Mean, Median, Mode in R - Central Tendency

Mean, Median, Mode in R - Central Tendency

x <- c(1,2,3,4,5,6,7,7,7)

# calculate mean

mean(x) 

4.666667

# calculate median

median(x)

5

# calculate mode

tbl(x)

1 2 3 4 5 6 7 

1 1 1 1 1 1 3 

#mode == 7 as it is present 3 times

Remember

1. # is used to comment in R and will not execute

2. Ctrl + Enter will executed the code in line where the cursor is. No need to select the code.

3. Mean == average

4. Median == Middle value in a sorted data set

5. Mode == Most common observation

# calculate standard deviation # post your results if you found this useful
sd(x)



# calculate variance # post your result if you found this useful
var(x)

# calculate IQR (interquartile range)
IQR(x)