instance

I'm an R user looking to get more comfortable with Python. I wrote a kind of mini-API that makes it easy to compare different statistical models fitted to the same data, in such a way that I can pre-set all the model hyperparameters and then iterate over the different models in order to fit them. This is the essence of what I want to do: Build a wrapper class Classifier around a Scikit-learn Pipeline , in turn built on one of Scikit-learn's built-in estimators, e.g. RandomForestClassifier Create a dictionary of these un-fitted Classifier s, and a different dictionary of parameters to loop over

I have a project which others have written and I have taken over it, hoping to make the app better. I encountered one problem: From one class: I write _customclass.variable. CustomClass is another class and variable is a property and is of int type. And I get value of the variable in this class, but when I change it to self.customclass.variable, I always get 0. Is there other alternative ways to get value from other class? (a) @property (readwrite)int boxSpacing; (b) @synthesize boxSpacing; (c) - (id)initWithCoder:(NSCoder *)aDecoder { self.boxSpacing = 10; } You asked: Is there other

Im getting fairly confused as the book im reading is delving into the NSNumber class and talks about all the different methods you can call on it. I have a couple questions: 1.) Do you not have to call a typical alloc or init on foundation classes? 2.)in what cases would you use, say, numberWithChar: as opposed to initWithChar (i think this is the part that is messing me up the most, not really sure im groking this concept on the level i need to be, if you folks could break it down for me I think it would really help me get over this humper-roo. Thanks, Nick Class/Instance Analogies Classes

Can I locally reference a class in C#, instead of an instance of a class? The following code won't compile but, as an example, something like: void someFunc() { var a = System.Math; var b = a.Abs(4); } edit: In the real program it's not the System.Math class and I'm wanting to construct the class and return the constructed value. I didn't think originally that the context in which I wanted to use the class would be relevent, and probably it shouldn't be. Anastasiosyal has an interesting idea with using a local Delegate to do it. You cannot assign a variable a value of a static class. The

Can anyone clarify me. Here instance method is overridden but variable is not. output is: B 10 class A{ int i=10; public void name(){ System.out.println("A"); } } class B extends A{ int i=20; public void name(){ System.out.println("B"); } } public class HelloWorld { public static void main(String[] args){ A a = new B(); a.name(); System.out.println(a.i); } } You cannot override attribute, you can only override method: public class A{ private int i=10; public void name(){ System.out.println("A"); } public int getI(){ return i; } } public class B extends A{ private int i=20; public void name(){

For example, doing something like this: foreach (DataRow row in data.Rows) { Person newPerson = new Person() { Id = row.Field<int>("Id"), Name = row.Field<string>("Name"), LastName = row.Field<string>("LastName"), DateOfBirth = row.Field<DateTime>("DateOfBirth") }; people.Add(newPerson); } Setting a breakpoint to an individual assignation is not possible, the breakpoint is set to the entire block. If I want to see specifically where my code is breaking, I have to use: foreach (DataRow row in data.Rows) { Person newPerson = new Person(); newPerson.Id = row.Field<int>("Id"); newPerson.Name = row

I have always wondered why all apple code samples use code like this: UINavigationController *aNavigationController = [[UINavigationController alloc] initWithRootViewController:rootViewController]; self.navigationController = aNavigationController; [self.view addSubview:[navigationController view]]; [aNavigationController release]; They always create a local variable and assign it to the ivar why don't they simply do this: self.navigationController = [[UINavigationController alloc] initWithRootViewController:rootViewController];; [self.view addSubview:[navigationController view]];