chapter 7  exploring data with reports

... returns a pointer to a data structure with all the HTML tags and text parsed out and remembered in order Now we can use another function called traverse(), which operates on this data structure and ... this simple program that will just prompt for the word and go look it up without all that extra hassle Anyone familiar with the xwebster client for the X Window System will find xword to be vaguely ... place We want lots of room to type, so we set it up with a default width of 40 Also note that we are storing anything that's been entered with the Entry widget in a global variable called $word...

Ngày tải lên: 07/11/2013, 09:15

... we need to delimit it from the prior text (which we insert into our text widget with the flush_text( ) function) with a few returns Note that flush_text( ) takes the same arguments as any of our ... to call our function, do_search( ), with the URL we extracted from the HTML tag Then we insert the text for the link into the text widget, and associate it with the tag we just built Figure 7-2 ... every few minutes For this example, we'll interact with the Federal Express tracking page When you ship a package via FedEx, they keep track of it with a shipping number (also called an airbill number)...

Ngày tải lên: 07/11/2013, 09:15

... letter, it would scroll to the first entry starting with that letter Or you could put an additional entry, and search for any word starting with those characters: my $response_f = $mw->Frame; ... today for the date field The FedEx web page expects it in the form of "DayMonthYear", and digits with only one number require a leading zero The string returned from localtime( ) gives us the correct ... The loop_query( ) subroutine gets called when the Loop button is pressed We query the web site with the information entered, then set up Tk to loop again in $query_interval minutes To let the...

Ngày tải lên: 07/11/2013, 09:15

... who's going to spend a significant amount of time working with mod_perl It fills a different niche in the developer's mental toolkit With Apache 2.0 and mod_perl 2.0 on the horizon as this is ... 1.22 or greater In addition, your mod_perl should have been compiled with PERL_METHOD_HANDLERS=1 and PERL_TABLE_API=1, or with EVERYTHING=1 We expect Mason to work immediately under the 1.x ... first directive tells Apache that files ending with mhtml have a contenttype of text/html The LocationMatch section says that all URIs ending with mhtml will be handled by Mason This configuration...

Ngày tải lên: 14/12/2013, 12:15

... them, and bring them up automatically the next time we start the program Here's the final code, with most of the mentioned features represented: #!/usr/bin/perl -w ################################################### ... command-line options ourselves As you can see from our usage statement, we've got quite a few to deal with Automode is the term we use when the program loops and checks each web site every n minutes ... exactly as it did the last time we ran it except that the program will have updated the list of sites with the current status $entry->focus; &do_automode if ($auto_mode); MainLoop; Off it goes! Now...

Ngày tải lên: 14/12/2013, 13:15

... Contents  Sources of Data  Sampling  Interview  Coding Responses  Existing Statistical Data  Ethical Issues in Collecting Data SOURCE OF DATA Informal interviews Observations ... method for obtaining data Open- ended interview  Starts with list of topics to be covered, a clear sense of what kinds of information are wanted  Interviewer follows up each lead with neutral probes ... systems: items, procedures for data entry, data checking, etc => Rules have to be worked out in advance that alert the evaluator to any pending changes ,when, how Data from other Institutions...

Ngày tải lên: 27/03/2016, 14:41

... which a binding is associated with a bound element It is essentially a way of telling the element which binding to use Detachment is the process of removing that link and with it, the binding display ... chapter 7.1.2 An XBL Document XBL documents are files saved with an xml filename extension Most bindings implement XUL content and behavior with script, so XBL files reside in your XUL application's ... in Mozilla, HTML is another valid and popular binding format Using the XBL with HTML combination can be advantageous With it, web pages (rendered in Mozilla) can be more feature-rich and move...

Ngày tải lên: 14/12/2013, 12:15

... the tag and encapsulated within the element They usually provide a binding object with a specific function like copying and saving some data or showing and hiding widget ... dumpString('hello', 'there!');"/> Using the with the XML parser Having characters ... are not escaped Using with large portions of JavaScript in a binding can improve performance and minimize bugs Methods were designed for language neutrality with the type attribute and...

Ngày tải lên: 14/12/2013, 12:15

... getBindingParent(element) For use only within a binding, this method returns the bound element - i.e., the top-level node of the binding, when passed an element within a binding var listbox = document.getBindingParent(this); ... interfaces in XBL, illustrates how they work, and explains the core concepts involved in XBL interaction with the DOM, such as scope characteristics and insertion points 7.4.1 The XBL DOM Interfaces XBL ... interface methods 7.4.1.1 DocumentXBL methods The DocumentXBL interface gains access to and interacts with an XBL document The methods of this interface are as follows: loadBindingDocument(URL) XBL...

Ngày tải lên: 14/12/2013, 12:15

... button can display text with the value attribute and an image with the src attribute Usually, this is sufficient, and you can color the button and change the text font with CSS But you may want ... with the XUL element If you use this "embedded" syntax, wrap your script in a CDATA section so it gets interpreted and executed properly: with extra content that can be provided this way 7.4.4.2 Selective inclusion Sometimes multiple siblings are located within a box in the XUL, but you want...

