Sarka Pribylova


Email: sarka.pribylova@gmail.com

# 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...

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

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

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

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

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

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

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

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

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

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

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

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

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

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...

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

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

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

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

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

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...

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...

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