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Mar 20, 2022

Python - Probability - Dice rolls sum

# You roll together 5 fair, six-sided dices. # 1. What is the probability that the sum of the five dices is equal to 19 ? 13.9% # 2. What...

Mar 12, 2022

Python and PySpark - Credit score - Loan propensity

Sample datafile is providing numerical and categorical variables for each case id. We can calculate final score for each case id and see...

Mar 3, 2022

PySpark - Linear regression for categorical features

# PySpark # LINEAR REGRESSION FOR CATEGORICAL FEATURES !pip install pyspark pip install findspark import findspark # Use pandas to import...

Feb 28, 2022

PySpark - Data Frame Basic Operations in Google Colaboratory

# PySpark - Data Frame !pip install pyspark pip install findspark import findspark # Use pandas to import csv import pandas as pd...

Feb 28, 2022

PySpark - Mac Terminal Commands

Below are the basic Mac Terminal Commands to set up Anaconda, PySpark and Java on Mac for Jupyter or Colaboratory. 1. Revise in Terminal...

Feb 17, 2022

Python - Time Series Forecast - 5. Regression

Time Series Forecast Steps: 1. Identification of time series type 2. Seasonality tests 3. Stationarity tests 4. Decomposition 5....

Feb 17, 2022

Python - Time Series Forecast - 3. Stationarity

Time Series Forecast Steps: 1. Identification of Time Series Type 2. Seasonality Tests 3. Stationarity Tests 4. Decomposition 5....

Feb 16, 2022

Python - Time Series Forecast - 4. Decomposition

There are many types of time series based on data: additive, multiplicative, other temporal structures. Before time series forecast we...

Jan 28, 2022

Python - Classification - Random Forest

Many years ago I used the Random Forest methodology in R Studio to calculate the feature importance in Coffee Data Set. Random forests...

Jan 24, 2022

Python - fizzbuzz function

Fizz Buzz is an old group word game for children. It is a very simple programming task, used in software developer job interviews, to...

Jan 23, 2022

Python - RFM segmentation - Retail example

RFM segmentation is the basic customer segmentation based on recency, frequency and monetary value of customer. Recency (R): When was the...

Nov 15, 2021

Python - chatbot - nltk

Chatbot characteristics are small data set, very simple analytics and primitive communication function. The first chatbots were ...

Nov 15, 2021

Python - www operations - advertools

We can analyze marketing productivity, keywords, searched data, tables, information by google, e.g. on wikipedia, audience, marketing...

Nov 9, 2021

Python - Text CAPTCHA - captcha

CAPTCHA / Completely Automated Public Turing test to tell Computers and Humans Apart / package is for authentication, provides entry to...

Sep 20, 2021

Python - Next word prediction - nltk

We can change customer attention in text document. If we use in an article more words, which are focused on group, a reader will focus...

Sep 13, 2021

Python - Triplets, Coprime and Prime numbers

Lets remember some easy calculation, either prime numbers, coprime numbers or triplets are important part of a base for more...

Aug 13, 2021

Python - Sentiment Analytics - Tweepy

There are many areas, how sentiment analytics could bring better business performance. Python offers various approaches to sentiment and...

Jul 26, 2021

Python - Economics - Capital Intensity - Line Chart - Matplotlib

There are 3 basic types of market efficiency: allocative, operational and informative. Assets per employee is one of many operational...

Jul 21, 2021

Python - Bar Chart - Matplotlib

Basic Bar Chart example to compare Total Assets by Bank in years 2011 - 2020. from pandas import read_csv from matplotlib import pyplot...

Jul 19, 2021

Finance - Annual Report - Dictionary

Assets under management - client assets under management. Basic earnings per share - basic EPS = (Net income – Preferred dividend) /...

Jul 3, 2021

R Studio - Text Analytics - Corpus Inspection

There are several areas in R Studio Text Analytics, which can be examined. One of the main tasks is to explore the text Corpus. I use the...

Jun 13, 2021

R Studio - Proportion Data - Survfit, Survreg

The R Book ( Michael Crawley, ISBN: 978-0-470-97392-9 ) and its chapter 16 inspired me to run the code and pick up the most suitable...

May 23, 2021

Python and R Studio - Comparison

May 21, 2021

Python - Binary Bootstrap Sample

The code provides Yes/No prediction, fitting binary bootstrap sample for mistakes in data entries. Leo Breiman was (1928 – 2005)...

Sarka Pribylova Email: sarka.pribylova@gmail.com

Sarka Pribylova

Email: sarka.pribylova@gmail.com