Differences

This shows you the differences between two versions of the page.

Link to this comparison view

reference:ft_statfun_roc [2018/08/23 14:43] (current)
Line 1: Line 1:
 +=====  FT_STATFUN_ROC =====
 +
 +Note that this reference documentation is identical to the help that is displayed in MATLAB when you type "help ft_statfun_roc"​.
 +
 +<​html><​pre>​
 +  <a href=/​reference/​ft_statfun_roc><​font color=green>​FT_STATFUN_ROC</​font></​a>​ computes the area under the curve (AUC) of the Receiver Operator
 +  Characteristic (ROC). This is a measure of the separability of the data divided
 +  over two conditions. The AUC can be used to test statistical significance of being
 +  able to predict on a single observation basis to which condition the observation
 +  belongs.
 +  ​
 +  Use this function by calling one of the high-level statistics functions as
 +    [stat] = ft_timelockstatistics(cfg,​ timelock1, timelock2, ...)
 +    [stat] = ft_freqstatistics(cfg,​ freq1, freq2, ...)
 +    [stat] = ft_sourcestatistics(cfg,​ source1, source2, ...)
 +  with the following configuration option
 +    cfg.statistic ​   = '​ft_statfun_roc'​
 + 
 +  Configuration options that are relevant for this function are
 +    cfg.ivar ​        = number, index into the design matrix with the independent variable
 +    cfg.logtransform = '​yes'​ or '​no'​ (default = '​no'​)
 +  ​
 +  Note that this statfun performs a one sided test in which condition "​1"​
 +  is assumed to be larger than condition "​2"​.
 +</​pre></​html>​