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...p ex.spread = max{ sqrt [ (xi-xj)^2 - (yi-yj)^2 ] } for i not equal to j I have 60 levels to apply this to. There is the combination function in the dprep package but I wasn't sure how to use this or apply an index the points in each group. Any ideas? Steve Steven Matthew Anderson AdAstra69 at mac.com Ad Astra per Aspera

...ctors: 2 Names of linear predictors: log(mu), log(shape) Dispersion Parameter for gamma2 family: 1 Log-likelihood: -26.39268 on 123 degrees of freedom Number of Iterations: 8 Steven Matthew Anderson Anderson Research, LLC Statistical Programming and Analysis SAS (R) Certified Professional AdAstra69 at mac.com Ad Astra per Aspera ???????

I have a data.frame with three columns + the row number Sample MidPoint Count [1,] 1 0.025 1 [2,] 1 0.075 3 [3,] 1 0.125 15 [4,] 1 0.175 12 [5,] 1 0.225 5 [6,] 1 0.275 8 When I export the data to a csv the column names are shifted because the row numbers are being exported as well. Sample MidPoint

...Simulation.Data, file=paste(dir,"/DATA/Simulation_Data.csv",sep=''), sep=",", quote=FALSE, row.names=FALSE, qmethod="double") Steven Matthew Anderson Anderson Research, LLC Statistical Programming and Analysis SAS (R) Certified Professional AdAstra69 at mac.com Ad Astra per Aspera ???????

...> Dispersion Parameter for gamma2 family: 1 > > Log-likelihood: -26.39268 on 123 degrees of freedom > > Number of Iterations: 8 > > > Steven Matthew Anderson > > Anderson Research, LLC > Statistical Programming and Analysis > SAS (R) Certified Professional > AdAstra69 at mac.com > > Ad Astra per Aspera > > ??????? > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html >...

...o I get this information to give me predicted values given the same x-values I used in the experimental model (i.e. from Max.brks <- pretty(range(Max.Spread$Distance), 100)). Steven Matthew Anderson Anderson Research, LLC Statistical Programming and Analysis SAS (R) Certified Professional AdAstra69 at mac.com Ad Astra per Aspera ???????