Condition operators · #24
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base
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To check for a condition, use one of the following condition operators:
>: strictly bigger<: strictly lower==: equal to. Please note that you need to use two equal signs.>=: bigger or equal<=: lower or equal!=: not equal/different to
x > y
x < y
x == y
x >= y
x <= y
x != yAny condition check gives TRUE if the condition is met or FALSE if the condition is not met.
Dive deeper
To check for multiple conditions at the same time, use:
&(&&), "AND": check if the two conditions are met at the same time|(||), "OR": check if at least one of the two conditions is met
x < y & is.numeric(x) == TRUE
x == "Nancy" | x == "Metz"
The first line is TRUE if x is lower than y and is of type numeric. The second line is TRUE is x is either "Nancy" or "Metz".
To check if an object is or is not in a predefined list, see:
Documentation
R: Relational Operators
R: Logical Operators