is.element() doesn't check correctly (?) in R -


i got little weird problem here:

setprogress <- function(total) {     ticks <- seq(.01, 1, = 0.01) * total     return(ticks) }  ticks <- setprogress(10000) is.element(100, ticks) is.element(205, ticks) # ... is.element(700, ticks)

if run code get:

clearly 100 part of vector ticks. -> true
205 not. -> false
700 is part of ticksbut receive output false.

what going on here?

cheers, martin

it's rounding error. set options(digits=22) , view ticks. you'll find value: 7000.0000000000009094947

the error because 0.7 cannot represented binary floating point number.

you may able fix using definition:

 setprogress <- function(total) { seq(total/100, total, length=100) }

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