subclassing

问题 I'm using Keras to predict a time series. As standard I'm using 20 epochs. I want to know what did my neural network predict for each one of the 20 epochs. By using model.predict I'm getting only one prediction among all epochs (not sure how Keras select it). I want all predictions, or at least the 10 best. According to a previous answer I got, I should compute the predictions after each training epoch by implementing an appropriate callback by subclassing Callback() and calling predict on

问题 I keep coming back to variants of this problem: it probably has a very simple solution, but I can't seem to figure it out... I have a bunch of classes of the form xQuantity, e.g. DistanceQuantity, AreaQuantity, etc., which extend a class DimensionQuantity. Now you can add or subtract DistanceQuantity's or AreaQuantity's, etc., but you can't mix them, so I think I need to have (short) add, subtract, etc., methods in the subclasses, but I want to reduce any logic duplication to a minimum.

问题 Is there anyway to override internal framework method when subclassing in Swift? Ex. Superclass public class BarChartRenderer: ChartDataRendererBase { internal func drawDataSet(context context: CGContext, dataSet: BarChartDataSet, index: Int) { ... } } and I want to override this method to draw differently that dataSet (iOS-Charts) public class ESBarChartRenderer: BarChartRenderer { overide func drawDataSet(context context: CGContext, dataSet: BarChartDataSet, index: Int) { ... } } but when I

问题 I'm trying to run code from the book "Functional Programming in Scala" which seems to be made for an older version of scala (download from here). tmp.scala: sealed trait Option[+A] case class Some[+A](get: A) extends Option[A] case object None extends Option[Nothing] trait Option[+A] { /* returns None if None, or function applied to the some object */ def map[B](f: A => B): Option[B] = this match { case None => None case Some(a) => Some(f(a)) } } The errors this throws are: $ scala Welcome to

问题 I'm trying to subclass an external window in C#. I have used something similar before in VB6 without any problem BUT the below code just won't work. Can anybody help me out? //API [DllImport("user32")] private static extern IntPtr SetWindowLong(IntPtr hWnd, int nIndex, IntPtr newProc); [DllImport("user32")] private static extern IntPtr SetWindowLong(IntPtr hWnd, int nIndex, WinProc newProc); [DllImport("user32.dll")] private static extern IntPtr DefWindowProc(IntPtr hWnd, int uMsg, int wParam

问题 How can we make a class who lies about who he has subclassed? After reading the doc I've attempted this: >>> class AllYourBase(type): ... @classmethod ... def __subclasscheck__(cls, other): ... return True ... >>> class AllYour(object): ... __metaclass__ = AllYourBase Now, this class should report that all your base are belong to him. But it didn't work: >>> issubclass(AllYour, int) False Why not? 回答1: If you want AllYour to claim to be a subclass of every class, that isn't possible. _

问题 I want to apply a custom alpha value to the title of the UINavigationBar . The UINavigationBar is part of the UINavigationController and the UINavigationController is part of a UITabBarController . Edit: Here is a picture of what I created using a UIToolbar and a UILabel. I want to do the same using the title in the UINavigationController: http://i.stack.imgur.com/B8YX0.png I think the only way to accomplish this would be to subclass the UINavigationBar and override a method that allows me to

问题 Most of the search results I've found have turned up to be the opposite of what I'm looking for so here's my question: I'm trying to convert System types into custom types of my own but as I mentioned, my search results have not been effective and give me the opposite of what i'm looking for. Say I have a String of "mystringgoeshere" and a class like: Class MyStringType Dim str As String End Class Dim s As MyStringType = "mystringgoeshere" And i get this error {Value of type 'String' cannot

问题 I am trying to extend the MATLAB containers.Map class by subclassing it and adding an additional method with 0 outputs, but I encounter the "too many output arguments" error when executing the method. This is not specific to the new method implementation--any additional method that extends containers.Map() with 0 outputs will generate this error. Specifically, the error is encountered when executing, obj = Containers(); obj.testfun(); For the following class definition, classdef Containers <

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 9 months ago . I've heard varying things about whether or not creating a Subclass of UIWebView is allowable. Can someone link me to any documentation that clarifies this one way or another? 回答1: Under Subclassing Notes of the UIWebView reference, all it says is: Subclassing Notes The UIWebView class should not be subclassed.