Find nearest X number of points.

Find nearest X values between each starting point in x and possible end points, y.

dist_nearest_x(
  x_df,
  y_df,
  num_nearest = 10L,
  x_id = "id",
  y_id = "id",
  x_lon_col = "lon",
  x_lat_col = "lat",
  y_lon_col = "lon",
  y_lat_col = "lat",
  dist_function = "Haversine"
)

Arguments

x_df

DataFrame with starting coordinates

y_df

DataFrame with ending coordinates

num_nearest

The number of closest points to return

x_id

String name of unique identifer column in x_df

y_id

String name of unique identifer column in y_df

x_lon_col

String name of column in x_df with longitude values

x_lat_col

String name of column in x_df with latitude values

y_lon_col

String name of column in y_df with longitude values

y_lat_col

String name of column in y_df with latitude values

dist_function

String name of distance function: "Haversine" (default) or "Vincenty"

Value

DataFrame with id of X closest points and distance in meters