chapter 5  iterative processing with loops

... there are two problems with this simple design technique First, the impulse response for a filter with any sharpness to its frequency response is infinitely long Working with an infinite number ... width of each lobe decreases with an increase in M This implies that with increasing M, ripples in H H …!† around the point of discontinuity occur more closely but with no decrease in amplitude ... bandpass filter with passband w1 ! w2 The argument `filtertype' specifies a filter type, where `high' for a highpass filter with cut-off frequency Wn, and `stop' for a bandstop filter with cut-off...

Ngày tải lên: 23/10/2013, 22:15

... useful routines within the LWP library  At the end of the chapter, we'll present some examples that glue together the different components of LWP Some Simple Examples LWP is distributed with a very ... in the for loop: for (@{ $parsed_html->extract_links( ) }) { and dereference the array within the list with: $link = $_->[0]; After the deferencing, we have direct access to the hyperlink's location, ... showlink printed out the hyperlinks exactly as they appear within the HTML But in some cases, you want to see the link as an absolute URL, with the full glory of a URL's scheme, hostname, and path...

Ngày tải lên: 24/10/2013, 08:15

... URI with certain characters replaced with % followed by two hexadecimal digits The first parameter can be a text string, like "http://www.ora.com", or an object of type URI::URL When invoked without ... invoked with no parameters, this returns the user for the URL defined in the object When invoked with a parameter, the object's user is assigned to that value $url->password( ) When invoked with ... invoked with a parameter, the object's password is assigned to that value $url->host( ) When invoked with no parameters, this returns the hostname in the URL defined in the object When invoked with...

Ngày tải lên: 24/10/2013, 08:15

... require actual shared memory segments and can be done with modules like IPC::Shareable ), or among multiple components (this can easily be done with global variables) It is also unwise to use variables ... subcomponent Note that the component is assigned a name inside the tag (the name often starts with a period, purely by convention) and that you use the regular component-calling mechanisms ($m->comp() ... the method call Sharing Data Among Component Sections By default, the scope of variables created within an block, a Perl line, or any other Mason markup sections is the entire component...

Ngày tải lên: 14/12/2013, 12:15

... structures, again a taglib-esque idea The answer is yes, with some caveats We say "with caveats" because due to the way this feature is implemented, with closures, you have to jump through a few hoops ... of the components become very simple If you get familiar with Mason's inheritance model, you can create very sophisticated applications with a minimum of redundancy and hassle Subrequests Once ... href="\Q$uri\E[^"]*">([^

Ngày tải lên: 14/12/2013, 12:15

... DOM properties associated with a XUL window and the other XUL elements, but you can see all of them if you run the example Analyzing output like this can familiarize you with the interfaces available ... pref.SetBoolPref(PREF_STRING, true); } catch(e) {} This code is necessary only if you are doing development with a release distribution build of Mozilla If you are using a debug or nightly build, this PREF ... attribute," which is the value of the attribute foo You can also add or change existing attributes with the setAttribute DOM method 5.2.3.4 setAttribute The setAttribute method changes an existing...

Ngày tải lên: 14/12/2013, 12:15

... 5.3 Adding Scripts to the UI Once you are comfortable with how JavaScript works in the context of the user interface layer and are familiar with some of the primary DOM methods used to manipulate ... the window and button events in Example 5-5 carry out some inline script, there is a variation with the onchange handler attached to the menulist element onchange contains a JavaScript function ... for use on XUL elements (and HTML elements) Appendix C has a full listing of these events along with explanations The following subset shows the potential for script interaction when the UI uses...

Ngày tải lên: 14/12/2013, 12:15

... your application The setAttribute method can also be used to update the element's class attribute with which style rules are so often associated toolbarbutton-1 and button-toolbar are two different ... Using the createElement method in XUL lets you accomplish things similar to document.write in HTML, with which you can create new pages and parts of a web page In Example 5-9, createElement is used ... generate a list of menu choices based on input data or user feedback Try this example and experiment with different sources of data, such as a menu of different auto manufacturers, different styles...

Ngày tải lên: 14/12/2013, 12:15

... follows: js> fu.spawn('/usr/X11R6/bin/Eterm'); This command spawns a new Eterm with no argument To open an Eterm with vi, you could also use this code: js> fu.spawn('/usr/X11R6/bin/Eterm', ['e/usr/bin/vi']); ... security boundaries) loaded in Mozilla instantiates a Mozilla sound component and plays a sound with it Go ahead and try it Example 5-11 Scripting components from HTML Sound Service ... component by contract ID All XPCOM objects must have a contract ID that uniquely identifies them with the domain, the component name, and a version number ["@mozilla.org/sound;1"], respectively...

