Hi I noticed a small inconsistency when using sum() vs cumsum()
I have a char-based series > tryjpy$long [1] "0.0022" "-0.0002" "-0.0149" "-0.0023" "-0.0342" "-0.0245" "-0.0022" [8] "0.0003" "-0.0001" "-0.0004" "-0.0036" "-0.001" "-0.0011" "-0.0012" [15] "-0.0006" "0.0016" "0.0006" When I run sum() vs cumsum() , sum fails but cumsum converts the series to numeric before summing: > sum(tryjpy$long) Error in sum(tryjpy$long) : invalid 'type' (character) of argument > cumsum(tryjpy$long) [1] 0.0022 0.0020 -0.0129 -0.0152 -0.0494 -0.0739 -0.0761 -0.0758 -0.0759 [10] -0.0763 -0.0799 -0.0809 -0.0820 -0.0832 -0.0838 -0.0822 -0.0816 Which I guess is due to the following line in do_cum(): PROTECT(t = coerceVector(CAR(args), REALSXP)); This might be fine and there may be very good reasons why there is no coercion in sum - just seems a little inconsistent in usage Cheers -- Rory ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