Ngày tải lên: 14/12/2013, 12:15

... connect to a data source, retrieve selected data, and manipulate data ! Retrieving Data from a Database Explain that in an enterprise solution, it is critical that developers access databases efficiently ... _ "DATA SOURCE=HTTP://DataServer/Sales/" Module 7: Universal Data Access with ADO 2.5 33 Or you can specify a URL by using a connection string: objCon.Open "URL=HTTP://DataServer/Sales/" As with ... Data Access with ADO 2.5 Using ADO Objects ! Connection $ ! Command $ ! Records returned from a data source Record $ ! Command execution specific to data source Recordset $ ! Active session with...

Ngày tải lên: 21/12/2013, 19:15

... frames without permitting further transmission (Receive Not Ready) Must send a normal acknowledge to resume If duplex, use piggybacking If no data to send, use acknowledgement frame If data but ... and replies with acknowledgement Source waits for ACK before sending next frame Destination can stop flow by not send ACK Works well for a few large frames Fragmentation Large block of data may ... Based on sliding window If no error, ACK as usual with next frame expected Use window to control number of outstanding frames If error, reply with rejection Discard that frame and all future frames...

Ngày tải lên: 16/02/2014, 08:20

... Introduction to Data Mining 35 OLAP Operations: Data Cube The key operation of a OLAP is the formation of a data cube A data cube is a multidimensional representation of data, together with all possible ... fields There are a number of data analysis and data exploration operations that are easier with such a data representation © Tan,Steinbach, Kumar Introduction to Data Mining 31 Creating a Multidimensional ... (OLAP) © Tan,Steinbach, Kumar Introduction to Data Mining Iris Sample Data Set Many of the exploratory data techniques are illustrated with the Iris Plant data set – Can be obtained from the UCI Machine...

Ngày tải lên: 15/03/2014, 09:20

... more passes over the data – May miss some potentially interesting cross© Tan,Steinbach, Kumar Introduction to Data Mining 25 level association patterns Sequence Data Sequence Database: Object A ... computational chemistry, bioinformatics, spatial data sets, etc Homepage Research Artificial Intelligence Databases Data Mining © Tan,Steinbach, Kumar Introduction to Data Mining 48 Graph Definitions a a ... Tan,Steinbach, Kumar Events 2, 3, 6, 1 4, 5, 7, 8, 1, 1, 1, 8, Introduction to Data Mining 26 Examples of Sequence Data Sequence Database Sequence Element (Transaction) Event (Item) Customer Purchase...

Ngày tải lên: 15/03/2014, 09:20

... preOrderTraverse (refOperation(ref Data )) inOrderTraverse (refOperation(ref Data )) postOrderTraverse (refOperation(ref Data )) • Breadth-First ... (ref DataOut ) Insert (val DataIn ) Remove (val key ) Depend on various types of binary trees (BST, AVL, 2d-tree) Retrieve (ref DataOut ... Contiguous Implementation of Binary Tree Record Data Parent Flag End Record BinaryTree Data End BinaryTree Data A B E C F G H Parent - A B A C C...

Ngày tải lên: 15/03/2014, 17:20

... new DataColumn[] {Cid}; DataRow Class A DataRow object provides access to one row of data in a DataTable DataSet A DataTable's DataRow objects contain all the data in the DataTable Create DataTable ... DataTable DataRow DataColumn Populating DataSet-Manual Construct your own DataSet (schema) 1 Create Dataset Add DataTable(s) Add DataColumn(s) to DataTable Define datatable schema Fill Data into DataTable(s) ... contents Copy DataSet contents Create a typed DataSet Create DataTables Manage data within a DataTable Create and use DataViews Represent data in a DataSet by using XML (NO) Use the OleDbDataAdapter...

Ngày tải lên: 13/05/2014, 12:19

... every stock, index, or future every day If we keep that data in a database, then it is a simple matter to compare those past readings with the current reading Suppose, for example, as in the ... this information with more reading if you are unfamiliar with these concepts Furthermore, remember the number one principle of trading: use only trade systems and strategies with which you are ... prices in order to compare the current implied volatility levels with what you Team-Fly® MY FAVORITE STRATEGY 223 found on our free data page in order to verify that the options are still cheap...

Ngày tải lên: 03/07/2014, 19:20

... Technical Data Fundamental Data Intermarket Data The next phase in the evolution of technical market analysis will be “synergistic market analysis,” combining technical, intermarket and fundamental data ... Edwards and Magee The universally acclaimed investor's classic has now been updated with the latest data and references With more than 800,000 copies in previous editions, this is the definitive reference ... incorporating fundamental data inputs into VantagePoint Obviously, there will never be a financial crystal ball that traders can gaze into to see what the markets will in the future with 100% accuracy...

Ngày tải lên: 04/07/2014, 13:20

... 106 FINANCIAL MODELING WITH CRYSTAL BALL AND EXCEL FIGURE 7.1 Spreadsheet segment to model annuity with deterministic cash flows of −$100 at the end of Year 0, ... and the correlations from past projects using company data Many firms have enterprise resource planning (ERP) systems from which historical data can be retrieved to parameterize the simulation ... demonstrates how to calculate distributions of CLV for customer segments with different retention rates The model in Figure 7.17 is based on data given for the Buford Electronics case study presented in...

Ngày tải lên: 05/07/2014, 18:20