Instructor Notes

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Introduction to R and Rstudio


The second one


Reading in data


Tidy data


Issues with this dataset:

  • Doesn’t start in cell A1
  • Column names don’t describe contents - information is missing. What do the numbers represent? Better column name would be ‘count’ or similar
  • Used a mixture of words and numbers in a column

To make it tidy:

  • Columns should be ‘batch’ and ‘count’ (or whatever is being measured)
  • Start at cell A1
  • How to deal with missing values? As a separate table?
  • Or we could have batch 1 and batch 2 as two separate tables

Data wrangling


Data visualization


Bioconductor and other bioinformatics packages


Using R markdown for notebooks and documents


Version control with git


Case study