I have a df with lots of columns :
date risk lev chemical weight date risk lev chemical weight
15-5-16 5 Potasium 5mg 15-5-16 3 Sodium 7 mg
14-5-16 6 Potasium 10mg 14-5-16 2 Sodium 2 mg
I would like to re-arrange it so that each 4 columns breaks into a new row , such as the df is like this:
date risk lev chemical weight
15-5-16 5 Potasium 5mg
15-5-16 3 Sodium 7mg
14-5-16 6 Potasium 10mg
14-5-16 2 Sodium 2mg
Sorry that I do not include my try but is the first time I counter this issue and not sure how to proceed