R : Copyright 2006, The R Foundation for Statistical Computing
Version 2.3.1 beta (2006-05-18 r38119)
ISBN 3-900051-07-0

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> library(drfit)
Loading required package: MASS
Loading required package: RODBC
> data(XY)
> rXY <- drfit(XY,logit=TRUE,weibull=TRUE,chooseone=FALSE)

Control: Fitting data...

Substance X: Fitting data...
Waiting for profiling to be done...
Waiting for profiling to be done...

Substance Y: Fitting data...
> rXY
    Substance ndl  n  lld  lhd    mtype  logED50     2.5%    97.5% unit
1     Control   1  6 -Inf -Inf inactive       NA       NA       NA mg/L
2 Substance X   4 12    1    3   probit 2.161905 2.105861 2.214359 mg/L
3 Substance X   4 12    1    3    logit 2.160948 2.112152 2.207912 mg/L
4 Substance X   4 12    1    3  weibull 2.174365       NA       NA mg/L
5 Substance Y   4 12    1    3   active       NA       NA       NA mg/L
       sigma        a         b
1         NA       NA        NA
2 0.04131746 2.161905 0.5061306
3 0.03758732 2.160948 0.2991424
4 0.05723870 3.009640 2.0362368
5         NA       NA        NA
>