Glossary
absolute address
In Excel, the use of a $ prior to a row number and a column letter to lock a formula to that row and column. $C$5 is an absolute address, and if used in a formula it will not change if the formula is copied to a different row or column. C5 is a relative address, and both $C5 and C$5 are mixed addresses.
alist
A list in R that serves as a kind of placeholder. Elements in an alist are not necessarily evaluated immediately but can wait until other elements in the list with a higher priority have been evaluated.
Analysis of Covariance (ANCOVA)
Similar to the Analysis of Variance, ANCOVA adds to the design a numeric variable called a covariate. Before the group means are tested for differences, the correlation between the ...
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