Questions tagged [transformation]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
-1
votes
0answers
14 views

Find the best data transformation, automatically, before looking for the best algorithm

Imagine a binary classification problem with 10 features. We draw a scatter plot for each pair of features and we color by class. In the end, our observation didn't show any clear separation between ...
1
vote
1answer
24 views

Are we allowed to transform the continuous target variable by creating a log transformation in order to have a normal distribution?

The following code gives the target variable Item_Outlet_Sales before transformation and Item_Outlet_Sales_log which is transformed ...
0
votes
1answer
17 views

Condense matrix of values into one column?

I have a dataset where I have unnecessarily duplicated column variables that I want to condense down. I wish the output wasn't so clumsy and I've already had to do some work to transform it and make ...
1
vote
0answers
40 views

why do we need re-scaling ? Is it necessary for all types of data including interval and frequencies

Re-scaling seems to have become a fashionable technique. The methods have propped up to deal with several types of data. Moreover,it is applied without much of context. Should we use it for only ...
1
vote
1answer
26 views

Anonymize continuous variable for masking purposes

I am about to kick off a large hackathon event. We have a dataset that is comprised of one continuous variable with high precision, and a number of categorical variables qualifying these data 3-levels ...