Playing with Pandas library

The techniques for Reshaping, Grouping, and Pivoting the data

Python has turned the world just in a decade with its popularity and efficiency. Python has followed offering a reliable trend of Data Science which comprises of:

· Data Gathering

· Data Cleaning

· Machine Learning models

· Visualization of Data

Pandas is a very fundamental inbuilt library in Python uptakes a lot of the area. It is an open-source library that is easy to use, providing high efficiency and many tools used in the analysis of data for Python programming.

Pandas is an in-memory no SQL type database providing a helping hand for basic SQL constructs, statistical methods, and the capability of graphing. As it was built on top of Cython, it runs quicker along with consuming less time to access some memory within a machine.

→Pandas have a very advanced feature of carrying out some operations on the group of data frames.

→Data Frame: A 2D data that is labeled. It contains different columns and rows.

So, in this article, we’re going to have our quick eyes on some methods of grouping, reshaping, and pivoting the data.

#pandas #data-science #python #artificial-intelligence #playing with pandas library #pandas library

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Playing with Pandas library

The techniques for Reshaping, Grouping, and Pivoting the data

Python has turned the world just in a decade with its popularity and efficiency. Python has followed offering a reliable trend of Data Science which comprises of:

· Data Gathering

· Data Cleaning

· Machine Learning models

· Visualization of Data

Pandas is a very fundamental inbuilt library in Python uptakes a lot of the area. It is an open-source library that is easy to use, providing high efficiency and many tools used in the analysis of data for Python programming.

Pandas is an in-memory no SQL type database providing a helping hand for basic SQL constructs, statistical methods, and the capability of graphing. As it was built on top of Cython, it runs quicker along with consuming less time to access some memory within a machine.

→Pandas have a very advanced feature of carrying out some operations on the group of data frames.

→Data Frame: A 2D data that is labeled. It contains different columns and rows.

So, in this article, we’re going to have our quick eyes on some methods of grouping, reshaping, and pivoting the data.

#pandas #data-science #python #artificial-intelligence #playing with pandas library #pandas library

Python Pandas Objects - Pandas Series and Pandas Dataframe

In this post, we will learn about pandas’ data structures/objects. Pandas provide two type of data structures:-

Pandas Series

Pandas Series is a one dimensional indexed data, which can hold datatypes like integer, string, boolean, float, python object etc. A Pandas Series can hold only one data type at a time. The axis label of the data is called the index of the series. The labels need not to be unique but must be a hashable type. The index of the series can be integer, string and even time-series data. In general, Pandas Series is nothing but a column of an excel sheet with row index being the index of the series.

Pandas Dataframe

Pandas dataframe is a primary data structure of pandas. Pandas dataframe is a two-dimensional size mutable array with both flexible row indices and flexible column names. In general, it is just like an excel sheet or SQL table. It can also be seen as a python’s dict-like container for series objects.

#python #python-pandas #pandas-dataframe #pandas-series #pandas-tutorial

Pandas in Python

Pandas is used for data manipulation, analysis and cleaning.

What are Data Frames and Series?

Dataframe is a two dimensional, size mutable, potentially heterogeneous tabular data.

It contains rows and columns, arithmetic operations can be applied on both rows and columns.

Series is a one dimensional label array capable of holding data of any type. It can be integer, float, string, python objects etc. Panda series is nothing but a column in an excel sheet.

How to create dataframe and series?

s = pd.Series([1,2,3,4,56,np.nan,7,8,90])

print(s)

How to create a dataframe by passing a numpy array?

1. d= pd.date_range(‘20200809’,periods=15)
2. print(d)
3. df = pd.DataFrame(np.random.randn(15,4), index= d, columns = [‘A’,’B’,’C’,’D’])
4. print(df)

#pandas-series #pandas #pandas-in-python #pandas-dataframe #python

WORKING WITH GROUPBY IN PANDAS

In my last post, I mentioned the groupby technique  in Pandas library. After creating a groupby object, it is limited to make calculations on grouped data using groupby’s own functions. For example, in the last lesson, we were able to use a few functions such as mean or sum on the object we created with groupby. But with the aggregate () method, we can use both the functions we have written and the methods used with groupby. I will show how to work with groupby in this post.

#pandas-groupby #python-pandas #pandas #data-preprocessing #pandas-tutorial

INTRODUCTION TO THE PANDAS LIBRARY

Pandas is a great library for data preprocessing. Pandas often uses libraries such as NumPy and SciPy for numerical computations and Matplotlib to visualize data. Pandas has methods similar to the methods in NumPy. While NumPy works with the same data types, Pandas can work with different data types.

A data set written in Excel or SQL table data can be easily analyzed with pandas.

Pandas module is an open-source library since 2010. Pandas is constantly updated by developers around the world.

In summary, I will explain the following topics in this post:

• How to install Pandas?
• Series data structure
• Working with Series
• DataFrame data structure

Before starting the topic, our Medium page includes posts on data science, artificial intelligence, machine learning, and deep learning. Please don’t forget to follow us on Medium 🌱 to see these posts and the latest posts.

Let’s get started.

#data-science #pandas-dataframe #pandas-series #pandas #machine-learning