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igor_vitrenko [27]
3 years ago
5

What is the output of the following program? #include using namespace std; class TestClass { private: int val; void showVal() {

cout << val << endl; } public: TestClass(int x) { val = x; } }; int main() { TestClass test(77); test.showVal(); return 0; }
Computers and Technology
1 answer:
sveticcg [70]3 years ago
5 0

Answer:

The answer to this question is "The program will not compile."

Explanation:

In the given C++ programming language program. The program will not compile because in the program we define a class that is "TestClass" in this class we define a private variable and a function that is val and showVal(). In this function, we print the value of val variable. Then we define a parameterized constructor, in this constructor we use the private variable val that holds the constructor parameter value. Then we define a main function, in the main function we create a class object test which is defined wrong.

That's why the answer to this question is "The program will not compile."  

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Answer:

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Lasso: R example

To run Lasso Regression you can re-use the glmnet() function, but with the alpha parameter set to 1.

# Perform 10-fold cross-validation to select lambda --------------------------- lambdas_to_try <- 10^seq(-3, 5, length.out = 100) # Setting alpha = 1 implements lasso regression lasso_cv <- cv.glmnet(X, y, alpha = 1, lambda = lambdas_to_try, standardize = TRUE, nfolds = 10) # Plot cross-validation results plot(lasso_cv)

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Kindly check the Image below.

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