Chapter 9
9.1. EXAMPLES TO MOTIVATE TIME-DEPENDENT COVARIATES 3 9.1 Examples to motivate time-dependent covariates Stanford Heart transplant example: Variables: • survival - days since program enrollment until death or censoring • dead - indicator of death (1) or censoring (0) • transpl - whether patient ever had transplant (1 if yes, 2 if no) • surgery - previous heart surgery …
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Summation rules - University of Kentucky
ms.uky.eduMA 123, Chapter 9: Computing some integrals (pp. 189-205) Date: Chapter Goals : Assignments : Understand how to use basic summation formulas to evaluate more complex sums.
Summation rules
ms.uky.eduSummation rules: [srl] The summations rules are nothing but the usual rules of arithmetic rewritten in the notation. For example, [sr2] is nothing but the distributive law of arithmetic C an) C 01 C02 C an [sr3] is nothing but the commutative law of addition bl) ± b2) (an Summation formulas: n(n -4- 1) [sfl) k [sf2]
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