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• python count number of times the date has appeared

  - by Rajeev

  From the following array,how to count the dates for the number of times it has occured in the array.The output should be in the following format [date,count] new_dates = [['2012-12-02', 14],['2012-12-03',2],....] Input: dates = [['2012-12-02', 17], ['2012-12-01', 5], ['2012-12-02', 15], ['2012-12-02', 8], ['2012-12-02', 17], ['2012-12-02', 15], ['2012-12-11', 6], ['2012-12-02', 1], ['2012-12-02', 9], ['2012-12-02', 11], ['2012-12-03', 13], ['2012-12-03', 10], ['2012-12-02', 18], ['2012-12-02', 11], ['2012-12-02', 12], ['2012-12-05', 14], ['2012-12-02', 3], ['2012-12-02', 6], ['2012-12-06', 10], ['2012-12-07', 0], ['2012-12-08', 3], ['2012-12-09', 12], ['2012-12-02', 6]]

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• java: save and retrieve objects as objects rather than text information?

  - by kevinfong88

  I have a program that actually stores inputted data into an array. These data will then be displayed through a text file from the array. I was asked to modify these program so that it is saving and retrieving objects as objects rather than a text information and i don't really know how to do that.. Need some advice thanks.

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• understanding the arguments passed to hasColumn() in Doctrine

  - by ajsie

  Im using Doctrine and i dont quite understand this code here: $this->hasColumn('id', 'integer', 8, array( 'type' => 'integer', 'length' => 8, 'fixed' => false, )); what is the 2nd and 3rd argument in hasColumn for? the 2nd is the type and the 3rd the length? if so, why do we specify them again in the array?

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• writing into a file in c.

  - by mekasperasky

  i have an char array b[20] which i want to write into a file . After every iteration the value of b[20] changes , so i would like to write the string in each line of the file in each iteration . So how can i change a new line in a file and also put in a array of character?

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• How can I determine if a composite format string is invalid?

  - by Tinister

  Per the documentation, String.Format will throw a FormatException if either (A) the format string is invalid or (B) the format string contains an index that cannot be found in the args array. I want to be able to determine which (if either) of those conditions fail on any arbitrary string and array of arguments. Is there anything that can do that for me? Thanks!

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• C++ Arrays manipulations (python-like operations)

  - by Linai

  Hi Guys, I'm trying to figure out the best C++ library/package for array manipulations in a manner of python. Basically I need a simplicity like this: values = numpy.array(inp.data) idx1 = numpy.where(values > -2.14) idx2 = numpy.where(values < 2.0) res1 = (values[idx1] - diff1)/1000 res1 = (values[idx2] - diff2)*1000 In python it's just 5 lines, but the simplest way in C++ i can think of is quite a number of nested loops. Pls advise..

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• Pass entire $_POST variable to popup

  - by Brian

  I have a PHP webpage that takes which accepts a rather large POST array. I have a button on the page that opens a PHP popup window. Is there a convenient way to pass the entire $_POST array to the popup? Edit: It is an entirely different page. I open it with JavaScript: window.open

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• Symfony: there is a "0" (zero) in a sfWidgetFormChoice

  - by user248959

  Hi, i want to show a select which options are the character '-' and a range of integers. I have this: $years = range(14,130); new sfWidgetFormChoice(array('choices' => array_merge(array('' => '-',array_combine($years,$years))); The problem: between the '-' and the range of integers there is a "0" (bold and italic). Any help? Regards Javi

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• Is () requested for invoking a Flex ActionScript constructor?

  - by Steve Kuo

  In Flex ActionScript, a new object can be instantiated via the parameterless constructor with or without (). Example: var array:ArrayCollection = new ArrayCollection() or var array:ArrayCollection = new ArrayCollection Is there are difference between these two? Is one preferred over the other?

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• a problam with char** in c

  - by sagi

  hello i have an char** arr which is an array of strings and i want to erase the 2 last cell of the array or maybe to create a new char** but without those last 2 cells thank you very much.

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• Setting end-of-line character for puts

  - by Dom De Felice

  I have an array of entries I would like to print. Being arr the array, I used just to write: puts arr Then I needed to use the DOS format end-of-line: \r\n, so I wrote: arr.each { |e| print "#{e}\r\n" } This works correctly, but I would like to know if there is a way to specify what end-of-line format to use so that I could write something like: $eol = "\r\n" puts arr UPDATE I know that puts will use the correct line-endings depending on the platform it is run on, but I need this because I will write the output to a file.

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• Do I have to start from beginning?

