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AdjDoseFun_int.R
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AdjDoseFun_int.R
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#Functions to re-adjust the Adj_dose column.
#You need to first call ChangeDosestoNumeric.R
#Each study has a different dose interval. In order to be able to compare doses of different studies,
#the equivalent dose if the dose interval was "day" is computed.
#When the dosing interval changes during the duration of the study,
#you keep the last dosing interval
AdjDoseFun_row=function(dose, dose_interval) {
if (dose_interval=="day") {
return(dose)
}else if (dose_interval=="week"){
return(round(dose/7,digits = 2))
}else if (dose_interval=="qod") {
return(round(dose/2,digits = 2))
}else if (dose_interval=="bi weekly") {
return(round(dose/14,digits = 2))
}else if (dose_interval=="every four days") {
return(round(dose/4,digits = 2))
}else if (dose_interval=="every four weeks") {
return(round(dose/28,digits = 2))
} else if (dose_interval=="twice weekly") {
return(round(dose/4,digits = 2))
}else if (dose_interval=="every five days") {
return(round(dose/5,digits = 2))
} else if (dose_interval== "bi weekly / every four weeks") {
return(round(dose/28,digits = 2))
}
}
AdjDose_intervalFun=function(dataf) {
Adj.dose=mapply(AdjDoseFun_row,as.vector(dataf$adj_dose),as.vector(dataf$dose_interval))
dataf$adj_dose=Adj.dose
return(dataf)
}