Re^3: Mean, Median and Mode

There are two forms of the open() function in Perl 5. The modern version takes three arguments, the filehandle to open or vivify, the mode of the filehandle, and the name of the file.

my $filename = "faketext.txt";
open my $fh, '<', $filename or die "Can't write to '$filename': $!\n";
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After that use while loop and read the file content line by line and do the slite and call your mean,madian,etc functions like below,

while(my $eachLine = <$fh>)
{
     chomp($eachLine);
     my @dataset = split( /[\s,]+/, $eachLine );

     print "Median: ",        median(@dataset),  "\n";
     print "Mean: ",          mean(@dataset),    "\n";
     print "Standard Dev.: ", std_dev(@dataset), "\n";
}
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All is well

Comment on Re^3: Mean, Median and Mode Select or Download Code

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Re^4: Mean, Median and Mode by 2teez (Vicar) on Jun 16, 2014 at 07:30 UTC
With split, chomp job here would have been taken care off. More so, it would be wonderful, if the OP tell what the content of his file 'faketext.txt' is. Is he counting the numbers of lines in the file? Is he getting different value from each line? Maybe a peek into the file would have helped. If the OP file is CSV file, then Text::CSV_XS would be alot better than splitting on commas. If you tell me, I'll forget. If you show me, I'll remember. if you involve me, I'll understand. --- Author unknown to me	[reply]
Re^5: Mean, Median and Mode by vinoth.ree (Monsignor) on Jun 16, 2014 at 07:36 UTC
Yes, I agree 2teez, first we need to understand his requirement fully, it will not help him, if we assuming ourself something and answering him? *All is well*	[reply]
Re^5: Mean, Median and Mode by Noob@Perl (Novice) on Jun 16, 2014 at 07:36 UTC
contents of faketext.txt. after I enter "data" as in 1,2,3 (pertaining to lines 1,2,3 of txt file) it should print the mean median and mode Far far away, behind the word mountains, far from the countries Vokali +a and Consonantia, there live the blind texts. Separated they live in + Bookmarksgrove right at the coast of the Semantics, a large language + ocean. A small river named Duden flows by their place and supplies i +t with the necessary regelialia. It is a paradisematic country, in wh +ich roasted parts of sentences fly into your mouth. Even the all-powerful Pointing has no control about the blind texts it + is an almost unorthographic life One day however a small line of bli +nd text by the name of Lorem Ipsum decided to leave for the far World + of Grammar. The Big Oxmox advised her not to do so, because there we +re thousands of bad Commas, wild Question Marks and devious Semikoli, + but the Little Blind Text didn’t listen. She packed her seven versal +ia, put her initial into the belt and made herself on the way. When she reached the first hills of the Italic Mountains, she had a la +st view back on the skyline of her hometown Bookmarksgrove, the headl +ine of Alphabet Village and the subline of her own road, the Line Lan +e. Pityful a rethoric question ran over her cheek, then she continued + her way. On her way she met a copy. The copy warned the Little Blind Text, that where it came from it woul +d have been rewritten a thousand times and everything that was left f +rom its origin would be the word "and" and the Little Blind Text shou +ld turn around and return to its own, safe country. But nothing the c +opy said could convince her and so it didn’t take long until a few in +sidious Copy Writers ambushed her, made her drunk with Longe and Paro +le and dragged her into their agency, where they abused her for their + projects again and again. And if she hasn’t been rewritten, then the +y are still using her. [download]	[reply] [d/l]
Re^6: Mean, Median and Mode by Noob@Perl (Novice) on Jun 16, 2014 at 07:39 UTC
this is what is needed to be accomplished -> Using the FakeText.txt ,write a script that opens the file and reads all of the lines. As each line is read in, split it into words and send each word to subroutines that will calculate the mean, median, and standard deviation for the lengths of those words. Print the total mean, median, and standard deviation to the screen after the entire file has been processed	[reply]
Re^7: Mean, Median and Mode by vinoth.ree (Monsignor) on Jun 16, 2014 at 09:05 UTC