EffectsRelBaseline (version 0.5)

EffectsRelBaseline-package: Test changes of a grouped response relative to baseline.

Description

Functions to test for changes of a response to a stimulus grouping relative to a background or baseline response.

Details

Package:

EffectsRelBaseline

Version:

0.4

Date:

2013-06-12

License:

GPL version 3 or newer

Built:

R 2.15.2; ; 2013-06-12 22:41:44 UTC; unix

Index:

ef          Example data of human single neuron responses to presentation of emotional faces.
fRatioStat    
                        F-ratio statistic for grouped responses.
LL1WayAnova		
                        Log-likelihood ratio statistic for grouped responses.
relBackgroundLL
                        Log-likelihood ratio of grouped responses being drawn from 
                        a background distribution with known mean and variance.
sumSqCat
                        Weighted sum of squared deviations test statistic, as used
                        in the changes from background test (CBT).

This package provides functions for testing whether grouped responses have significant deviations from baseline. It allows testing using the non-parametric changes from background test (CBT), which doesn't require multiple testing relative to baseline followed by a second test for an effect of group on the responses. Such double testing can lead to erroneous conclusions, as discussed in Steinmetz & Thorp, 2013.

The primary function is sumSqCat which computes the appropriate test statistic for use in the CBT. A variety of other test functions are provided which can be used for comparison of performance.

References

Steinmetz, P.N. & Thorp, C.K. (2013) Testing for effects of different stimuli on neuronal firing relative to background activity. Journal of Neural Engineering, Sept. 2013.

See Also

PsumtSim-package boot