I have two different data frames , one per condition, where each one of them has 3 columns:
specie : a qualitative value
population@4days : population calculated for that specie at 4 days
population@12days : population calculated for that specie at 12 days
Using basic calculations I have computed the growth rate for each population and now I want to compare the two distribution of rates ( I am interested in a global conclusion, not specific for each specie)
My question is if I need to normalize to correctly compare them. The number and species in each one is different and the sum of population is also different between all of them.
If I have to, which will be the best way to normalize and compare them?
Thank you in advance for your consideration.