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max(subset(dataName, condition=="GPR119a")$responce)
У Аўт, 01/02/2011 у 19:05 +0000, A. Ramzan піша:
> 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,GPR119c
> 0.229467444,KO,GPR119d
> 0.294089745,KO,GPR119d
> 0.309964445,KO,GPR119d
> 0.30474325,KO,GPR119e
> 0.159374839,KO,GPR119e
> 0.467726848,KO,GPR119e
> 1.01841912,KO,GPR119f
> 0.423028621,KO,GPR119f
> 0.223588597,KO,GPR119f
> 
> Thank
> 
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