[Rd] Test for Equality of Coefficient of Variation

[Gregory Kotler]

Hi ALL,
Do R have any tools for testing equality of coefficients of variation 
for k normal populations ?
 
  Thank you,
Gregory Kotler

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[Rd] Cox survival model

[Gregory Kotler]

Hi ALL,

I am trying to modify Cox propotional hazard function according to my 
project needs.
Is it possible to find source code of C procedures used for fittinf 
PHREG model:
coxfit2.c and  coxmart.c.?

   Thank you,
  Gregory Kotler

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[Rd] Cox model - (TStart,Tstop] algorith

[Gregory Kotler]

Hi ALL,
 To fit proportional hazard Cox Model with counting
process style of input data R and S-plus implement
"(TStart,Tstop] algorithm" (agfit3.c) which  uses
"smart subsets" of sorted events time. Are there any
accessible publications where the idea of this
algorithm was represented ?

 Thank you,
Gregory Kotler

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