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Octave's Kit Kat. To find out the clustering index of the sample points by the technique vectorization calculation

value, the second matrix is the cluster center value;Then, calculate the value of the sample point distance to the cluster center and find the lowest value of the cluster subscript.X_ext = Bsxfun (@plus, X, zeros ([Size (x), K]); centroids_ext = Permute (Centroids, [3, 2, 1]);d If_ext = Bsxfun (@minus, X_ext , Centroids_ext); [~, ix] = min (sum (dif_ext. * Dif_ext, 2), [], 3); idx = IX;  This completely vectorization code is difficult to understand and less concise than the half-cycle half-vect

OBJECTIVE-C Kit Kat--writing objective-c in Chinese

Artifice refers to a skill and a product that is too kit and useless.Reprint please specify the source http://blog.csdn.net/uxyheaven/article/details/46391771We can define basic operators and types with macros.#define 加 +#define 减 -#define 乘 *#define 除 /#define 大于 >#define 小于 #define 对比 ==#define 等于 =typedef NSInteger 整数型;typedef NSString 字符串型;And that's how it's written. 整数型 数字 等于 (1 加 2 乘 3 减 1) 除 2; 打印(@"%ld", 数字);If we're defining some basic

Some Kit Kat tricks developed by iOS

;caseuipangesturerecognizerdirectionleft: {[self handleLeftGesture:sender]; break;} caseuipangesturerecognizerdirectionright: {[self handleRightGesture:sender]; break;} default:{ break; }} break;}caseuigesturerecognizerstateended:{ direction=UIPanGestureRecognizerDirectionUndefined; break;} default:break;}}How can I stretch a picture so that it doesn't deform?1.UIImage *image = [[UIImage imagenamed:@ "xxx"] stretchableimagewithleftcapwidth:10 topcapheight:10];2.How to play GIF when this card, th

Some Kit Kat tricks developed by iOS

statusbar style to turn black, how to do?-(void) Navigationcontroller: (Uinavigationcontroller *) Navigationcontroller Willshowviewcontroller: ( Uiviewcontroller *) Viewcontroller animated: (BOOL) animated{[[UIApplication sharedapplication] SetStatusBarStyle: Uistatusbarstylelightcontent];}How do I make my navigationbar transparent instead of blurry?[Self.navigationbar setbackgroundimage:[uiimage New] Forbarmetrics:uibarmetricsdefault];self.navig Ationbar.shadowimage = [UIImage new];self.naviga

Some of the iOS Development Kit Kat 3

automatically navigate to that sentence.Fastest way to improve smoothness?Use instrument to find all view,layer that do not need to be transparent but transparent. all made opaque.Select ProfileSelect the color blended LayersChoose our recently-Weibo clientAnd then you'll see these things.Red or crimson is transparent layers and view, they are the culprit to slow down your FPS, if you do not need to be transparent to get rid of.A magical tool, Accessorizer.In the end of the mouth, look at the p

You may not be aware of some JavaScript Kit Kat Kinky Skills

Array object can enjoy the array of most of the prototype method such as map, class array object is to meet the two conditions of the object: first, with a reasonable range of values within the Length property, the second is the length property is greater than the maximum index of the object, the index is a reasonable range of certificates, Its string represents a key to the object, but a prototype method of the array is not called by the class array object, so it is necessary to first convert

Objective-c Kit Kat Kinky Tech--delegate Hook

Objective-c Kit Kat Kinky Tech –delegate HookArtifice refers to a skill and a product that is too kit and useless.Requirements DescriptionIn the actual programming process, we always have to customize some of the controls, in the process of customization, sometimes like to implement some of their own delegate method// MYScrollView.m- (instancetype)init{ ...

OBJECTIVE-C Kit Kat Kinky Technology--ims

Replacementsel:(SEL)replacement{Class Newclass = Objc_allocateclasspair([object class], "MySubClass", 0); Objc_registerclasspair(newClass); Method A = Class_getinstancemethod(NewClass, original); Method B = Class_getinstancemethod([object class], replacement); If(class_addmethod(Newclass, original, method_getimplementation(b), Method_ Gettypeencoding(b))){Class_replacemethod(NewClass, replacement, method_getimplementation(a), method_gettypeencoding(a) ); } else {Method_exchangeimplementations(A

OBJECTIVE-C Kit Kat--to disguise the object as a dictionary

) Objectforkeyedsubscript: (ID) key;@end#define As_pretenddictionary (__class) \ @interface __class (pretenddictionary) \- (void) SetObject: (ID) obj Forkeyedsubscript: (IDID) Objectforkeyedsubscript: (ID) key;@end#define Def_pretenddictionary (__class) \ @implementation __class (pretenddictionary) \- (void) SetObject: (ID) obj Forkeyedsubscript: (ID SelfSetvalue:obj Forkeypath: (NSString*) key]; } - (ID) Objectforkeyedsubscript: (ID) Key {return[ SelfValueforkeypath:ke

