[R] How to perform a substitution in a loop?

[Saji Ren]

Hello, Mr Dalgaard:

you're right about the problem.

"Works for me, so there's something you're not telling us.... Possibly
that x is not a vector (a data frame, maybe?)."

the mistake  message is below:
Error in if (track01[i] > 1) track01[i] <- 1 :
  missing value where TRUE/FALSE needed

the track01 above is my data, I've used a rnorm(500) data series instead,
and the code works!!

One thing I do know is that my "track01" data has NaN data.
So I guess the system can not perform the code " if (track01[i] > 1)" when
track01[i]=NaN, or the result is missing value, thus it need a TRUE/FALSE

is there any command to replace the "NaN" value with 1 in an efficient way?

Saji

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Saji Ren
from Shanghai China
GoldenHeart Investment Group
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