  - by Knowing me knowing you

  If I have: std::size_t bagCapacity_ = 10; std::size_t bagSize = 0; A** bag = new A*[bagCapacity_]; while (capacity--) { bag[capacity] = new A(bagSize++);//**here I'm loading this array from the end is it ok?** } And also can I delete those object from starting at the end of the array? while(capacity--) { delete bag[capacity]; } Question in a code.

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• How can I change the `invalid` message of doctrine?

  - by roddik

  Hi. I'm using symfony with doctrine and I make a registration form. Email field is declared unique and if I set it to already existing one, I get the message An object with the same "email" already exist.. I use the following validator: $this->validatorSchema['email'] = new sfValidatorEmail(array('required' => true), array('invalid' => 'Does not seem to be a proper email')); How can I change the "already exists" message? Thanks

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• At which n does binary search become faster than linear search on a modern CPU?

  - by joeforker

  Due to the wonders of branch prediction, a binary search can be slower than a linear search through an array of integers. On a typical desktop processor, how big does that array have to get before it would be better to use a binary search? Assume the structure will be used for many lookups.

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• Counting substring occurrences in string[]

  - by shaon-fan

  Given a String array such as this: string[]={"bmw"," ","1bmw"," "}; I need to count how often the substring bmw occurs in that array. In this example it occurs 2 times. How do I write that in C#?

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• Removing "duplicate objects"

  - by keruilin

  Let's say I have an array of objects from the same class, with two attributes of concern here: name and created_at. How do I find objects with the same name (considered dups) in the array, and then delete the duplicate record in the database. The object with the most-recent created_at date, however, is the one that must be deleted.

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• applying cheks.

  - by bhavna raghuvanshi

  i need to apply check so that user cannot enter alphabet or negative value as length of array and alphabets as elements in an array. pls help....

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• Trying to make models in Kohana, relations problem.

  - by Asaf

  I have a table of Hits, Articles and Categories Now, a Hit belongs_to an Article/Category (depends on where it was done). so I have a column on Hits table with the name 'parenttype' That tells me 'Article' or 'Category'. I wrote in the Hit model (extends ORM) protected $_belongs_to= array( 'page' => array('model'=> $this->parenttype) ); Now it complains about $this-parenttype not being expected?

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• Iterate through html table using jQuery, converting the data in the table into JSON

  - by rama-m

  I came across a case where I have to convert html table data into json. In this process I have to iterate through table and convert one by one(row) into array and then convert the whole array into json? Need help in iterating through table(each ow and column)?

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• Using jQuery to do "does contain"

  - by danit

  I have an array of strings, I want to use jQuery to see if a particular string is contained within the array? Can i do this with jQuery?

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• php array_filter without key preservation

  - by pistacchio

  Hi, if i filter an array with array_filter to eliminate null values, keys are preserved and this generated "holes" in the array. Eg: The filtered version of [0] => 'foo' [1] => null [2] => 'bar' is [0] => 'foo' [2] => 'bar' How can i get, instead [0] => 'foo' [1] => 'bar' ? Thanks

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• is there any way to make my jquery search better ?

  - by From.ME.to.YOU

  Hello var myarr= Array('test1','test2','test3'); var searchTerm = "test"; var rSearchTerm = new RegExp( searchTerm,'i'); $.each(myarr, function(i) { if (myarr[i].match(rSearchTerm)) { //item found } });? guys is there any way to make my search algorithm better ? "myarr" will be a big array so i want to make sure that i'm using the best way to search in it thanks alot

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• How to find sum of elements from given index interval (i, j) in constant time?

  - by Rajendra

  Given an array. How can we find sum of elements in index interval (i, j) in constant time. You are allowed to use extra space. Example: A: 3 2 4 7 1 -2 8 0 -4 2 1 5 6 -1 length = 14 int getsum(int* arr, int i, int j, int len); // suppose int array "arr" is initialized here int sum = getsum(arr, 2, 5, 14); sum should be 10 in constant time.

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• Storing Formatted Data in C

  - by rangerdanger16

  Im trying to add variables to a C char array. Also I have tried sprintf, but it is causing a few other issues within my program. I am looking to do something like this: char* age = "My age is = " + age; I am planning on sending the char array to a socket using send() Thanks

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• Python: Closing a for loop by reading stdout

  - by user1732102

  import os dictionaryfile = "/root/john.txt" pgpencryptedfile = "helloworld.txt.gpg" array = open(dictionaryfile).readlines() for x in array: x = x.rstrip('\n') newstring = "echo " + x + " | gpg --passphrase-fd 0 " + pgpencryptedfile os.popen(newstring) I need to create something inside the for loop that will read gpg's output. When gpg outputs this string gpg: WARNING: message was not integrity protected, I need the loop to close and print Success! How can I do this, and what is the reasoning behind it? Thanks Everyone!

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