Data wrangling helps data usability by transforming it to make it compatible with the end system as complex and intricate datasets can hinder data analysis and business processes. To make data usable for the end processes, data wrangling tools transform and organize data according to the target system’s requirements.
But what is data wrangling, and why is it so important? Read this article to find out.
- What Is Data Wrangling?
- Data Wrangling vs. Data Mining
- Why Do You Need Data Wrangling?
- How To Do Data Wrangling? 5 Key Steps
- Data Wrangling Use Cases
- Using A Data Wrangling Tool
What is a Data Wrangling?
It is the process of taking disorganized or incomplete raw data and standardizing it so that you can easily access, consolidate, and analyze it. It also involves mapping data fields from source to destination, for example, targeting a field, row, or column in a dataset and implementing an action like joining, parsing, cleaning, consolidating, or filtering to produce the required output.
Your company can then use this data to process it further for business intelligence (BI), reporting, or improving business processes. Therefore, the process ensures that the data is ready for automation and further analysis.
Now that what is data wrangling is clear, let’s move forward.
Data Wrangling vs. Data Mining
Some people struggle to understand the difference between data munging and data mining. Data mining is the process of finding patterns and relationships hidden in large data sets. Data mining helps businesses to decipher meaningful patterns in their data, whether it is open-source data or not.
On the other hand, it is a superset of data mining and requires multiple other decision-making processes, such as data cleaning, transforming, integrating, etc. In this regard, wrangled data is important for accurate reporting and business intelligence insights.
Why Do You Need Data Wrangling?
Did you know, data professionals spend almost 73% of their time just wrangling the data? This means it’s an indispensable aspect of data processing. It helps business users make concrete, timely decisions by cleaning and structuring raw data into the required format. As the data is becoming more unstructured and diverse, data wrangling is becoming a common practice among top organizations.
Accurately wrangled data ensures that quality data is entered into analytics or downstream processes for consolidation and collaboration. Data wrangling is essential to optimize the data-to-insight journey and support accurate decision-making.
Data wrangling can be arranged into a consistent and repeatable procedure using data integration tools with automation capabilities that clean and convert data sources into a reused format as per the end requirements. You can perform crucial cross-data set analytics after reverting data to a standard format. Moreover, data wrangling with Python is typical as Python employs different methods to wrangle the data stored in different data sets.
How To Do Data Wrangling? 5 Key Steps
Just like most data analytics processes, it is an iterative process in which you have to perform the five steps recurrently to get your desired results. These five steps are as follows:
· Understanding Data
The first step is to understand the data in great depth. Before applying procedures to clean it, you must have a clear idea of what the data is about. This will help you find the best approach for productive analytic explorations. For instance, if you have a customer dataset and learn that most of your customers are from one part of the country, you’ll keep that in mind before progressing further.
In most cases, you’ll have raw data in a disorganized manner. There won’t be any structure to it. In the second step, you have to restructure the type of data for easy accessibility, which might mean splitting one column or row into two or vice versa – whatever is needed for better analysis.
Almost every dataset includes some outliers that can skew the outcomes of the analysis. You’ll have to clean the data for optimum results. In the third step, the data is cleansed exhaustively for superior analysis. You’ll have to change null values, remove duplicates and special characters, and standardize the formatting to improve the consistency of the data. For example, you may replace the many different ways that a state is recorded (such as CA, Cal, and Calif) with a single standard format.
After the third step, your data must be enriched, which means taking stock of what’s in the dataset and strategizing how to make it better by adding supplementary data. For example, a car insurance company might want to know crime rates in the neighborhoods of their users to estimate risk better.
Validation rules denote some repetitive programming steps that are used to authenticate the reliability, quality, and safety of the data you have. For instance, you’ll have to determine whether the fields in the dataset are precise by cross-checking data or observing whether the attributes are normally distributed.
Data Wrangling Use-Cases
Data munging is used for diverse use-cases two of the most commonly used ones include:
Using a data wrangling tool, a business can perform the following:
- Distinguish corporate fraud by identifying unusual behavior by examining intricate information like multi-party and multi-layered emails or web chats.
- Support data security by allowing non-technical operators to examine and wrangle data quickly to keep pace with billions of daily security tasks.
- Ensure precise and repeatable modeling outcomes by standardizing and quantifying structured and unstructured sets of data.
- Enhance compliance by ensuring your business complies with industry and government standards by following security protocols during integration.
Customer Behavior Analysis
A data munging tool can help your business processes get precise insights quickly via customer behavior analysis. It empowers the marketing team to take business decisions into their hands and make the best of them. You can use data wrangling tools to:
- Decrease the time spent on data preparation for analysis
- Quickly understand the business value of your data
- Allow your analytics team to utilize the customer behavior data directly
- Empower data scientists to find out data trends via data discovery and visual profiling
Using a Data Wrangling Tool
Data wrangling is an essential part of the process for a business that wants to enjoy the finest and result-driven BI and analytics. You can use automated tools for data wrangling, such as Astera Centerprise. The software extracts data and transforms, cleans, and structures data into analytics and BI apps using pre-built connectors. Wrangled data, in turn, provides accurate results that helps companies strategize accordingly.
With the Instant Data Preview feature, Astera Centerprise allows you to validate your data mappings. You can easily examine a data sample at every step of the data transformation process. As a result, you can quickly detect and correct any mapping errors before the job is executed.