In this chapter, you’ll get more familiar with time-based variables and the multiple ways to extract further variables using EDA for analysis—like day of week and time difference. You’ll get hands-on with Power BI as you build line charts to calculate new metrics and uncover trends hiding in your data—including period-over-period change and rolling averages.

Starting to explore time series data

Statements about time series analysis

Exploring AirBnB time series

Generating a new date variable

Analyzing trends by day of week

Calculating year-over-year change

Exploring Time Series Data

Time series run chart

Cyclical vs. Seasonal

Analyzing Glassdoor reviews over time

Building your first time series chart

Calculating rolling averages

Finding anomalies in time series data

Analyzing Time Series in Power BI

One of the most powerful functions of EDA in Power BI is being able to identify which variables have the most influence on your target outcome. A native Power BI visualization tool enabling that is Decomposition Trees. You'll learn about Decomposition Trees, how to construct, then interpret in order to explain a target outcome by other variables. 

Introduction to decomposition trees

Statements about decomposition trees

Using decomposition trees in Power BI

Getting started with decomposition trees

Diving deeper into decomposition trees

Decomposing attrition rates

Decomposition Trees

In this chapter you'll build another native Power BI tool, Key Influencers visual. It helps you to understand how much a target outcome changes based on specific variables and segments of observations.

Pengantar key influencers

Opsi

Decomposition Tree

Key Influencer

Decomposition tree vs. key influencer

Menggunakan key influencers di Power BI

Key influencers untuk harga listing rata-rata

Segmen dari key influencers

Key influencers untuk superhost

Selamat!

Key Influencers

Exercises and Datasets

DataCamp vs. Local Experience

Dalam kursus ini, Anda akan mempelajari cara menganalisis deret waktu, memvisualisasikan data, dan menemukan tren. Anda akan membangun variabel tanggal baru, mempelajari run chart, dan menghitung rata-rata bergulir. Terakhir, Anda akan mengetahui cara mengidentifikasi variabel mana yang paling memengaruhi variabel target menggunakan decomposition tree dan key influencers di Power BI.

<h2>Bukan data deret waktu</h2>

  

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Exploratory Data Analysis in Power BI

Tingkatkan laporan Anda dengan analisis tren seperti deret waktu, pohon dekomposisi, dan pengaruh utama.

Analisis Tren di Power BI

Analis Data di Power BI

Memungkinkan eksplorasi variabel target melalui jalur yang berbeda

Berguna untuk membandingkan pengaruh lintas variabel secara langsung

Bergantung pada cukup banyak observasi untuk menurunkan pola

Mengeksplorasi dampak nilai tertentu terhadap perubahan variabel target

Decomposition tree vs. key influencer

Analisis Tren di Power BI

Latihan interaktif praktis