## Rollin', rollin', rollin' on the river

Posted on May 14, 2017

Caluclate Rate of Change, aka ROC
Tidyways ….
The TTR way
Conclusion
Calculate Simple Moving Average
TTR package
the Zoo package
RcppRoll package
RollingWindows
The Roll package
Conclusion

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Tags:
tidyverse, xts, zoo, RccpRoll, RollingWindows, ROC, benchmark

## Using the purrr package to write children book

Posted on May 11, 2017

Some time back in the #rstat twitter-verse, there was a silly challenge thrown out there to see who could use the map functions from the purrr package to write one of the famous children book. It did took me quite a while to have it right to the punction and...

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Tags:
purrr, entertainment

## Logistic Regression Part 1

Posted on March 15, 2017

Introduction
The logistic equation.
Performance of Logistic Regression Model.
Setting up
Example 1
Modeling
ROC and cutoff point
AUC
References

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Tags:
classification, regression, tidyverse, ROC, AUC

## Comparative Returns of Regional ETF

Posted on March 7, 2017

Getting the data
Create a Rate of Change graph

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Tags:
finance, quantmod, tidyverse, graphs

## Mushroom Classification - What makes them edible?

Posted on January 16, 2017

Import the data
Tidy the data
Understand the data
A. Transform the data
A. Visualize the data
A. Modeling
A. Use of Regression Tree
A. Use of Random Forest
A. Use of SVM
Communication

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Tags:
CART, RandomForest, Classification, SVM