# Statistics with R - Beginner Level

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Обучение платное
Сертификация бесплатная
3 часа курса
О курсе

If you want to learn how to perform the basic statistical analyses in the R program, you have come to the right place.

Now you don’t have to scour the web endlessly in order to find how to compute the statistical indicators in R, how to build a cross-table, how to build a scatterplot chart or how to compute a simple statistical test like the one-sample t test. Everything is here, in this course, explained visually, step by step.

So, what will you learn in this course?

First of all, you will learn how to manipulate data in R, to prepare it for the analysis: how to filter your data frame, how to recode variables and compute new variables.

Afterwards, we will take care about computing the main statistical figures in R: mean, median, standard deviation, skewness, kurtosis etc., both in the whole population and in subgroups of the population.

Then you will learn how to visualize data using tables and charts. So we will build tables and cross-tables, as well as histograms, cumulative frequency charts, column and mean plot charts, scatterplot charts and boxplot charts.

Since assumption checking is a very important part of any statistical analysis, we could not elude this topic. So we’ll learn how to check for normality and for the presence of outliers.

Finally, we will perform some basic, one-sample statistical tests and interpret the results. I’m talking about the one-sample t test, the binomial test and the chi-square test for goodness-of-fit.

So after graduating this course, you will know how to perform the essential statistical procedures in the R program. So… enroll today!
Программа
Introduction
Here we will talk about the goals of this course: what you will learn and how the course is structured.
Introduction
Data Manipulation in R
How to filter and sort your data, recode your variables and compute new variables
Filtering Data Using Brackets
How to filter your data frames with brackets (in base R).
Filtering Data With the Subset Command
How to filter your data frames using subsets.
Filtering Data With dplyr
How to filter your data set using the dplyr package
Recoding Categorical Variables
How to recode categorical variables in R
Recoding Continuous Variables
How to recode continuous variables in R
Sorting Data Frames
How to sort data sets using various criteria
Compute New Variables
How to compute new variables based on the existing ones
R Codes File for the First Chapter
All the codes used in the lectures 2-8, for your reference
Practical Exercises for the First Chapter
Practical exercises for the lectures 2-8
Требования
• R and R studio
• knowledge of basic statistics
Что Вы изучите?
• manipulate data in R (filter and sort data sets, recode and compute variables)
• compute statistical indicators (mean, median, mode etc.)
• determine skewness and kurtosis
• get statistical indicators by subgroups of the population
• build frequency tables
• build cross-tables
• create histograms and cumulative frequency charts
• build column charts, mean plot charts and scatterplot charts
• build boxplot diagrams
• check the normality assumption for a data series
• detect the outliers in a data series
• perform univariate analyses (one-sample t test, binomial test, chi-square test for goodness-of-fit)
Лекторы
Bogdan Anastasiei
University Teacher and Consultant

My name is Bogdan Anastasiei and I am an assistant professor at the University of Iasi, Romania, Faculty of Economics and Business Administration. I teach Internet marketing and quantitative methods for business. I am also a business consultant. I have run quantitative risk analyses and feasibility studies for various local businesses and been implied in academic projects on risk analysis and marketing analysis. I have also written courses and articles on Internet marketing and online communication techniques. I have 24 years experience in teaching and about 15 years experience in business consulting.

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