# Using Descriptive Statistics to Analyze Data in R

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Neste projeto guiado, você irá:

Learn how to calculate descriptive statistical metrics in order to describe a dataset in basic R

Create a data quality report file (exported to Excel in CSV format) from a dataset loaded in R

1.5 hours
Básico
Vídeo em tela dividida
Inglês
Apenas em desktop

By the end of this project, you will create a data quality report file (exported to Excel in CSV format) from a dataset loaded in R, a free, open-source program that you can download. You will learn how to use the following descriptive statistical metrics in order to describe a dataset and how to calculate them in basic R with no additional libraries. - minimum value - maximum value - average value - standard deviation - total number of values - missing values - unique values - data types You will then learn how to record the statistical metrics for each column of a dataset using a custom function created by you in R. The output of the function will be a ready-to-use data quality report. Finally, you will learn how to export this report to an external file. A data quality report can be used to identify outliers, missing values, data types, anomalies, etc. that are present in your dataset. This is the first step to understand your dataset and let you plan what pre-processing steps are required to make your dataset ready for analysis. Note: This course works best for learners who are based in the North America region. We’re currently working on providing the same experience in other regions.

### Habilidades que você desenvolverá

Data QualityStatisticsR Programming

## Aprender passo a passo

Em um vídeo reproduzido em uma tela dividida com a área de trabalho, seu instrutor o orientará sobre esses passos:

1. Load and view a real-world dataset in RStudio

2. Calculate “Measure of Frequency” metrics

3. Calculate “Measure of Central Tendency” metrics

4. Calculate “Measure of Dispersion” metrics

5. Use R’s in-built functions for additional data quality metrics

6. Create a custom R function to calculate descriptive statistics on any given dataset

7. Export the results of the descriptive statistics to a data quality report file

## Como funcionam os projetos guiados

Sua área de trabalho é um espaço em nuvem, acessado diretamente do navegador, sem necessidade de nenhum download

Em um vídeo de tela dividida, seu instrutor te orientará passo a passo

## Perguntas Frequentes – FAQ

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