[Taginfo-dev] Fwd: New functions

[Donal Diamond]

On 4 March 2015 at 16:36, Jochen Topf <jochen at remote.org> wrote:

There are a few new functions available in taginfo:
>

Thanks for another great update.

This mailing-list appears to be such low volume as I suspect the other
users just like me rarely have any update or migration issues :-)


> - "Similar" tab in key view and "Similar keys" report. Similarity in this
>   context means one key is a substring of the other (ignoring case) or
>   the Levenshtein distance between keys is <= 3. Keys with three
> characters or
>   less are ignored. The "Similar" tab reports all those keys similar to the
>   given key, the "Similar keys" report only shows rarely used keys that are
>   very similar to common keys. Currently there is no way of tuning the
>   parameters for these checks. Please tell me if you are having problems
>   with the settings for your extract.
>

I found the similar report useful for finding and quickly fixing any typos.
(My taginfo also uses a regional overpass info so it was dead easy to use
the Level0 or Josm links to fix the errors.)

The similar report is less useful now for finding typos as most of the
reports are now for 'name:ga'  vs 'name:xx'
'name:ga:' (Irish language name tag) would have a high count and the other
name:xx tags would have very low counts as they probably only exist on our
country relation.

http://taginfo.openstreetmap.ie/reports/similar_keys



> - "Historic development" report showing numbers of unique keys, tags, and
>   relation types over time. This report uses data accumulated over time in
>   the taginfo-history.db database by each taginfo update run. This data
>   wasn't used until now.
>

I actually used taginfo's  history db to quickly generate a graph of object
(way/node/relation)  growth over time for a friend's 'State of Ireland'
lightning talk.

Might be useful to add that as well.

Thanks again!

Donal
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