about the dot

2008-01-21 Thread Jeff Pang
I'm a little confused by perl's dot operator.for example, $ perl -le 'print 3 . 4 ' 34 $ perl -le 'print 3.4 ' 3.4 these two commands got different results. who says Perl interpreter will ignore the blackspace around an operator? I saw it doesn't here. Ok you may say 3.4 is a float not a sta

Re: Hash of hashes?

2008-01-21 Thread Rob Dixon
Chas. Owens wrote: On Jan 21, 2008 2:11 PM, Chas. Owens <[EMAIL PROTECTED]> wrote: snip snip So, if I understand correctly $data{$snp} is a value in a hash. That value is a scalar that happens, in this case, to be a reference to an anonymous hash? The key of this anonymous hash is $genotype?

Re: Hash of hashes?

2008-01-21 Thread Chas. Owens
On Jan 21, 2008 2:11 PM, Chas. Owens <[EMAIL PROTECTED]> wrote: snip > snip > > So, if I understand correctly $data{$snp} is a value in a hash. That value > > is a scalar that happens, in this case, to be a reference to an anonymous > > hash? The key of this anonymous hash is $genotype? It does

Re: Hash of hashes?

2008-01-21 Thread Chas. Owens
On Jan 21, 2008 1:27 PM, Kevin Viel <[EMAIL PROTECTED]> wrote: snip > > while () { > > my ($snp, $genotype) = split; > > $data{$snp}{$genotype}++ > > } snip > > $data{$snp}{$genotype}++ > > Is the semicolon unnecessary for this line? snip The semi-colon in Perl is a statement separator

Re: Hash of hashes?

2008-01-21 Thread Tom Phoenix
On Jan 21, 2008 10:27 AM, Kevin Viel <[EMAIL PROTECTED]> wrote: > > $data{$snp}{$genotype}++ > > Is the semicolon unnecessary for this line? It's not the line that matters, so much as what's going on. The semicolon is used after most statements to indicate the end of the statement; but the co

Re: extracting data from websites

2008-01-21 Thread jm
On Jan 21, 2008 12:39 PM, Chas. Owens <[EMAIL PROTECTED]> wrote: > On Jan 21, 2008 1:21 PM, jm <[EMAIL PROTECTED]> wrote: > > i need to extract data from websites, tracking the status of various > > shipments. i'm aware of the LWP module but wondered how many other > > modules may be useful. i've

Re: extracting data from websites

2008-01-21 Thread Chas. Owens
On Jan 21, 2008 1:21 PM, jm <[EMAIL PROTECTED]> wrote: > i need to extract data from websites, tracking the status of various > shipments. i'm aware of the LWP module but wondered how many other > modules may be useful. i've just glanced over the LWP documentation > (not in-depth at all yet) and

RE: Hash of hashes?

2008-01-21 Thread Kevin Viel
> -Original Message- > From: Chas. Owens [mailto:[EMAIL PROTECTED] > Sent: Friday, January 18, 2008 9:07 PM > To: Kevin Viel > Cc: beginners@perl.org > Subject: Re: Hash of hashes? > > On Jan 18, 2008 6:06 PM, Kevin Viel <[EMAIL PROTECTED]> wrote: > > This I cannot get my mind around... >

Re: Perl script to lookup IP addresses

2008-01-21 Thread pallav
Thank you very much for the information. I will look into this. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/

extracting data from websites

2008-01-21 Thread jm
i need to extract data from websites, tracking the status of various shipments. i'm aware of the LWP module but wondered how many other modules may be useful. i've just glanced over the LWP documentation (not in-depth at all yet) and i'm not sure if it will actually allow me to pull the bits of d

Re: Perl script to lookup IP addresses

2008-01-21 Thread Chas. Owens
On Jan 21, 2008 11:43 AM, Durick, JD <[EMAIL PROTECTED]> wrote: > In addition to GeoIP offered by CPAN, if your company/university is > paying for it, you might want to take a look at a commercial db called > MaxMind (www.maxmind.com) which offers a static geolocater database > complete with variou

RE: Perl script to lookup IP addresses

2008-01-21 Thread Durick, JD
In addition to GeoIP offered by CPAN, if your company/university is paying for it, you might want to take a look at a commercial db called MaxMind (www.maxmind.com) which offers a static geolocater database complete with various APIs, one being perl. I believe akamai has another but that one is qui

Re: Perl script to lookup IP addresses

2008-01-21 Thread Chas. Owens
On Jan 21, 2008 2:38 AM, pallav <[EMAIL PROTECTED]> wrote: > I have some research tools that I make available for download. When a > person downloads it, I record the IP address. > > I wanted to know if perl has some functions/utilities where I can > supply these IP address to get an approximate lo

Perl script to lookup IP addresses

2008-01-21 Thread pallav
I have some research tools that I make available for download. When a person downloads it, I record the IP address. I wanted to know if perl has some functions/utilities where I can supply these IP address to get an approximate location of the IP address. Most of the downloads are usually from res

RE: help me in reading the xml file

2008-01-21 Thread Allam Reddy, Thomas
Thanks Chas Owens for your detailed explanation. It helped me a lot Thanks, Thomas Reddy -Original Message- From: Chas. Owens [mailto:[EMAIL PROTECTED] Sent: Friday, January 18, 2008 9:01 PM To: Allam Reddy, Thomas Cc: beginners@perl.org Subject: Re: help me in reading the xml file On