The task is to design a database model representing flat data across multiple linked tables using "third-normal form" (3NF), i.e. columns with vertical duplication must be placed in separate tables and linked into the main table using a foreign key.  

数据：2022.09.01--2022.11.01 random pk viewer change data

A tutorial of HTML R Markdown

Project 1 on chess tournament data clean up. The data is from a text file

Verónica Nayeli Miranda Mejía MM21065 Métodos para el Análisis Económico "GT 03"

This analysis explores science and technology indicators for Kenya, focusing on charges related to the use of intellectual property between 2019 and 2022. The dataset includes annual values for various indicators, allowing one to examine trends over time. The primary objectives of the analysis are to: -Clean and preprocess the data by removing irrelevant rows and converting variables to appropriate types for analysis. Generate summary statistics to understand the indicators' central tendencies (mean, median) and variability (minimum, maximum) across the available years. -Visualize trends in the indicators over time, using line charts to depict how intellectual property charges and other metrics have evolved. -Provide actionable insights by highlighting patterns that may inform policy-making and economic development stakeholders, within Kenya's science and technology sectors. The results of this analysis offer an overview of how the country's investment in intellectual property is shaping its knowledge economy, allowing for evidence-based recommendations to support future growth.