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Table 1 Estimating p0 and average effect size with different methods using all 100 replicates

From: Estimating the number and size of the main effects in genome-wide case-control association studies

 

p0 Estimates

Average effect size estimates

 

No. times p0 = 1

Mean

Std. dev.

Mean

Std. dev.

Quasi-maximum likelihood

0

0.998425

1.97 × 10-4

0.083

5.10 × 10-3

Maximum likelihood

0

0.998424

1.92 × 10-4

0.083

4.92 × 10-3

Conservative (k = 1)

0

0.998409

1.72 × 10-4

0.083

4.94 × 10-3

Adaptive conservative

0

0.998425

2.12 × 10-4

0.083

5.09 × 10-3

Lowest slope

0

0.998162

2.99 × 10-4

0.082

5.09 × 10-3

Storey-Tibshirani

38

0.984106

1.87 × 10-2

0.052

2.79 × 10-2

Storeya

2

0.972607

2.59 × 10-2

0.051

2.75 × 10-2

Location based estimator

100

1

0

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  1. aFor Storey's, estimator we used the grid he suggested in his article (0.01, 0.02,...,0.95).
  2. b---, p0 = 1. There is no marker to estimate effect size.