sum()

 The sum() function computes the sum of a series of values.

Example 1:

# Sum by indicating a series of values

sum(1, 2, 100)

Example output:

Example 2:

# Sum by using a saved vector

expenses <- c(33, 74, 12, 248, 520)

sum(expenses)

Example output:

Example 3:

# Sum by indexing a column in a data frame

sum(Fingers$Thumb)

Example output:

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• Sum of Absolute Deviations (SAD)

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