Line for the server...
Well, the -h tabstatmat- advises you: "In particular, a call that requests
multiple statistics for multiple groups and multiple variables is not
suitable. tabstatmat cannot be smart about detecting such calls and
labelling rows or columns correctly."
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of User Stata
Sent: Tuesday, November 25, 2008 7:32 AM
To: [email protected]
Subject: st: tabstatmat: are there difference between lab version vs non-lab
versions? or a bug?
Dear Users,
my students is using Stata 10.0 but find that tabstatmat cannot
work here properly
please try the following program to test it
*program 1:
clear
set obs 100
forval i = 1(1) 2 {
gen x`i' = uniform()
}
gen y = uniform()>0.3
tabstat x1-x2, by(y) s(N mean sd ) c(s) long save
tabstatmat a
the output is as following:
. tabstatmat a
a[6,3]
N mean sd
0 24 .52799754 .31000402
1 24 .56384267 .27788796
Total 76 .48501671 .30646846
Total 76 .51454554 .30574073
Total 100 .49533211 .30630202
Total 100 .52637685 .29867098
the program here is that the last four rows are all lebeled as Total
with the following program, you will find more serious problems:
clear
set obs 100
forval i = 1(1) 4 {
gen x`i' = uniform()
}
gen y = uniform()>0.3
tabstat x1-x4, by(y) s(N mean sd ) c(s) long save
tabstatmat a
clear
set obs 100
forval i = 1(1) 4 {
gen x`i' = uniform()
}
gen y = uniform()>0.3
tabstat x1-x4, by(y) s(N mean sd ) c(s) long save
tabstatmat a
. tabstatmat a
conformability error
r(503);
end of do-file
r(503);
actually i find that when there are more than 4 variables, this error
will always appear
in another of my program, i even find another error message:
. tabstat emp RD2 RND_D np2 np_d new_process if SOE & year==2002,
by(sector) save
Summary statistics: mean
by categories of: sector
sector | employee RD2 RND_D np2 np_d
new_pr~s
-----------------+----------------------------------------------------------
--
Garment & leathe | 4.715734 .0016361 .1397849 .0487634 .1182796
.2043011
Electronic equip | 5.12713 .0170868 .5517241 .1807552 .4655172
.6034483
Electronic parts | 5.0808 .0145687 .4363636 .1641173 .5
.4818182
Auto & auto part | 5.595137 .0107206 .4388489 .1765173 .5035971
.4460432
Food processing | 5.108645 .0016465 .3 .124515 .4
.4
Chemical product | 5.082825 .0024898 .2258065 .0319387 .2580645
.2580645
Metallurgical pr | 4.911888 .0179259 .2597403 .0970013 .2987013
.2727273
Transportation e | 3.84033 .0000513 .0833333 .0125 .0833333
.0833333
-----------------+----------------------------------------------------------
--
Total | 5.104794 .0106054 .3481481 .1272354 .3759259
.3833333
----------------------------------------------------------------------------
--
. tabstatmat SEO_sectors
Metallurgicalproducts(manuf: operator invalid
r(198);
end of do-file
r(198);
--
Chuntao Li
Chinese Academy of Finance and Development
Central University of Finance and Economics
Beijing, China
*
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*
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