
I'm using the range command to get the minimum and maximum values of an array as in

x <- range(array_y)

which gives me two values such as

[1] -2 9

I need to be able to test if this range of values includes a third value.  For example I'd like to query

1) does the range of -2 to 9 include 3, answer TRUE
2) does the range of -2 to 9 include -6, answer FALSE?

All values could be negative or positive.  Is there a R function that will test this or do I need to programme it?  I have searched but not found one.

Thanks

J

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Dr. Jim Maas
University of East Anglia

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