R Language Fonctions couramment utilisées


Exemple

# Create 100 standard normals in a vector
x <- rnorm(100, mean = 0, sd = 1)

# Find the lenght of a vector
length(x)

# Compute the mean
mean(x)

# Compute the standard deviation
sd(x)

# Compute the median value
median(x)

# Compute the range (min, max)
range(x)

# Sum an iterable
sum(x)

# Cumulative sum (x[1], x[1]+x[2], ...)
cumsum(x)

# Display the first 3 elements
head(3, x)

# Display min, 1st quartile, median, mean, 3rd quartile, max
summary(x)

# Compute successive difference between elements
diff(x)

# Create a range from 1 to 10 step 1
1:10

# Create a range from 1 to 10 step 0.1
seq(1, 10, 0.1)

# Print a string
print("hello world")