antifoul.RdThis data set shows the response of the rat leukaemic cell line IPC-81 to dilution series of tributyltin chloride (TBT) and Zink Pyrithione as retrieved from the "cytotox" database of the UFT Department of Bioorganic Chemistry on February 25, 2004
data(antifoul)A dataframe containing 135 and 81 data points for concentrations and responses for TBT and Zink Pyrithione, respectively. Some additional columns from the database are also present.
rantifoul.ED50 <- drfit(antifoul,
                        linlogit = TRUE, logit = TRUE, weibull = TRUE,
                        chooseone = FALSE,
                        showED50 = TRUE, EDx = c(10))
#> 
#> TBT: Fitting data...
#> Waiting for profiling to be done...
#> Waiting for profiling to be done...
#> Waiting for profiling to be done...
#> 
#> Zn Pyrithion: Fitting data...
#> Waiting for profiling to be done...
#> Waiting for profiling to be done...
#> Waiting for profiling to be done...
print(rantifoul.ED50, digits = 5)
#>      Substance ndl   n     lld    lhd    mtype  logED50     2.5%     97.5%
#> 1          TBT  38 135 -2.7093 2.3979 linlogit -0.15810 -0.26021 -0.050475
#> 2          TBT  38 135 -2.7093 2.3979   probit -0.16436 -0.26504 -0.056498
#> 3          TBT  38 135 -2.7093 2.3979    logit -0.16012 -0.26116 -0.052591
#> 4          TBT  38 135 -2.7093 2.3979  weibull -0.11507       NA        NA
#> 5 Zn Pyrithion  27  81 -2.1072 2.0000 linlogit -0.41329 -0.52932 -0.299800
#> 6 Zn Pyrithion  27  81 -2.1072 2.0000   probit -0.39792 -0.50783 -0.291563
#> 7 Zn Pyrithion  27  81 -2.1072 2.0000    logit -0.40035 -0.51049 -0.293501
#> 8 Zn Pyrithion  27  81 -2.1072 2.0000  weibull -0.38795       NA        NA
#>     unit   sigma        a       b         c    ED50 ED50 2.5% ED50 97.5%
#> 1 microM 0.19264 -0.15810 1.04066 -0.024161 0.69487   0.54927    0.89028
#> 2 microM 0.19286 -0.16436 0.67637        NA 0.68493   0.54320    0.87801
#> 3 microM 0.19199 -0.16012 0.41358        NA 0.69164   0.54808    0.88595
#> 4 microM 0.18810  0.63743 1.28891        NA 0.76724        NA         NA
#> 5 microM 0.22878 -0.41329 1.74249  0.610809 0.38611   0.29558    0.50142
#> 6 microM 0.22866 -0.39792 0.41696        NA 0.40002   0.31058    0.51102
#> 7 microM 0.22802 -0.40035 0.25395        NA 0.39779   0.30868    0.50874
#> 8 microM 0.23008  0.47647 2.51561        NA 0.40931        NA         NA
#>      EDx10
#> 1 0.085214
#> 2 0.093077
#> 3 0.085340
#> 4 0.053392
#> 5 0.120232
#> 6 0.116872
#> 7 0.110068
#> 8 0.121166
rantifoul.drc <- drcfit(antifoul,
                        linlogit = TRUE, logit = TRUE, weibull = TRUE,
                        chooseone = FALSE,
                        showED50 = TRUE, EDx = c(10))
#> 
#> TBT: Fitting data...
#> 
#> Zn Pyrithion: Fitting data...
print(rantifoul.drc, digits = 5)
#>      Substance ndl   n     lld    lhd    mtype  logED50     2.5%     97.5%
#> 1          TBT  38 135 -2.7093 2.3979 linlogit       NA       NA        NA
#> 2          TBT  38 135 -2.7093 2.3979   probit -0.16436 -0.28178 -0.072022
#> 3          TBT  38 135 -2.7093 2.3979    logit -0.16012 -0.27782 -0.067603
#> 4          TBT  38 135 -2.7093 2.3979  weibull -0.13012 -0.23786 -0.043860
#> 5 Zn Pyrithion  27  81 -2.1072 2.0000 linlogit -0.41330 -0.54457 -0.312631
#> 6 Zn Pyrithion  27  81 -2.1072 2.0000   probit -0.39792 -0.52005 -0.302705
#> 7 Zn Pyrithion  27  81 -2.1072 2.0000    logit -0.40035 -0.52324 -0.304676
#> 8 Zn Pyrithion  27  81 -2.1072 2.0000  weibull -0.37351 -0.49792 -0.276917
#>     unit   sigma        a        b         c    ED50 ED50 2.5% ED50 97.5%
#> 1 microM 0.19264  0.71806  1.04061 -0.024169      NA        NA         NA
#> 2 microM 0.19286  0.68492 -0.64209        NA 0.68492   0.52267    0.84718
#> 3 microM 0.19199  0.69165  1.05007        NA 0.69165   0.52744    0.85585
#> 4 microM 0.18900 -0.13012  0.79816        NA 0.74111   0.57828    0.90394
#> 5 microM 0.22878  0.30926  1.74257  0.611358 0.38610   0.28538    0.48682
#> 6 microM 0.22866  0.40002 -1.04159        NA 0.40002   0.30196    0.49808
#> 7 microM 0.22802  0.39779  1.71015        NA 0.39779   0.29975    0.49582
#> 8 microM 0.23077 -0.37351  1.19152        NA 0.42315   0.31775    0.52855
#>      EDx10 EDx10 2.5% EDx10 97.5%
#> 1       NA         NA          NA
#> 2 0.093074   0.040308     0.14584
#> 3 0.085338   0.035963     0.13471
#> 4 0.069958   0.026197     0.11372
#> 5 0.120238   0.043513     0.19696
#> 6 0.116878   0.048151     0.18561
#> 7 0.110068   0.043085     0.17705
#> 8 0.087066   0.017958     0.15617