Here the data is given for one subject ID i.e. 101 i want to generate new data after dividing each variable(CLU, CysC, KIM-1, NAG, NGAL, OPN) by CREAT variable by timepoint (screenin, day-1 , 6h post and so on).
After getting this data we need to generate next data using last generate data by dividing day-1 value to all other time point values.
A handy way to supply some sample data is the dput() function. In the case of a large dataset something like dput(head(mydata, 100)) should supply the data we need. Just do dput(mydata) where mydata is your data. Copy the output and paste it here.