Correlation matrix should only show correlations to 3 or 4 digits accuracy

[gkronber]

This is usually sufficient and the information can be represented more compactly this way

[gkronber]

r12137: only show correlations to 3 digits accuracy.

[gkronber]

I also had a look at a way to rotate the column headers of the correlation matrix by 90° (see ​http://stackoverflow.com/questions/5782674/net-winforms-vertical-text-in-datagridview) But the proposed solution is rather hacky and does not work as expected.

[mkommend]

r12151: Reverse merged r12137 and implemented a format pattern for the EnhancedStringConvertibleMatrixView.

[gkronber]

Ok, thanks but please reintroduce

} else if (i == j) { 	 	 
  dt[i, j] = 1.0; 
} ...

in CorrelationView.cs

[mkommend]

r12152: Readded line in CorrelationView (handling of diagonal values).

[ascheibe]

Ok, thanks.

[gkronber]

r12199: merged r12137, r12151:12152 from trunk to stable