search for: unbalenced

...in RSS feeds were not processed correctly by Markdown. * Now supports URLs containing literal parentheses for inline links and images, such as: [WIMP](http://en.wikipedia.org/wiki/WIMP_(computing)) Such parentheses may be arbitrarily nested, but must be balanced. Unbalenced parentheses are allowed however when the URL when escaped or when the URL is enclosed in angle brakets `<>`. * Fixed a performance problem where the regular expression for strong emphasis introduced in version 1.0.1d could sometime be long to process, give slightly wrong r...

...in RSS feeds were not processed correctly by Markdown. * Now supports URLs containing literal parentheses for inline links and images, such as: [WIMP](http://en.wikipedia.org/wiki/WIMP_(computing)) Such parentheses may be arbitrarily nested, but must be balanced. Unbalenced parentheses are allowed however when the URL when escaped or when the URL is enclosed in angle brakets `<>`. * Fixed a performance problem where the regular expression for strong emphasis introduced in version 1.0.1d could sometime be long to process, give slightly wrong r...

A common point made in discussion of contrasts, type I, II, III SS etc is that for sensible comparisons one should use contrasts that are 'orthogonal in the row-basis of the model matrix' (to quote from http://finzi.psych.upenn.edu/R/Rhelp02/archive/111550.html) Question: How would one check, in R, that this is so for a particular fitted linear model object? Steve Ellison