direction_check: Checks if there is a point at given location
In EmilHvitfeldt/ggtetris: Create Tetris Chart Visualizations in R

Description Usage Arguments Value Examples

This function checks if one of the rows in X is equal to the sum of the i-1'th edge and vec.

1	direction_check(X, i, edges, vec)

`X`	A data.frame with two columns, named x and y respectively.
`i`	Numerical. current index.
`edges`	A data.frame with two columns, named x and y respectively.
`vec`	A vector of length 2.

Logical.

edges <- data.frame(x = c(1, 1, 1),
                    y = c(1, 2, 3))
i <- 3
X <- data.frame(x = c(1, 1, 1),
                y = c(1, 2, 3))

vec <- c(0, 1)

direction_check(X, i, edges, vec)