Hi,
I'm trying to figure out how to properly construct a graph of frequencies of a difference between 2 values, that is | i | - | j |.
I'd like to know the best way to store the actual data because of course doing my_vector[i -j] will not work because the index could be negative.
I know there's no hash table so what's the best solution, simplicity-wise ? Use a list of pair of values {index, i - j} ? Or can I somehow use negative index, perhaps using 0array ? Any help would be appreciated :)
ATM, I use as.character (i-j) to index my data, but I lose all the processing power of R there after.
Sorry If it's written somewhere, but I read a lot of docs about it, searched through the ML archives and didn't manage to find an answer.
Please also answer me back at my email address as I am not subscribed to the list.
Best regards,
--Stephane
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