Some Kit Kat tricks developed by iOS

[tableView.pullToRefreshViewstopAnimating]whendone}position:SVPullToRefreshPositionBottom]; How to change the color of the small tick of the cell in TableView to another color? 1 _mTableView.tintColor=[UIColorredColor]; Originally my statusbar is lightcontent, result with Uiimagepickercontroller will cause my statusbar style to turn black, how to do? 1234 -(void)navigationController:(UINavigationController*)navigationControllerwillS

Some Kit Kat tricks developed by iOS

of the flow and what's wrong with it?This artifact is called: KmcgeigercounterGo to GitHub and move it.How to adjust the position of separaline without creating a new cell?_myTableView.separatorInset = UIEdgeInsetsMake(0, 100, 0, 0);How to click Self.view to let the keyboard, need to add a tapgestures?1 -(void) Touchesbegan: (Nsset *) touches withevent: (uievent *)event2{ 3 [Self.view Endediting:yes]; 4 }How to set the default background image for each viewcontroller?Use the base class Ah, j

iOS Debugging Kit Kat Kinky (i)

Symobol in accordance with the specific requirementsCode run timeAfter we have completed a project, we have to debug, in order to maximize the software flow, sometimes need to optimize the code, this time we need to find whichThe code is time-consuming, figuring out how to optimize the algorithm or opening up multiple threads to ensure a good user experience. The method of measuring time is used.NSDate *startTime=[NSDate date];for (i=0; iIt is recommended that you define a macro variable in the

Some Kit Kat tricks developed by iOS

,insertcellsattopoftableview//call[tableView.pullToRefreshViewstopAnimating]whendone}position:SVPullToRefreshPositionBottom]; How to change the color of the small tick of the cell in TableView to another color? 1 _mTableView.tintColor=[UIColorredColor]; Originally my statusbar is lightcontent, result with Uiimagepickercontroller will cause my statusbar style to turn black, how to do? 1234 -(void)navigationController:(UINavigationCon

Some Kit Kat tricks developed by iOS

] setstatusbarstyle:uistatusbarstylelightcontent]; 4 }How do I make my navigationbar transparent instead of blurry?1 New ]2 Forbarmetrics:uibarmetricsdefault]; 3 New ]; 4 self.navigationBar.translucent = YES;How to change the color and position of Uitextfield placeholder?Inherit Uitextfield, override this method1 -(void) Drawplaceholderinrect: (cgrect) rect {2 [[Uicolor Bluecolor] Setfill]; 3 [Self.placeholder drawinrect:rect withFont:self.font linebreakmode:uiline

[Kit Kat Kinky] Test array assignment

pointer address operation is calculated according to base + variable addressThere is a factor of 1 2 4 8 for Base address address addressing in byte (unsigned char) WORD (unsigned short) int Long that's the truth.This factor is stored in a 8-bit sib. 7 6 5 4 3 2 1 0 Specify coefficients Specify the variable address register Specify Base Address register Although the efficiency of memcpy is higher, this method

Kat Warehouse Management System-How do I defend my rights?--51aspx.com infringement, Hope Blog Park do not delete this article

Work has been tired for a day, after work is still thinking to tidy up in the storage management system, the printing problems encountered in two of these days wrote about the Cat warehouse management system printing related articles, are their own development and implementation of the actual problems encountered in the process I would like to share with you. Kat Warehouse Management system is I after years of accumulated development, to the present t

Kat Warehouse Management System-. SQL Server 2012 Upgrade Enterprise Edition

Label: As business data grows, the number of single tables is already billions and the data being queried is getting slower, so consider partitioning the database tables and upgrading the database to SQL Server 2012. There were no more considerations at the time, and the SQL Server Standard Edition version was installed on the server. When testing the data, it is found that the partition is not supported and must be Enterprise Edition, here is a record of how to upgrade Standard Edition to Enter

[Add to favorites] ASP. NET Starter Kit: Where is the available Portal Starter Kit?

Document directory Available regions of Portal Starter Kit Let's start digging for a mirror! Portal website engine (modular layout) Portal website mode (portal website content) Mode 2: Events) Module 3: Html file Module 4: XML/XSL Module 5: Links) Mode 6: quick link) Module 7: Document) Module 8: Forum) Mode 9: Contacts) Module 10: Image) Role-based security mechanism External memory self-Attention Mode Under Portal Starter

iOS Game Frame Sprite Kit Basic Tutorial 1th Chapter writing the first Sprite kit program

iOS Game Frame Sprite Kit Basic Tutorial 1th Chapter writing the first Sprite kit program a program is a collection of command sequences written in a computer language to achieve a specific goal or to solve a specific problem. This chapter will write the first Sprite kit Program as the main line, explaining to the developer what the Sprite

[Add to favorites] ASP. NET Starter Kit: Where is the secret that can be copied by Portal Starter Kit?

Document directory Deployment that can be copied by Portal Starter Kit Dynamic operation principle of the portal website engine Portal website settings XML Scheme Context object setting Role groups and Models Under Portal Starter Kit Chinese version of ASP. NET Starter Kit ASP. NET Starter Kit: Enter and devel

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