human
Interquartile Range ( IQR ) | Function to give index of the median.
Function to calculate IQR.
Index of median of entire data.
Median of first half.
Median of second half.
IQR calculation.
Driver Function"
Solution in Python:

=====
What is a code to interquartile Range ( IQR ) and the other steps required?
assistant
#Here is code to interquartile Range ( IQR ) and the other steps required.
 def median ( a , l , r ) :
	n = r - l + 1
	n = ( n + 1 ) // 2 - 1
	return n + l
def IQR ( a , n ) :
	a . sort ( )
	mid_index = median ( a , 0 , n )
	Q1 = a [ median ( a , 0 , mid_index ) ]
	Q3 = a [ mid_index + median ( a , mid_index + 1 , n ) ]
	return ( Q3 - Q1 )
if __name__ == ' _ _ main _ _ ' :
	a = [ 1 , 19 , 7 , 6 , 5 , 9 , 12 , 27 , 18 , 2 , 15 ]
	n = len ( a )
	print ( IQR ( a , n ) )