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2 years ago

Choose the correct sequence for classifier building from the following.

Computers and Technology

1 answer:

Alekssandra [29.7K]2 years ago

8 0

Answer:

Explanation:

First, we need to initialize the classifier.

Then, we are required to train the classifier.

The next step is to predict the target.

And finally, we need to evaluate the classifier model.

You will find different algorithms for solving the classification problem. Some of them are like decision tree classification etc.

However, you need to know how these classifier works. And its explained before:

You need to initialize the classifier at first.

All kinds of classifiers in the scikit-learn make use of the method fit(x,y) for fitting the model or the training for the given training set in level y.

The predict(x) returns the y which is the predicted label.And this is prediction.

For evaluating the classifier model- the score(x,y) gives back the certain score for a mentioned test data x as well as the test label y.

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1 year ago

Write a copy assignment operator for CarCounter that assigns objToCopy.carCount to the new objects's carCount, then returns *thi

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Answer:

Here is the copy assignment operator for CarCounter:

CarCounter& CarCounter::operator=(const CarCounter& objToCopy) {

carCount = objToCopy.carCount;

return *this; }

The syntax for copy assignment operator is:

ClassName& ClassName :: operator= ( ClassName& object_name)

In the above chunk of code class name Is CarCounter and object name is objToCopy.

Assignment operator = is called which assigns objToCopy.carCount to the new objects's carCount.

This operator basically is called when an object which is already initialized is assigned a new value from another current object.

Then return *this returns the reference to the calling object

Explanation:

The complete program is:

#include <iostream> //to use input output functions

using namespace std; //to access objects like cin cout

class CarCounter { //class name

public: // public member functions of class CarCounter

CarCounter(); //constructor of CarCounter

CarCounter& operator=(const CarCounter& objToCopy); //copy assignment operator for CarCounter

void SetCarCount(const int setVal) { //mutator method to set the car count value

carCount = setVal; } //set carCount so setVal

int GetCarCount() const { //accessor method to get carCount

return carCount; }

private: //private data member of class

int carCount; }; // private data field of CarCounter

CarCounter::CarCounter() { //constructor

carCount = 0; //intializes the value of carCount in constructor

return; }

// FIXME write copy assignment operator

CarCounter& CarCounter::operator=(const CarCounter& objToCopy){

/* copy assignment operator for CarCounter that assigns objToCopy.carCount to the new objects's carCount, then returns *this */

carCount = objToCopy.carCount;

return *this;}

int main() { //start of main() function

CarCounter frontParkingLot; // creates CarCounter object

CarCounter backParkingLot; // creates CarCounter object

frontParkingLot.SetCarCount(12); // calls SetCarCount method using object frontParkingLot to set the value of carCount to 12

backParkingLot = frontParkingLot; //assigns value of frontParkingLot to backParkingLot

cout << "Cars counted: " << backParkingLot.GetCarCount(); //calls accessor GetCarCount method to get the value of carCount and display it in output

return 0; }

The output of this program is:

Cars counted = 12

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2 years ago