Combining pipes and the magrittr dot (.) placeholder

Question

I am fairly new to R and I am trying to understand the %>% operator and the usage of the \" .\" (dot) placeholder. As a simple example the follo

Answer 1

This is the problem:

. = data.frame(x = 5)
a = data.frame(x = 5)

a %>% is.data.frame
#[1] TRUE
. %>% is.data.frame
#Functional sequence with the following components:
#
# 1. is.data.frame(.)
#
#Use 'functions' to extract the individual functions. 

Looks like a bug to me, but dplyr experts can chime in.

A simple workaround in your expression is to do .[] %>% is.data.frame.