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Re: st: Re: Monte Carlo Simulation, help!
"loc not found" sounds weird, the real trouble is that you put a "%" sign in
the "sigma" specification. Just put 0.027 there...
HTH
Martin
_______________________
----- Original Message -----
From: "STATA Dndee" <[email protected]>
To: <[email protected]>
Sent: Sunday, January 18, 2009 4:50 PM
Subject: Re: st: Re: Monte Carlo Simulation, help!
Hi
I have tried the following commande:
simulate mean=r(mean) var=r(Var), reps(10000): lnsim, obs(100)
from STATA help and for Inst. F
my command was:
simulate mean=r(mean) var=r(Var), reps(10000): lnsim, obs(273) mu(71)
sigma(2.7%)
and I got the following error:
loc not found
an error occurred when simulate executed lnsim
r(111);
When it resolved I should run the analysis for all INSs and the mean?
the SE in the floowing table was SD.
I have copied the table again.
Many thanks for any comment
Bests
+-------------------------------------------------------+
| inst cases total outcome lci uci sd |
|-------------------------------------------------------|
1. | f 71 273 26.01% 20.8% 31.2% 2.7% |
2. | e 259 809 32.01% 28.8% 35.2% 1.6% |
3. | c 121 345 35.07% 30.0% 40.1% 2.6% |
4. | d 262 726 36.09% 32.6% 39.6% 1.8% |
5. | b 192 480 40.00% 35.6% 44.4% 2.2% |
|-------------------------------------------------------|
6. | a 120 204 58.82% 52.1% 65.6% 3.4% |
7. | mean 713 2153 33.12% 31.1% 35.1% 1.0% |
--- On Sun, 18/1/09, STATA Dndee <[email protected]> wrote:
From: STATA Dndee <[email protected]>
Subject: Re: st: Re: Monte Carlo Simulation, help!
To: [email protected]
Date: Sunday, 18 January, 2009, 1:20 PM
Thanks for your kind and quick reply Martin
I tried it before but couldn't understand the commands
in Help file. I arranged the data with the CIs.
+-------------------------------------------------------+
| inst cases total outcome lci uci
se |
|-------------------------------------------------------|
1. | f 71 273 26.01% 20.8% 31.2%
2.7% |
2. | e 259 809 32.01% 28.8% 35.2%
1.6% |
3. | c 121 345 35.07% 30.0% 40.1%
2.6% |
4. | d 262 726 36.09% 32.6% 39.6%
1.8% |
5. | b 192 480 40.00% 35.6% 44.4%
2.2% |
|
6. | a 120 204 58.82% 52.1% 65.6%
3.4% |
7. | mean 713 2153 33.12% 31.1% 35.1%
1.0% |
+-------------------------------------------------------+
Regards
--- On Sun, 18/1/09, Martin Weiss
<[email protected]> wrote:
> From: Martin Weiss <[email protected]>
> Subject: st: Re: Monte Carlo Simulation, help!
> To: [email protected]
> Date: Sunday, 18 January, 2009, 11:49 AM
> A very warm welcome to you in the Stata community,
good to
> see you :-) Try -help simulate- for a start!
>
> HTH
> Martin
> _______________________
> ----- Original Message ----- From: "STATA
Dndee"
> <[email protected]>
> To: <[email protected]>
> Sent: Sunday, January 18, 2009 12:46 PM
> Subject: st: Monte Carlo Simulation, help!
>
>
> > Hi
> > I want to rank institutions for and outcome given
in
> outcome% based on Monte Carlo simulation and produce a
table
> like table 2 in
> http://plus.maths.org/issue46/risk/index.html. The
method
> is also described by Spiegelhalter in BMJ, 1998,
> 316(1701-1705).
> > I am a beginner in STATA. Could anyone help me in
> performing the analysis in STATA? I need the commands
and
> number of iterations. Number of institutions is more
than
> in the sample.
> >
> > Any help will be really appreciated.
> > Kind regards
> >
> > Inst. cases total outcome%
> > f 71 273 26.01%
> > e 259 809 32.01%
> > c 121 345 35.07%
> > d 262 726 36.09%
> > mean 713 2153 33.12%
> > b 192 480 40.00%
> > a 120 204 58.82%
> >
> >
> >
> >
> > *
> > * For searches and help try:
> > * http://www.stata.com/help.cgi?search
> > * http://www.stata.com/support/statalist/faq
> > * http://www.ats.ucla.edu/stat/stata/
> >
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/