an 2.8 GHz Pentium 4 running Windows XP,

• 0.022 seconds: Stata sorts 10,000 observations.
• 0.130 seconds: Stata reports summary statistics on 25 variables.
• 0.050 seconds: Stata runs a linear regression (10 covariates).
• 0.088 seconds: Stata runs a logistic regression (10 covariates).
• 0.605 seconds: Stata runs a stcox regression (10 covariates).

Here are some more times, in seconds:

	1,000 obs	10,000 obs	50,000 obs	100,000 obs	200,000 obs
sort 25-variable dataset on 3 keys	<.000	.022	.120	.257	.562
summary statistics, 25 variables	.020	.130	.572	1.122	2.255
linear regr., 10 covariates	.020	.050	.177	.338	.650
logistic regr., 10 covariates	.022	.088	.397	.650	1.288
stcox regression, 10 covariates	.085	.605	3.203	6.532	11.972

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