Selection by comparison in vector R

R Programming Language / Vector in R Language

590

Program:

# Poker and roulette winnings from Monday to Friday:
poker_vector <- c(140, -50, 20, -120, 240)
roulette_vector <- c(-24, -50, 100, -350, 10)
days_vector <- c("Monday", "Tuesday", "Wednesday", "Thursday", "Friday")
names(poker_vector) <- days_vector
names(roulette_vector) <- days_vector

# Which days did you make money on poker?
selection_vector <-  poker_vector > 0

# Print out selection_vector
selection_vector

Output:

> # Print out selection_vector
> selection_vector
   Monday   Tuesday Wednesday  Thursday    Friday 
     TRUE     FALSE      TRUE     FALSE      TRUE

Explanation:

# Which days did you make money on poker?
selection_vector <- poker_vector > 0

# Print out selection_vector
selection_vector

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