Natun Yadav

How to condense if/else into one line in Python?

In Python, you can condense an if/else statement into a single line using what's called a ternary conditional operator. This is a clean and readable way to assign a value or return a result based on a condition without writing a full multi-line if/else block. Syntax: value_if_true if condition else value_if_false…

Python

Answered May 15, 2025 · 1.1K Views Read answer →

Explain the Plundervolt attack.

Plunder Volt is a vulnerability in Intel CPUs. These CPUs allow users to use privileged software interfaces to undervolt their CPU. Undervolting is the process of supplying the CPU with less power than specified, usually in order to conserve power. In this case, undervolting is used to induce faults into calculations.…

Web-development

Answered Oct 17, 2022 · 1.2K Views Read answer →

Give a detailed description of the Java GPA calculator.

For the Java GPA calculator - Since the letters and symbols we're dealing with are relatively close to each other in terms of character value, we can use that to our advantage by doing some simple maths. NOTE: This code is largely unchecked and rather verbose - optimise as desired class Student { private double points…

Java

Answered Oct 12, 2022 · 1.1K Views Read answer →

SOQL: Convert set to list

To convert set to list, their is no need to work with lists and sets if you group-by in the query: public List getItems() { List options = new List(); for(AggregateResult l : [SELECT Name FROM License__c GROUP BY Name]){ options.add(new SelectOption(String.valueOf(l.get('Name')),String.valueOf(l.get('Name')))); }…

SQL Server

Answered Jul 29, 2021 · 1.0K Views Read answer →

Explain how apply() and lapply() function works in R.

Apply() function works by considering input as a data frame or a matrix and gives an output as a vector, list or an array. apply() function basically takes 3 arguments which are Array or a matrix A value to define the function A function to apply. lapply() function works only on lists and it also returns output as a…

Data Science

Answered Nov 19, 2019 · 1.3K Views Read answer →

Explain with an example how to view the first few rows or the last few rows of a dataset in R.

To do this we have to select a dataframe for selecting rows and columns. A data frame is a structure having 2 dimensions which contains data in the form of rows and columns. It can be spreadsheet data and can be represented in the form of tables or dictionaries of series. In R, let us read a built in dataset which is…

Data Science

Answered Nov 19, 2019 · 1.5K Views Read answer →

Explain with a case study how to implement tree method using R.

We will be exploring the use of tree methods to classify schools as Private or Public based off their features. library(ISLR) head(College) We will split the data for training and testing library(

Data Science

Answered Nov 13, 2019 · 1.3K Views Read answer →

How to perform z-test and t-test using R? Explain with an example

To perform z- test, let us take data first. ############## 1 sample z test ########## fabric=read.csv(file.choose()) Fabric Here fabric is the dataset Now to perform Normality test, we can perform Anderson-Darling Test which is the following ##### Normality Test################## library(nortest) ad.test(

Data Science

Answered Nov 13, 2019 · 1.4K Views Read answer →