Herald-DigiPoll on the nail

The snap Herald-DigiPoll survey taken on the weekend before the election - the first to show the impact of United's Peter Dunne - was the most accurate of the polls published in the final week of the campaign.

The snap poll showed 6.6 per cent support for United Future, which received 6.8 per cent of the vote on election night.

Though the sample of 512 was smaller than the usual DigiPoll surveys, it came closer than later, larger polls to predicting the actual results across all the six parties that won seats in Parliament.

The weekend poll found support for Labour 0.6 percentage points lower than Labour's election night result (41.4 per cent).

The results for NZ First and the Greens were accurate to within 0.4 per cent of the election-night figures.

Those for Act were 1 percentage point above what it finally received and National 2.5 points higher.

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