You have some data with species names that are stored in capital letters.
You want to capitalize them properly so that the genus starts with a capital letter and the other letters are lower case.
The str_to_sentence function from the stringr package can do this:
library(stringr)
species <- "CYGNUS OLOR"
species_clean <- str_to_sentence(species)
1. Use sapply and str_to_sentence to produce a vector of properly capitalized species names from the following vector of species names:
species <- c("CYGNUS OLOR", "AIX SPONSA", "ANAS ACUTA")
2. Replace sapply with lapply to get the answer as a list instead of a vector.
3. Use lapply to get the properly capitalized species and the use unlist to convert the result to a vector.
Note: this exercise doesn’t technically require the use of an apply function, but we’re going to use one to keep our first use of apply simple.
[click here for output]