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How to Check Column Nulls and Replace: Pandas

Here is a post that shows how to count Nulls and replace them with the value you want in the Pandas Dataframe. We have explained the process in two steps - Counting and Replacing the Null values. Count null values (column-wise) in Pandas ## count null values column-wise null_counts = df.isnull(). sum() print(null_counts) ``` Output: ``` Column1    1 Column2    1 Column3    5 dtype: int64 ``` In the above code, we first create a sample Pandas DataFrame `df` with some null values. Then, we use the `isnull()` function to create a DataFrame of the same shape as `df`, where each element is a boolean value indicating whether that element is null or not. Finally, we use the `sum()` function to count the number of null values in each column of the resulting DataFrame. The output shows the count of null values column-wise. to count null values column-wise: ``` df.isnull().sum() ``` ##Code snippet to count null values row-wise: ``` df.isnull().sum(axis=1) ``` In the above code, `df` is the Panda

How Internet of things connecting devices by 2020

Code Halos in IOT
Code Halos in IOT
According to a Cisco Internet Business Solutions Group (IBSG) study in 2011, the IoT was ‘born’ sometime between 2008 and 2009. Looking to the future, Cisco IBSG predicts there will be 25 billion devices connected to the Internet by 2015 and 50 billion by 2020.

So how big is the economic impact?

The Wikibon research ‘Worldwide Industrial Internet Analysis Projection, 2013’, estimates Industrial Internet technology spending at $514 billion and value delivered at $1.3 trillion by 2020. Recent IDC research cites “Explosive growth in cloud and number of Internet-connected devices is expected to propel the Internet of Things market globally to $3.04 trillion in 2020”.
Related: IOT-Internet of things basics-part:1

Thus, the potential of Code Halo opportunities led by IoT is gaining unprecedented traction and is expected to drive unparalleled growth across industries. While IoT lays the foundation for Code Halos; the technology industry would undergo a sea change in miniaturization of sensing and detection, embedded digital processing, SMAC, and communication. Each would have varying levels of complexity, maturity, market adaptability, and service impact based from one user or industry to another.

Code Halos through IoT combines technology, individual, and public interests to take us to the next giant leap in the Internet-led revolution that will change business models, technology focus, and customer experience affecting daily lives. Improving real-time or near real-time sensing and data processing, enabling intelligent task execution, and simplifying communication introduces the unique value proposition of supporting almost anything anytime, anywhere – the new digital computing paradigm.


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