Dataset split Study guides, Class notes & Summaries

Explain the difference between descriptive, predictive, and prescriptive modeling - Answer- Descriptive - focuses on what happened in the past and aims to describe the observed trends by identifying relationships between variables. Predictive - What will happen in the future and making accurate predictions. Prescriptive - Combo of optimization and simulation to investigate the impact of prescribed actions in different scenarios. Explain the difference between supervised and unsupervised le...

If you want your data to automatically refresh as you interact with visualizations, which option should you choose? A) Import B) DirectQuery B) DirectQuery Explanation: When you use DirectQuery, no data is imported into Power BI Desktop. As you create or interact with a visualization, PowerBI Desktop queries the underlying data source, i.e. you're always viewing current data. How do you connect to Excel files that contain target figures? The solution should involve minimum manual w...

Hands-On Experiment 4-1: Classification with Spark In this Hands-on exercise, you will learn • Decision Tree classifier in Apache Spark • How to handle data, features, and training & testing data • Training & Testing • Evaluation Related DM Book Chapters/Sections: • Section 8.1 Basic Concepts • Section 8.2 Decision Tree DataFrame-based Spark ML is new, much easier, and better. However, some features are missing. The evaluator for DataFrame provides limited metrics only. Th...

Unit 1: Identify Variable Types and Values Dr. Jardines Statistics Herzing University Variable Types and Values Looking over the information in the Heart Rate Dataset in excel, I was able to evaluate and identify all the different variables. The three variables used are: 1. Sex (Male/Female) - Qualitative 2. Resting heart rate – Quantitative continuous 3. Heart rate after exercise – Quantitative continuous For the variable Sex, or female/male, this is recorded as a 0 or ...

Which of the following are covered in the 70-778 exam? (Choose three) Modeling and visualizing data Connecting and transforming data Dashboards, reports, and apps Datasource maintenance and refresh schedules Modeling and visualizing data Connecting and transforming data Dashboards, reports, and apps Upon signing in to the Power BI web service, which of the following do you download? A. Power BI Mobile B. Power BI Desktop C. Data Gateway D. Power BI for Excel...

Natural Language Processing (CS4990). Top Exam Questions and answers, 100% Accurate, verified Why Python? - Shallow learning curve - Good string handling - Combines OO, aspect-oriented and FP paradigms - Extensive standard libraries (e.g. NLTK) - Great support for Deep Learning Human language Ultimate interface for interaction and communication. But something to understand, because it's: - highly ambiguous at all level - complex and a subtle use of context to convey meaning - fu...

Splunk - Core Power User Exam - DUMP | 2024 questions & answers Splunk - Core Power User Exam - DUMP When performing a regular expression (regex) field extraction using the Field Extractor (FX), what happens when the require option is used? A. The regex can no longer be edited. B. The field being extracted will be required for all future events. C. The events without the required field will not display in searches. D. Only events with the required string will be included in the extraction...

What are some of the data sources you can use in PBI? Flat files & Folders (csv, text, excel, json, etc). Databases (SQL Access, Oracle, IBM, MySql, etc.). Power Platform (Dataflows, Power BI Datasets, Datavers3, etc). Azure (SQL Db, Blob Storage, Cosmos DB, Data Lake Storage, etc). Online Services (Sharepoint, Github, Dynamics 365, Google Analytics, Salesforce, etc). Others (web feeds, R scripts, Spark, Hadoop, etc.). What let's you shape and transform data? Query editor What is Po...

Excel Chapter 4 Multiple Choice Questions and Answers Graded A+ You have a large dataset that will print on several pages. You want to ensure that related records print on the same page with column and row labels visible and that confidential information is not printed. You should apply all of the following page setup options except which one to accomplish this task? Change the print page order. Adjust page breaks. Set a print area. Print titles. Change the print page order You are working...

ISYE 6501 Homework 12: Power Company Case In approaching the power company case study, I find it best to break the problem into three more discrete and manageable parts. For each of these parts we can then better define the specific data needs, model usage, and results for each individual part. Then, it is possible bring these individually addressed issues together to create a cohesive analysis for the case. The three primary addressable parts are the following: 1) Classifying a non-paying...