simul ants with no ties [Nonparametrics]
Dear Helmut!
Yeah, but ... without ties.
10 000 sims each with round(,5) in the code and only wilcox.exact():
Each run (10 000 sims) only approx. 100 s!
The mean seems very close to your expectation
.
What I'm very curious of is that scatter between the runs. Seems that one has to simulate at least 100 000 or more datasets to get a reliable coverage.
To much beer in case of coin:wilcox_exac()
.
BTW: with round to five decimals I have observed anyhow up to 10 sets with ties among the 10 000 sims.
❝ Yep. For n1=n2=10 I would expect 0.9108
...
Yeah, but ... without ties.
10 000 sims each with round(,5) in the code and only wilcox.exact():
run 1 0.9096
run 2 0.9076
run 3 0.9125
run 4 0.9104
run 5 0.9138
-------------
mean 0.91078
Each run (10 000 sims) only approx. 100 s!
The mean seems very close to your expectation

---[nitpicking]---------------------------------
> 1-2*pwilcox(max(1,qwilcox(0.1/2,10,10))-1,10,10)
[1] 0.9107904
---[/nitpicking]--------------------------------
What I'm very curious of is that scatter between the runs. Seems that one has to simulate at least 100 000 or more datasets to get a reliable coverage.
To much beer in case of coin:wilcox_exac()

BTW: with round to five decimals I have observed anyhow up to 10 sets with ties among the 10 000 sims.
—
Regards,
Detlew
Regards,
Detlew
Complete thread:
- tmax in case of ties: R vs. R vs. SAS d_labes 2010-09-10 12:05 [Nonparametrics]
- tmax in case of ties: StatXact, Phoenix, and... Helmut 2010-09-10 18:28
- Ties, no ties, ties, no ties ... d_labes 2010-09-13 13:21
- simulation martin 2010-09-14 08:33
- simulants of the world unite d_labes 2010-09-15 10:14
- simulants of the world unite martin 2010-09-15 14:53
- simulants of the world unite Helmut 2010-09-15 16:17
- simul ants with no tiesd_labes 2010-09-16 11:19
- simul ants with no ties Helmut 2010-09-16 14:01
- two different approaches martin 2010-09-16 15:35
- simul ants with no ties Helmut 2010-09-16 14:01
- simul ants with no tiesd_labes 2010-09-16 11:19
- simulants of the world unite Helmut 2010-09-15 16:17
- simulants of the world unite martin 2010-09-15 14:53
- simulants of the world unite d_labes 2010-09-15 10:14
- simulation martin 2010-09-14 08:33
- Ties, no ties, ties, no ties ... d_labes 2010-09-13 13:21
- evaluation of tmax: use of relative effects? martin 2010-09-16 18:04
- Not positive about that Helmut 2010-09-16 19:52
- Not positive about that martin 2010-09-16 21:00
- Stupidity Helmut 2010-09-17 13:10
- Not positive about that martin 2010-09-16 21:00
- Not positive about that Helmut 2010-09-16 19:52
- tmax in case of ties: R vs. R vs. SAS Jack 2010-09-20 14:03
- R packages Helmut 2010-09-20 14:20
- R packages code d_labes 2010-09-27 11:27
- R packages Jack 2010-09-27 16:14
- Is Exact exact? d_labes 2010-09-27 09:53
- R packages Helmut 2010-09-20 14:20
- tmax in case of ties: StatXact, Phoenix, and... Helmut 2010-09-10 18:28