Code Snippet Repository

Today, we walk thru a basic machine learning pipeline including a train/test split and make use of a random search to conduct a hyperparameter tuning. This architecture is the backbone of many statistical machine learning tasks and hence usefuls as to keep close-by as a code-snippet!

Code Snippet Repository

Do you need to create pivot tables in Excel, but prefer to work with Python? This is exactly what we are dealing with tody! In this post, we read in a csv file on a zoo’s food expenses and create a pivot table out of it - all in Python!

Code Snippet Repository

In this code snippet, we look at how to edit axis and legend labels in seaborn. While this is a very basic task, it is one I find myself often searching the internet for. To give you (and me) a shortcut to a code example, I created this little post.

Code Snippet Repository

I wrote a little Code Snippet that returns the “California Housing” dataset provided by sklearn as a named pandas dataframe. Ready for you to use in your applications.

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import numpy as np
import pandas as pd
from sklearn.datasets import fetch_california_housing

dict_data = fetch_california_housing()

list_names = dict_data.feature_names
list_names.extend(dict_data.target_names)

data = np.concatenate([dict_data.data, dict_data.target.reshape(-1,1)], axis=1)
df = pd.DataFrame(data=data, columns=list_names)

I need some Data - Now!

Often times, we come up with an idea for a visualization or simply want to try out a new model we have heard off. In short: We need data.

However, this can sometimes become a tedious problem as a real world dataset might need additional cleaning, which can be too much effort for a short test or playing around. Here, a toy dataset can come in handy. There are tons of toy-data sets out there, many good ones presented by the sklearn.dataset module. In the example above I remodel the arrays provided by fetch_california into a pd.DataFrame.

For more information on the “California Housing” dataset visit sklearn.datasets.fetch_california.