Albert Rapp

Welcome

Preliminaries

Download Area

Lesson 01: Change letters with str_to()

Lesson 02: Find texts with str_detect(), str_subset() & str_which()

Lesson 03: Check beginnings and ends with str_begins() and str_ends()

Lesson 04: Using the negate argument

Lesson 05: Removing unwanted texts with str_remove()

Lesson 06: Trim and pad your strings

Lesson 07: Concatenate strings

Lesson 08: glue & epoxy

Lesson 09: Replace texts with str_replace()

Lesson 09: Replace texts with str_replace()

Lesson 10: Split strings with str_split()

Lesson 11: Split columns with seperate_wider_delim()

Lesson 12: RegEx: The "Or" operator and grouping parantheses

Lesson 13: RegEx: The . operator and escaping it

Lesson 14: RegEx: Find specific substrings and use it to split columns

Lesson 15: RegEx: Split text columns with separate_wider_regex()

Lesson 16: RegEx: Create a collection of patterns to look for

Lesson 17: RegEx: Looking for optional texts and non-grouping parantheses

Lesson 18: RegEx: e-use the matching groups

Lesson 19: RegEx: Match an exact number

Lesson 20: RegEx: The * operator

Lesson 21: RegEx: Match things at the beginning and end of the text

Lesson 22: RegEx: The "not" operator

Lesson 23: RegEx: Special collections

Lesson 24: RegEx: Find matches that are not preceeded by something