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Nov 4, 2019 in R Language

Q: R Logical Operators

1 Answer

Nov 4, 2019

With logical operators, we want to return values inside the vector based on logical conditions. Following is a detailed list of logical operators available in R

The logical statements in R are wrapped inside the []. We can add many conditional statements as we like but we need to include them in a parenthesis. We can follow this structure to create a conditional statement:

variable_name[(conditional_statement)]

With variable_name referring to the variable, we want to use for the statement. We create the logical statement i.e. variable_name > 0. Finally, we use the square bracket to finalize the logical statement. Below, an example of a logical statement.

Example 1:

# Create a vector from 1 to 10
logical_vector <- c(1:10)
logical_vector>5

Output:

## [1]FALSE FALSE FALSE FALSE FALSE  TRUE  TRUE  TRUE  TRUE  TRUE

In the output above, R reads each value and compares it to the statement logical_vector>5. If the value is strictly superior to five, then the condition is TRUE, otherwise FALSE. R returns a vector of TRUE and FALSE.

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