TITEL              : Asphalt 
KEYWORDS (statist) : multiple regression
ANWENDUNGSGEBIET   : Technik, Strassenbau
VERW.(VORL./J.-S.) : R/SS80-, R/SS82-, R/SS84-, R/SS86-34, R/SS88-36,... StMeth,chemIng
                     
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KURZE BESCHREIBUNG : Verschiedene Versuchsreihen zur Abnutzung des Asphaltes
                     in Funktion verschiedener Eigenschaften.

   y = RUT  : "rate of rutting" = change of rut depth in inches/million
		    wheel passes  ["rut":= 'Wagenspur", ausgefahrenes Geleise]
  x1 = VISC : viscosity of asphalt
  x2 = ASPH : percentage of asphalt in surface course
  x3 = BASE : percentage of asphalt in  base   course
  x4 = RUN  : '0/1' indicator for two sets of runs.
  x5 = FINES: 10* percentage of fines in surface course
  x6 = VOIDS: percentage of voids in surface course

SPEZ. EIG.         : y & x1  werden logarithmiert;
			Cp, stepwise regression
                     
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DIM.(VAR./FAELLE)  : 7/31
S-plus:	read.table("...") 
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* / LITERATUR      : DtA/ Daniel & Wood 1980, 6.5, p.95 ff.
		     ?D/ Gorman, J.W. and Toman, R.J. (1966).
			   "Selection of Variables ..", Technometrics 8, 27-51.
                   * D=Daten, vA=volle Analyse, tA=teilweise Analyse,
                     K=Kommentar

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BEMERKUNGEN        :  

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USERS              : ..
DATUM/UNTERSCHRIFT : 30.8.88/Ruckstuhl; 11.96/M.Mächler