Category Archives: Uncategorized

Dunedin Central Ward Elections 2016

So the preliminary election results out, and Dunedin uses the Single Transferable Vote system. This is both fiendishly complicated to calculate the outcome, and also potentially quite frustrating for voters. On the flip side, it is supposed to produce a … Continue reading

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Is solar generation increasing? (Yes) The perils of cumulative totals

This graph was tweeted by Greenpeace As the price of #solar plummets, installations skyrocket. http://t.co/qh4XKMAa8U pic.twitter.com/1k7rjZyk06 — Greenpeace (@Greenpeace) April 16, 2015 Which immediately brought me back to a recent Stats Chat post on cumulative totals. Cumulative totals tend to go … Continue reading

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No to faster motorway speeds.

Driving fast is fun. I’ve enjoyed Italian and French motorways at 130km/h, and the Germany Autobahn at the maximum speed attainable by the small Nissan I was driving (~190km/h). But is it a good idea? For new motorways in New … Continue reading

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More rambling on polls & bias (UPDATED)

I should clarify that my post yesterday was not intended to produce another poll of polls, but to explore differences between polling companies. As one commenter suggested, making a line more sensitive would probably be more interesting/useful for a poll … Continue reading

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Thoughts on poll bias

Stuff’s headline this morning National Back on Track, got me thinking a bit more about poll bias. Partly because the Fairfax Ipsos poll seems to have much higher numbers for National, and also because of the nice work presented by … Continue reading

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Drain Water Heat Recovery – We’ve ordered one!

Three years ago, I wrote about my discovery of drain water heat recovery (also known as grey water heat recovery). Simply put, they appear to offer the same energy savings as a solar hot water system, but for a tiny … Continue reading

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Roy Morgan predicting National landslide?

UPDATE: This post was written early yesterday (Monday), but I chickened out of posting it, because I thought it was too much of a ballsy call. However, Roy Morgan are themselves making the call, so I think it is worthy … Continue reading

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