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  • How can I maintain a sorted hash in Perl?

    - by srk
    @aoh =( { 3 => 15, 4 => 8, 5 => 9, }, { 3 => 11, 4 => 25, 5 => 6, }, { 3 => 5, 4 => 18, 5 => 5, }, { 0 => 16, 1 => 11, 2 => 7, }, { 0 => 21, 1 => 13, 2 => 31, }, { 0 => 11, 1 => 14, 2 => 31, }, ); I want the hashes in each array index sorted in reverse order based on values.. @sorted = sort { ........... please fill this..........} @aoh; expected output @aoh =( { 4 => 8, 5 => 9, 3 => 15, }, { 5 => 6, 3 => 11, 4 => 25, }, { 5 => 5, 3 => 5, 4 => 18, }, { 2 => 7, 1 => 11, 0 => 16, }, { 1 => 13, 0 => 21, 2 => 31, }, { 0 => 11, 1 => 14, 2 => 31, }, ); Please help.. Thanks in advance.. Stating my request again: I only want the hashes in each array index to be sorted by values.. i dont want the array to be sorted..

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  • I call session_start() the script hangs and nothing happens

    - by shovon
    I am running php5, however as soon as I call session_start() the script hangs and nothing happens. Is anyone else experiencing this problem, or am I doing something incorrectly? I am using session_start() on index.php and for some reason sometimes it'll fail. No warnings, no errors, no notices, not even after prepending error_reporting(E_ALL) and ini_set('display_errors', TRUE) before session_start() do I see anything, it just plain dies.

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  • Advice on reading indexes

    - by London
    Hello, I'm trying to figure out the right way to read lucene index only once whilst running the application multiple times, how can I do that in java? Because indexed data will not change so reading them each time would not be necessary. Can someone explain me the logic of it reading them only once? thank you

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  • mySQL: How many rows in a table before performance is affected?

    - by Industrial
    Hi everybody, Is there a "known limit" for columns & rows in a mySQL table that when passed, it can be safe to say that performance is severely affected? I've think that I had heard that there is a "golden number" that you really dont want to exceed in either columns or rows in a table. - Or is it all about the size of the index and available RAM + CPU on the server? Thanks!

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  • handling large number

    - by klw
    Hello, this is actually an problem question from project euler site http://projecteuler.net/index.php?section=problems&id=3 Anyway I'm not out after the solution, but I probably guess you will know what my approach is. To my question now, how do I handle numbers exceeding unsigned int? Is there a mathematical approach for this, if so where can I read about it?

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  • importing class and its function from another file [Python]

    - by user343934
    Hi everyone, I am having little bit problem in importing classes in python. My work flow goes like this -index.py ---class template: ------def header(): ------def body(): ------def footer(): -display.py I want to call function header(), body() and footer () in my display.py page. Will anyone make me clear about this issue in python. Thanks for your concern.

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  • Ruby on Rails Problem PotionStore

    - by David Schiefer
    Hello, I am trying to install the PotionStore on my Mac OS X 10.6 server with Ruby on Rails 3 installed. Upon launching the server on port 3000 and pointing safari to this address, I get this: NameError in Store/orderController#index uninitialized constant ActiveRecord::ConnectionAdapters::PostgreSQLAdapter::PGconn What does this mean? I'm not too advanced with Ruby on Rails, so this throws me a bit.

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  • Does GCC have a built-in compile time assert?

    - by VladLosev
    Our existing compile-time assert implementation is based on negative array index, and it provides poor diagnostic output on GCC. C++0x's static_assert is a very nice feature, and the diagnostic output it provides is much better. I know GCC has already implemented some C++0x features. Does anyone know if static_assert is among them and if it is then since what GCC version?

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  • redirect wont work in Chrome

    - by Camran
    I have a form on my website. When this form is filled out, it is then validated by a javascript validation function. At the bottom of this function I have this piece of code: window.location="../index.html"; This wont work on Chrome, but does work in Firefox. My Q is, how can I make this simple redirect work on all (most) browsers? Thanks

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  • Define and send a JSON object array

    - by Eric
    I'm looking for a way to define and send a JSON object array. I've figured out how to define a single JSON object, turn it into a string and send it, but what about an array of this type? Probably something simple I'm overlooking... var myColumnSetting = { "ColumnName": name, "ColumnIndex": index } convert it to a string var myJSONText = JSON.stringify(myColumnSetting, false);

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  • HashMap.containsValue - What's the point?

