instance

问题 I'm new to WEKA and machine learning in general. I have a test set with about 6500 instances. I have a model that has already been trained with a training set. Once I run the test set through the saved model, is there a way I can extract the confidence level of each specific instance? By confidence level, I mean a numerical value that expresses the probability that the classifier has classified a specific instance correctly. I want this confidence number for each instance in the file. Is

问题 I am writing a game using the slick 2D engine and my own entity engine to work out the details of a 2D side scroller The way my code currently works is like this: Entity class holds entity information. It can have an Ability, something like Animation or sound or movement. All abilities are subclasses of an abstract class called Ability. I have a method in the Entity class where I wish to get an instance of a specific ability, so that I can use its methods: public Ability getAbility(String id)

问题 This question stems from a problem I was trying to solve regarding the ability to have "private" instance variables in JavaScript. You may want to read this, prior to my question. For the sake of completeness, I have illustrated my entire problem, before asking the question. My hope is that this will provide a complete example of how to implement instance members and methods correctly in JavaScript, and for any developer who lands here, to understand the pitfalls of the various

问题 Can I create an instance of an object within an if statement? I've made 2 checkboxes in order to controll which constructor I use, but i get the error message " The name "mth" does not exist in the current context " if (checkBox1.Checked && checkBox2.Checked) { Facto mth = new Facto(label3, wait_time, progressBar1); } else if(checkBox1.Checked==false && checkBox2.Checked) { Facto mth = new Facto(label3,wait_time); } else if (checkBox1.Checked && checkBox2.Checked == false) { checkBox1.Checked

问题 I'm a new trying to understand classes and how classes work. I'm building a small console program and am currently working on my 'class.cs' file which I titled 'LineItem.cs' as it will handle the line items on the receipt that I am trying to have my console application generate. PROBLEM: Member 'A070_ Classes _CashRegister.Program.receipt()' cannot be accessed with an instance reference; qualify it with a type name instead. (Error Line: #21/Column #13) I thought that i had done this on line

问题 So please forgive me as I am very new to stackoverflow and to ios programming in general. I am attempting to change the text of a button i have, replacing current text with a date string ( dateStringForInput ) I am passing in from another class. The button is called myTodayButton and is declared in my .h file for my class inputMilesViewController ... @property (strong, nonatomic) IBOutlet UIButton *myTodayButton ; Below is the code from my .m. +(void) changeButtonText:(NSString*)

问题 I feel like this is a dumb question, but when I'm in an IPython notebook and I do help on some numpy/scipy function, like say stat.norm.rvs, it frequently says, about *args and **kargs, "see docstring of the instance object for more information". How do I see this docstring if not with help(stat.norm.rvs)? 回答1: Don't feel dumb; sometimes it is hard to find the information you are looking for, especially when starting out. Moreover, much of the docstrings in scipy.stats are autogenerated, so

问题 Suppose I have two descendants of an abstract class: object Child1 extends MyAbstrClass { ... } class Child2 extends MyAbstrClass { } Now I'd like to determine (preferably in the constructor of MyAbstrClass ) if the instance being created is an object or something created by new : abstract class MyAbstrClass { { if (/* is this an object? */) { // do something } else { // no, a class instance, do something else } } } Is anything like that possible in Scala? My idea is to collect all objects

问题 this would be my first question ever on stackoverflow, hope this goes well. I've been working on a game (using corona SDK) and I used Node.js to write a small little server to handle some chat messages between my clients, no problems there. Now I'm working on expanding this little server to do some more, and what I was thinking to do is create an external file (module) that will hold an object that has all the functions and variables I would need to represent a Room in my games "Lobby", where

问题 I want to create a new type of data with Haskell and create the related Show instances. I need to create the tuple Show instance with another delimiter than , . I implemented this code (with the {-# LANGUAGE FlexibleInstances #-} pragma): newtype Data = Data Double instance Show Data where show (Data dat) = show dat instance Show (Data,Data) where show (Data d1,Data d2) = show d1++" "++show d2 instance Show (Data,Data,Data) where show (Data d1,Data d2,Data d3) = show d1++" "++show d2++" "+