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Salman Yousaf

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

In R, the ** median()** method is used to find the median of the sample data, with the assumption that the dataset or sample data is sorted from smallest to largest.

- Odd length: if the number of entries in the dataset is odd, then the
*middle*value will be the median. - Even length: if the number of entries in the dataset is even, then the median will be the average of
*two*middle values.

The syntax for the `median()`

function to calculate the middle value of the vector `x`

is as follows:

```
median(x, na.rm = FALSE,...)
```

`x`

: vector of numerical values.`na.rm`

: default=False.`na.rm`

is a boolean field that can either be`True`

or`False`

. If it is set to`False`

, the dataset does not contain`NA`

values. Otherwise, we can set it to`True`

.`...`

: further potential arguments for methods.

- Object: The default method will return a one-length object of the same type as
`x`

. - Double integer: If
`x`

is an even-length integer, the return type will be double. - NA: If a dataset contains NA values and
`na.rm`

is set to`False`

.

The code snippet below illustrates how the `median()`

method works with a single argument. It takes `x`

to compute the median of these values.

# Create the vector.x <- c(1,2,3,4,5.3,6,7,8,9,13,11)# Find the median.mid_value <- median(x)cat("Median is:", mid_value)

In the example below, the `median()`

method takes a vector `x`

and `na.rm`

set to `TRUE`

. `median()`

will first eliminate NA values and then it will compute the median of the remaining values.

# Create the vector.x <- c(1,2,3,4,5.3,6,7,8,9,NA,13,11)# Find the median.mid_value <- median(x,na.rm=TRUE)print(mid_value)

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Salman Yousaf

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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