## Statistics / Estimate sample size

### Description

Calculates various sample size related estimates based on normalized data set.

### Parameters

- Effect size, i.e., fold change (0...100) [2]
- Alpha, i.e., p-value (0...1) [0.05]
- Beta, i.e., power (0...1) [0.05]
- Group size, i.e., sample size

### Details

Calculates several estimates related to sample size and power based on a normalized dataset. These estimates are:

- Sample size to detect at least an effect of the specified magnitude.
- Power to detect at least an effect of the specified magnitude with the specified sample size.
- Fold change that can be detected at certain power assuming the specified sample size.

Every estimate produces a separate image that can be visualized using the Chipster GUI.

### Output

Three images visualizing the estimates produced by the tool.

### References

This tools uses Bioconductor package ssize. Please site the following article:

Warnes, G. R., Liu, P. (2005) Sample Size Estimation for Microarray Experiments, submitted to Biometrics.