search for: gpr119a

Hello I am trying to find a way to find the max value, for only a subset of a dataframe, depending on how the data is grouped for example, How would I find the maxmium responce, for all the GPR119a condition below: I've tried tapply > tapply(GPR119data$responce, GPR119data$GPR119a, max) Error in tapply(GPR119data$responce, GPR119data$GPR119a, max) :   arguments must have same length responce,mouce,condition 0.105902,KO,con 0.232018561,KO,con 0.335008375,KO,con 0.387025433,KO,GPR119...

Hello I am trying to find a way to find the max value, for only a subset of a dataframe, depending on how the data is grouped for example, How would I find the maxmium responce, for all the GPR119a condition below: responce,mouce,condition 0.105902,KO,con 0.232018561,KO,con 0.335008375,KO,con 0.387025433,KO,GPR119a 0.576769897,KO,GPR119a 0.645120419,KO,GPR119a 0.2538608,KO,GPR119b 0.183061952,KO,GPR119b 0.824035587,KO,GPR119b 0.399201597,KO,GPR119c 0.417006618,KO,GPR119c 0.572958834,KO,GPR11...