If you want to master data science in Python, you need to learn Pandas method chaining.
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#data #datascience #Python
https://twitter.com/Josh_Ebner/status/1430989142977097735?s=20
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#data #datascience #Python
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Pandas method chains enable you to combine together several individual Pandas techniques in complex ways.
Pandas method chains enable you to combine together several individual Pandas techniques in complex ways.
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When most people do this, they do it with very long chains of techniques, *all on a single line*.
These are hard to read and hard to debug.
They get more challenging the longer they get.
When most people do this, they do it with very long chains of techniques, *all on a single line*.
These are hard to read and hard to debug.
They get more challenging the longer they get.
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There's a better way though.
If you use a special syntax, you can put the Pandas methods on separate lines.
#data #datascience #Python
There's a better way though.
If you use a special syntax, you can put the Pandas methods on separate lines.
#data #datascience #Python
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To do this, you need to enclose the entire expression inside of parenthesis.
You need to have an "open" parenthesis before the dataframe name.
And you need a "close" parenthesis after the last method.
To do this, you need to enclose the entire expression inside of parenthesis.
You need to have an "open" parenthesis before the dataframe name.
And you need a "close" parenthesis after the last method.
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This seems strange to many Python users, but it is extremely powerful.
This seems strange to many Python users, but it is extremely powerful.
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To understand, let's look at a revised version of the code I showed earlier.
Here, we're using two different Pandas methods in series...
But on separate lines.
To understand, let's look at a revised version of the code I showed earlier.
Here, we're using two different Pandas methods in series...
But on separate lines.
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When we write the code this way, the code becomes *dramatically* easier to read and also debug.
It's easier to debug, because we can simply comment out methods that we don't want to use.
#data #datascience #Python
When we write the code this way, the code becomes *dramatically* easier to read and also debug.
It's easier to debug, because we can simply comment out methods that we don't want to use.
#data #datascience #Python
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This technique really shows its power when you use more than 2 or 3 methods.
You can chain together many Pandas methods to perform complex data manipulations.
This technique really shows its power when you use more than 2 or 3 methods.
You can chain together many Pandas methods to perform complex data manipulations.
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Here's an example of Pandas method chaining with 3 methods:
Here's an example of Pandas method chaining with 3 methods:
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And here's an example of Pandas method chaining with 6 methods.
This is a highly complex data manipulation, and we've done it in a single block of code.
#data #datascience #Python
And here's an example of Pandas method chaining with 6 methods.
This is a highly complex data manipulation, and we've done it in a single block of code.
#data #datascience #Python
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As you probably know, if you want to master data science, you need to master data wrangling.
And if you want to master data wrangling in Python, you need to master this technique.
As you probably know, if you want to master data science, you need to master data wrangling.
And if you want to master data wrangling in Python, you need to master this technique.
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The Pandas method chaining technique is very powerful, and it enables you to do complex data wrangling and complex data analysis it a much more streamlined way.
The Pandas method chaining technique is very powerful, and it enables you to do complex data wrangling and complex data analysis it a much more streamlined way.
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To learn more about data science and data wrangling in Python, follow me here: @Josh_Ebner
Every day, I post tutorials and tips on how to master data science in R and Python.
#data #datascience #Rstats #Python
To learn more about data science and data wrangling in Python, follow me here: @Josh_Ebner
Every day, I post tutorials and tips on how to master data science in R and Python.
#data #datascience #Rstats #Python
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