Introduction to resampling methods Tushar Shanker Data Scientist - - PowerPoint PPT Presentation

introduction to resampling methods
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Introduction to resampling methods Tushar Shanker Data Scientist - - PowerPoint PPT Presentation

DataCamp Statistical Simulation in Python STATISTICAL SIMULATION IN PYTHON Introduction to resampling methods Tushar Shanker Data Scientist DataCamp Statistical Simulation in Python Resampling workflow DataCamp Statistical Simulation in


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DataCamp Statistical Simulation in Python

Introduction to resampling methods

STATISTICAL SIMULATION IN PYTHON

Tushar Shanker

Data Scientist

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SLIDE 2

DataCamp Statistical Simulation in Python

Resampling workflow

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DataCamp Statistical Simulation in Python

Why resample?

Advantages Simple implementation procedure. Applicable to complex estimators. No strict assumptions. Drawbacks Computationally expensive.

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DataCamp Statistical Simulation in Python

Types of resampling methods

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DataCamp Statistical Simulation in Python

Let's practice!

STATISTICAL SIMULATION IN PYTHON

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DataCamp Statistical Simulation in Python

Bootstrapping

STATISTICAL SIMULATION IN PYTHON

Tushar Shanker

Data Scientist

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SLIDE 7

DataCamp Statistical Simulation in Python

Easter eggs

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DataCamp Statistical Simulation in Python

Easter eggs

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DataCamp Statistical Simulation in Python

Bootstrapping Easter eggs

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DataCamp Statistical Simulation in Python

Bootstrapped distribution

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DataCamp Statistical Simulation in Python

Bootstrap - Good to know

Run at least 5-10k iterations. Expect an approximate answer. Consider bias correction.

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DataCamp Statistical Simulation in Python

Let's practice!

STATISTICAL SIMULATION IN PYTHON

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DataCamp Statistical Simulation in Python

Jackknife resampling

STATISTICAL SIMULATION IN PYTHON

Tushar Shanker

Data Scientist

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DataCamp Statistical Simulation in Python

Easter eggs

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DataCamp Statistical Simulation in Python

Easter eggs

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DataCamp Statistical Simulation in Python

Jackknifing Easter eggs

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DataCamp Statistical Simulation in Python

Jackknife estimate

Jackknife Estimate Variance of Jackknife Estimate

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DataCamp Statistical Simulation in Python

Jackknife vs Bootstrap

Jackknife Mean Weight = 51g 95% CI = [33.36g, 68.64g] Bootstrap Mean Weight = 50.8g 95% CI = [35g, 67.03g]

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DataCamp Statistical Simulation in Python

Let's practice!

STATISTICAL SIMULATION IN PYTHON

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DataCamp Statistical Simulation in Python

Permutation testing

STATISTICAL SIMULATION IN PYTHON

Tushar Shanker

Data Scientist

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DataCamp Statistical Simulation in Python

Steps involved

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DataCamp Statistical Simulation in Python

Steps involved

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DataCamp Statistical Simulation in Python

Discussion

ADVANTAGES

Very flexible No strict assumptions Widely applicable

DRAWBACKS

Computationally Expensive Custom coding required

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DataCamp Statistical Simulation in Python

Donation website

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DataCamp Statistical Simulation in Python

Let's practice!

STATISTICAL SIMULATION IN PYTHON