Data Science is a vast discipline with several subfields like data preparation and exploration, data representation and transformation, data visualization and presentation, predictive analytics, machine learning, etc. However, for novices who want a career in this domain, it’s normal for them to pose the following question: What skills do I need to become a data scientist? All this is possible if you stick to this article till the end. Alternatively, you can enroll in the Data Science Online Training for a more advanced approach to learning this skill and make yourself stand apart from the crowd.
Data Science: Meaning
Data science is the process of extracting useful information from a massive volume of data with the help of tools and procedures. Also, you can use it for anything from corporate decisions to sports analytics to assessing insurance risk. Generally, data science is concerned with extracting clean information from raw data to provide meaningful insights. However, the discipline of data science is fast expanding and transforming numerous sectors. It offers tremendous advantages in business, science, and our daily lives.
Necessary Skills to Get Started with Data Science
The following are the crucial skills that every data science professional must be proficient in for a lucrative career:
Mathematics and Statistics Skills
The following are the mathematical and statistical skills that you must be aware of:
Statistics and Probability
You can use statistics and probability in feature visualization, data preparation, feature transformation, data imputation, dimensionality reduction, feature engineering, model assessment, and other applications. However, the topics you must be familiar with include; Mean, Median, Mode, Standard Deviation, etc.
It’s easy to generate most machine learning models using a data set that involves many features or predictors. As a result, understanding multivariable calculus is critical for developing a machine learning model. The subjects you should be familiar with includes the following; multiple variable functions, Gradients, and derivatives, the step function, the sigmoid function, the logit function, the ReLU (Rectified Linear Unit) function, the cost function, etc.
The most popular math ability in machine learning is linear algebra. Here, a matrix represents data collection. However, you can use linear algebra to preprocess, transform data, and evaluate models. The subjects you should be familiar with, include vectors, metrics, the inverse of a matrix, dot product, etc.
Essential Programming Skills
Data science requires programming abilities. As Python and R are the two most prominent programming languages in data research, proficiency in both is required. However, some employers may demand R or Python expertise, not both.
Get familiar with the fundamentals of Python programming. Thus, the following are the most significant packages that you should learn how to use:
- a) Numpy
- b) PyTorch
- c) Seaborn
- d) Pandas
- e) Matplotlib
The R programming skills include the following:
- a) Caret
- b) Tidyverse
- c) Ggplot2
- d) Dplyr
Data Wrangling and Preprocessing Skills
Data wrangling is an essential step for any data scientist. In a data science project, data is rarely available for analysis. However, the data is more likely to be in a file, a database, or extracted from documents like web pages, tweets, or PDFs. Knowing how to wrangle and clean data will allow you to extract insights from your data that might otherwise go unnoticed.
On the other hand, Data preparation knowledge is essential and includes subjects such as; dealing with missing data, Imputation of data, working with categorical data, Class label encoding for classification issues, Feature transformation, and dimensionality reduction techniques such as Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA).
Basic Machine Learning Skills
Machine Learning is a significant area of data science. However, it is crucial to understand the machine learning framework, which includes problem framing, data analysis, model building, testing, evaluation, and model application. As a result, the following are key machine learning algorithms to understand.
- Continuous Variable Prediction
- Discrete Variable Prediction
- Unsupervised Learning
Data scientists must be able to convey their ideas to other team members or business administrators in their company. In order to be able to express and present complex material to those with little or no comprehension of technical ideas in data science, good communication skills would be essential. Good communication skills will help to create a sense of unity and togetherness among team members such as data analysts, data engineers, field engineers, etc.
Hopefully, you may find this article informative. We have compiled the crucial skills every data science professional must gather in order to start their professional journey in this sector. So, if you are one you want a career in this domain, it is necessary to enroll for the Data Science Online Training in India.