Ngày tải lên: 14/12/2013, 12:15

... Conditionals and Loops • Now we will examine programming statements that allow us to:  make decisions  repeat processing steps in a loop • Chapter focuses on: ... logical operators can form complex conditions if (total < MAX+5 && !found) System.out.println ( "Processing "); • All logical operators have lower precedence than the relational operators • Logical ... false false © 2004 Pearson Addison-Wesley All rights reserved 5-17 Short-Circuited Operators • The processing of logical AND and logical OR is “short-circuited” • If the left operand is sufficient...

Ngày tải lên: 15/03/2014, 11:20

... dataflow modeling,     always active Left hand side of assignment must be a net Using expression with operators & operands Delays on a net can be defined in the assign statement, implicit continuous...

Ngày tải lên: 16/03/2014, 15:20

... to the list 4- 39 © 2009 Types of List Controls • ListBox tool – lst prefix – Simple List Box with/ without scroll bars • ComboBox tool – cbo prefix – List may allow for user to add new items –...

Ngày tải lên: 13/05/2014, 11:31

... MessageBox.Show(ex Message); } Now that you know how to work with entities and query them, the next chapter builds on that knowledge by showing you how to work with stored procedures Several new features have ... automatically as you work with the EDM, although you can still access the associations if you really need to The great news is that as a developer, you don’t need to work with them directly in most ... of the hardest concepts for developers to grasp, when dealing with the EF, is that of relationships and their use and application within the EDM This confusion makes it difficult for developers...

Ngày tải lên: 18/06/2014, 17:20

... argument doesn’t seem to hold water any more with most portfolio managers, who were burned so badly in 1987 But it does point out a real problem with buying options for insurance—it’s expensive ... stocks is to simultaneously sell some out-of-the-money calls This can be done either with index calls or with individual equity options against the stocks that are in the portfolio If you sell ... cost is cheaper with the longer-term OBX put options We alluded earlier to the fact that your portfolio may not perform exactly like the index that you have selected to hedge it with For example,...

Ngày tải lên: 03/07/2014, 19:20

... predicted Low on a day expected to be up, with exits near the predicted High This allows day traders to sell rallies within an expected downtrend or buy dips within an expected uptrend, one or more ... direction within the next two days • The fourth network forecasts a 10-day moving average of closes for four days in the future, to indicate the expected Medium-Term trend direction within the ... 10-day moving average A simple moving average crossover strategy with a twist — it compares a predicted 10-day moving average with an actual 10-day moving average Source: VantagePoint Intermarket...

Ngày tải lên: 04/07/2014, 13:20

... at a time, but so with care as they become hard to read when too many forecasts are included DECISION TABLE WITH TWO DECISION VARIABLES You can also use the Decision Table tool with two decision ... FINANCIAL MODELING WITH CRYSTAL BALL AND EXCEL FIGURE 5.21 Step in using the Decision Table tool with the Project.xls model FIGURE 5.22 Results from using the Decision Table tool with the Project.xls ... correlated with another assumption, in this case the assumption in cell A9 During any simulation run, the correlation coefficient is the value in cell D5, which is what we will vary with the Decision...

Ngày tải lên: 05/07/2014, 18:20

... endswith(,) == True: return ',' if endswith(,) == False: if endswith(the) == True: return 'AT' if endswith(the) == False: if endswith(s) == True: if endswith(is) == True: return 'BEZ' if endswith(is) ... 'VBZ' if endswith(s) == False: if endswith(.) == True: return '.' if endswith(.) == False: return 'NN' Here, we can see that the classifier begins by checking whether a word ends with a comma—if ... nltk.Index is a defaultdict(list) with extra support for initialization Similarly, nltk.FreqDist is essentially a defaultdict(int) with extra support for initialization (along with sorting and plotting...

Ngày tải lên: 07/08/2014, 04:20

... storage tank with a volume of 20 m3 for the total quantity of margines produced; settling tank with a volume of m3; UASB reactor with a working volume of m3, additionally equipped with a highperformance ... inoculation (untreated OMW): TU ¼ 156; after fermentation with Geotrichum: TU ¼ 64; after fermentation with Azotobacter: TU ¼ 32; after fermentation with Aspergillus: TU ¼ 20 The influence of the different ... pretreated with lime to pH –8 and then is fed into an aerobic bioreactor equipped with a rotating wheel-type air conductor The reactor is operated in a repeated fed batch culture fashion with a cycle...

Ngày tải lên: 11/08/2014, 17:22