Corporate Services has embarked on an extensive programme of audit, testing and supplier liaison to avoid unmanageable problems in the year 2000, so far as University-wide IT systems and standards are concerned. The programme does not cover all equipment and systems which use dates. Use Windows Explorer if you can not find it. If you have a second drive installed and not much space on the primary one, you can change the drive assigned to virtual memory. There are costs associated with the use of Rubens but because it is a very fast machine these costs will be very low in most cases.
Multivariate outliers are cases with an unusual combination of values on two or more variables.
The criterion for multivariate outliers is Mahalanobis distance that is the distance of a case from the centroid of all other cases - the point whose coordinates are the means of tested variables. The dependent variable can be any variable because it doesn't participate in calculating Mahalanobis distance. If your analysis is based on grouped data, for example analysis of variance, every group should be screened for outliers separately. The difference between email alias, email addresses and email accounts can be confusing at times - we attempt to clarify just what the differences are. However there are more pieces that make up the complete picture of email delivery to your computer.