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Summary Introduction to Pandas In Python
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A brief Introduction about Pandas In Python adn its Installation
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What is Pandas python?Introduction to Pandas
Pandas has become a buzzword in the Python community lately, especially in the data science
community. Data science is the process of analyzing large sets of data points in order to answer
questions about them. Pandas is a Python module that makes data science extremely easy and
effective. Pandas allows you to do data munching or data wrangling in Python. The process of
cleaning the data is called data. The problem is I have this number and pi in Pandas, but I want to fill
it with zero value. Pandas can do more than this if you look at the Pandas documentation; you will
find a rich set of functionality that you can not find anywhere else in any of the libraries. When you
execute this, you will get 6.22 which is the same as this answer.
Pandas is a popular Python module in the data science community, which makes data analysis easy
and efficient. It allows you to analyze large sets of data and get answers to questions related to that
data set.
For example, let's say you have an Excel file containing weather data for New York City in January.
You might have questions like: What is the maximum temperature? On which days did it rain? What
was the average wind speed?
While you could use Excel to answer these questions, it becomes harder with larger data sets.
Python and Pandas provide a more efficient solution.
Example
Let's take a look at an example to see how Pandas works. We have a CSV file containing weather
data for New York City in January, which we'll use to answer the questions from earlier.
First, we'll read the CSV file into a data frame object using Pandas:
import pandas as pddata = pd.read_csv('weather.csv')
Once we have the data frame, we can easily answer our questions:
To find the maximum temperature: data['Temperature'].max()
To find the dates when it rained: data[data['Events'] == 'Rain']['EST']
To find the average wind speed: data['WindSpeedMPH'].mean()
Pandas makes it easy to analyze data with just a few lines of code.
Data Munching
One issue we may encounter is missing data, which can affect our analysis. This is where data
munching or data wrangling comes in. We can use Pandas to clean up our data and prepare it for
analysis.
For example, if we have missing wind speed data, we can use the fillna() method to fill in the missing
values with zeros:
data['WindSpeedMPH'].fillna(0, inplace=True)
Now we can get an accurate average wind speed.
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