Skip to content

Phil's Hiking Resources

Combining hills from two different bagging lists


Adding two lists together

Adding two Lists

Adding two ListsAdding Lists Together

As well as searching for hills based on their bagging type (specified by the “?list=” URL filter), a second hill type filter can be added (as “&list2=“) to give the total listing of two types of hill. This is the equivalent of adding the two lists together or the “union” of the two sets.

Only hills in both lists

Hills in Both Lists

Hills in Both Lists

And if you use this in conjugation with display=onlyhillsinbothlists you can get the sub-set of hills which only belong to both lists (the intersection of the two sets).

Subtracting one list from another

Subtracting Hills from List

Subtracting Hills from List

Finally there is a new option of  display=hillsnotinlist2 which gives you the sub-set of the hills from the main list but excluding those that are in list 2. The is equivalent of subtracting the 2nd list from the first.

More Options…

Read about more hill hill filters here…
www.haroldstreet.org.uk/other/?page_id=392

or try them out in combination here…
www.haroldstreet.org.uk/waypoints/search.php

 


Author: Phil Newby

2 responses to “Combining hills from two different bagging lists”

  1. Wanderer says:

    Hi, my addiction for the Lake District fells keeps growing as my years age! I have a question (among many) about The Definitive list of Lake District Summits: what characteristic of a hill (some are really “small humps” on the landscape, but still interesting and have taken me to some wonderful places), sorry what characteristics of a hill/fell makes it an entrant onto the list? I have scaled 1,100 plus, but the list keeps growing and I want to complete, finish before my wandering days are ended!! Keep up the good work

  2. Phil Newby says:

    Hi thanks – the definitive list is often changing and may never be finished.
    New LIDAR data gives increasing accuracy of measurment of various lumps and bumps and their prominance from other lumps and bumps.
    It could go on forever!
    phil

Leave a Reply

Your email address will not be published. Required fields are marked *


The reCAPTCHA verification period has expired. Please reload the page.


Author: Phil Newby