    - by Frederik
    I've got a HashMap and I need to fetch an item by its integer value. I notice there's a containsValue() function, but it would appear I still have to iterate through the map to find the correct index anyway. My question is; why use containsValue() if I'm required to traverse it afterwards? Also, am I missing the point completely? ;-)

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  • How to create multiple arrays from 2? (actionscript, flash)

    - by Ole Jak
    so I have array like ParamsArray {a,b,a,a,...b} (so i have 2 kinds of parameters in this array - a and b) (here I have N strings) and another array - DataArray {data1,data2,...dataN} (different strings) (here I have N strings) Now I created 2 new arrays ArrayA and ArrayB and I wanta want to feel arra ArrayA with all data (strings) from DataArray which correspond (by index in array) to a param in ParamsArray. and so strings that correspond to param B should appear in ArrayB. How to do such thing in actionscript? (Please - I need a code example)

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  • Sanitize GET query with Apache

    - by Freelancer
    Hello everyone, I see there's a lot of talk here about how to go about sanitizing data. Could it be as simple as adding this rewrite rule to .htaccess? RewriteRule ^([\w\-]+)$ index.php?page=$1 To my understanding this will allow only letters, numbers, _ and - in $1, am I right? If you add to this usage of prepared statements for SQL queries, it should be pretty proof, is that right? Somehow feels like too easy to be true, am I missing something, any ways to firm it up?

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  • How to merge multiple arrays in pairs

    - by user3688059
    I have a problem with "pairing" arrays into one (by index). Here is an example: INPUT: inputArray = [ [0, 1, 2, 3, 4], [2, 3, 5, 7, 8], [9, 6, 1] ] OUTPUT: outputArray = [ [0,2,9], [1,3,6], [2,5,1], [3,7,chooseRandom()], [4,8,chooseRandom()]] Questions: 1) How to avoid out of range problem 2) How to write chooseRandom() to choose N neighbour I'm using python but feel free to share your thoughts in any language.

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  • codeigniter not being able to get the full param from url?

    - by bnelsonjax
    Im having a weird issue that i cant seem to fix. It's dealing with viewing a company and adding a location to that company. when viewing a company, my url would look like this: domain.com/company/view/415 So clearly 415 is the ID of company, the company shows up correctly on my company view page. Now comes the weird part. when clicking on an "Add Location" link, which would take me to : domain.com/location/add/415 so once again this should be saying Location / Add / 415 (company ID 415) on this page, if i do it will echo 4 (instead of 415...the company id) if the company id is 754, the php echo $data['id'] would echo 7 (instead of 754). So its stripping the last 2 numbers off the Company ID. Here is my controller: public function add($id) { if (isset($_POST["add"])) { $this->Equipment_model->add($id); redirect('company/view/'.$id); } $data['locations'] = $this->Equipment_model->get_locations($id); $data['data'] = $id; $this->load->view('templates/header'); $this->load->view('equipment/add', $data); $this->load->view('templates/footer'); } here is my .htaccess RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-l RewriteCond $1 !^(index\.php|css|font|img|js|themes) RewriteRule ^(.*)$ index.php/$1 [QSA,L] Because my php/codeigniter experience is limited, maybe my terminology is off, so i created a video and uploaded it to twitch, here is the link if you wanna see what im talking about: http://www.twitch.tv/bnelsonjax/b/420079504 if anyone could help i'd be so grateful, I've been stuck on this for about a week. UPDATE ok now we are getting somehwere, when i change controller to: public function add($id) { if (isset($_POST["add"])) { $this->Equipment_model->add($id); redirect('company/view/'.$id); } $data['locations'] = $this->Equipment_model->get_locations($id); $data['data'] = $id; $data['cid'] = $id; $this->load->view('templates/header'); $this->load->view('equipment/add', $data); $this->load->view('templates/footer'); $this->output->enable_profiler(TRUE); } if i add the following to the view page: <?php echo $data['id']; ?> it echos: 7 this one: <?php echo $cid; ?> it echos 766 (CORRECT ONE) this one: <?php echo $data['cid']; ?> it echos 7 my question then is why if the controller show: $data['data'] = $id; $data['cid'] = $id; does only the one thats $data['cid'] echo correctly?

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  • How can I add a tab in jquery-ui Tabs and then select it?

    - by Bob
    I understand how to add a jquery-ui tab, and I understand how to select a tab by index number, but how can I both add a tab and then select it? For example, in the following demo you can add a tab, but then you have to click on it for it to be displayed: http://jqueryui.com/demos/tabs/#manipulation I'm on jquery 1.4.2 and jquery-ui 1.8rc3.

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  • R: How to replace elements of a data.frame?

    - by John
    I'm trying to replace elements of a data.frame containing "#N/A" with "NULL", and I'm running into problems: foo <- data.frame("day"= c(1, 3, 5, 7), "od" = c(0.1, "#N/A", 0.4, 0.8)) indices_of_NAs <- which(foo == "#N/A") replace(foo, indices_of_NAs, "NULL") Error in [<-.data.frame(*tmp*, list, value = "NULL") : new columns would leave holes after existing columns I think that the problem is that my index is treating the data.frame as a vector, but that the replace function is treating it differently somehow, but I'm not sure what the issue is?

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  • jQuery select last word after = (equal symbol)

    - by Jonathan
    I'm using $(this).attr("href"); to select the href attribute value of the clicked element, but I need to select only the part after the last '=' symbol. Example: href="index.php?con=123&id=123&sel=heyhey" I only need the last part of the href that is 'heyhey' How can I select this??

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