def custom_transform(data): """ Transform the `spiral.csv` data such that it can be more easily classified. To pass test_custom_transform_hard, your transformation should create at most three features and should allow a LogisticRegression model to achieve at least 90% accuracy. You can use free_response.q2.visualize_spiral() to visualize the spiral as we give it to you, and free_response.q2.visualize_transform() to visualize the 3D data transformation you implem
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
def custom_transform(data):
"""
Transform the `spiral.csv` data such that it can be more easily classified.
To pass test_custom_transform_hard, your transformation should create at
most three features and should allow a LogisticRegression model to achieve
at least 90% accuracy.
You can use free_response.q2.visualize_spiral() to visualize the spiral
as we give it to you, and free_response.q2.visualize_transform() to
visualize the 3D data transformation you implem
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