Can anyone pls help me to resolve my school test in PERL

[gopalsd]

Hi Friends,

Can anyone pls help me to resolve my school test in PERL................

as follows.....

#!/usr/bin/perl
@data=N;
$sum=0;
print"enter the required No. of numbers to be inputed : f";
$N=<STDIN>;
print"enter the number";
for($i=0;$i<$N;$i+=1)
{$data[$i]=<STDIN>;
# chomp $data[$i];
$sum=$sum + $data[$i];}
 
# for($j=0;$j=$data[$i];$j+=1)
print"the entered numbers are",@data,"\n";
print"sum of the number:",$sum,"\n";
print"Average value the numbers:",$sum/$N,"\n";
 
@sorting=sort(@data);
$lengt=@data;
for ($j=0;$j < $lengt;$j++)
{# print $sorting[$j],"\n";
}
 
$X= (@sorting[($j-1)/2]+ @sorting[$j/2])/2;
print"the median is :$X";

QUE: the median is the middle value if the numbers have been sorted in
ascending order (for even numbers of values it is your choice to pick
the first or second of the middle numbers.

[nithinpes]

The way you have used sort function:

@sorting=sort(@data);
 

works for sorting strings in ascending order, numbers will be sorted according to ASCII value. If you want to sort the list numerically, use:

@sorting=sort {$a<=>$b} @data; # ascending order
@sorting=sort {$b<=>$a} @data; # descending order
 

[nithinpes]

You can find median as follows:

@sorting=sort {$a<=>$b} @data;
$length=@data;
if(($length%2)==0) {   ###check for even no. of elements
  $X1=$sorting[$length/2-1];     ##remember:length of array=last index+1
  $X2=$sorting[$length/2];
  print"the medians are :$X1 , $X2";      ##display 2 medians
}   
else {
$X= $sorting[($length-1)/2];
print"the median is :$X";         # median incase of odd elements
}
 
 

[KevinADC]

Please do not help people with their school tests nithinpes.

[nithinpes]

Please do not help people with their school tests nithinpes.

I apologize for that. Since, some effort in scripting was done by the person, I thought it won't be against posting guidelines.
Anyway, this won't be repeated.

[KevinADC]

I apologize for that. Since, some effort in scripting was done by the person, I thought it won't be against posting guidelines.
Anyway, this won't be repeated.

Homework I can see, but not tests. They have also posted this question on another forum so I think they are cheating, we should not encourage that, IMHO.

Kevin

[numberwhun]

nithinpes,

please check your PM's