Forecasting – Page 3

COVID19 Cases #1 – Latest Data and Trends for England

September 27, 2020 By Nigel Marriott

Last updated on 27th September 2020 but downloadable spreadsheet in section 3a was updated on 19th October 2020. I will update the post when I get the time!

The latest data for COVID19 (Coronavirus) cases in England as of Saturday 26th September 2020 shows the number of people testing positive for COVID19 is up 60% from a week ago but this masks extreme regional disparities that make the national trend meaningless. The North is in the grip of a second wave unlike the South which is not. Unless recent trends in the North abate, the scenario of 50k positive tests per day by the end of October recently postulated by the Chief Scientific Officer remains feasible.

COVID19 Deaths #2 – Are Public Health England’s Figures Misleading?

July 25, 2020 By Nigel Marriott

During the first wave of the COVID19 epidemic, the daily number of deaths published by Public Health England (PHE) has been the main headline in the news. On 17th July, Matt Hancock, Secretary of State for Health, called for a review of this time series after a blog published by Yoon Loke & Carl Heneghan of Oxford University questioned whether definition used by this time series was appropriate. I myself had noticed a change in the PHEr time series in my tracker of COVID19 deaths in England but I hadn’t understood why this might have been the case. After looking at the data again in more detail, I have concluded that this time series is overestimating the number of deaths by 42 +/- 13 per day since the 23rd May and it needs to be revised otherwise it will create confusion should a second wave come.

COVID19 Deaths #1 – Latest Data and Trends for England

July 25, 2020 By Nigel Marriott

Last updated on 25th July 2020 – future updates will be infrequent.

The latest data for deaths due to COVID19 (Coronavirus) in England as of Friday 24th July 2020 show that the first wave of the pandemic is now over when one looks as excess deaths. People will still be dying of COVID19 for weeks yet but the overall number of excess deaths is now negative.

COVID19 Deaths #2H – Estimated Excess Deaths in England up to 26th June

June 28, 2020 By Nigel Marriott

In many countries across the world, the total effect of the Coronavirus pandemic is now being measured using the concept of Excess Deaths. However, publication of such data by the Office of National Statistics for England is up to 2 weeks slower than the daily deaths published by Public Health England. In this post, I update my model which uses the PHE series to estimate what the ONS will publish for excess deaths in England on Tuesday 30th June.

UK General Elections #5 – How accurate are voting intention polls? – updated with GE19

December 29, 2019 By Nigel Marriott

After 3 general elections with severe polling errors, the UK opinion pollsters redeemed themselves in the 2019 UK General Election with their most accurate performance since 1955. I base this statement on data provided by Mark Pack who has systematically recorded every opinion poll published since 1945. The challenge now for the industry is to maintain this level of performance for the next election which may be easier said than done given that 5 out of the last 8 elections have experienced a major polling error.

UK General Election 2019 #2 – My forecast is the most accurate & beats the Exit Poll!

December 16, 2019 By Nigel Marriott

At 2200 on Thursday 12th December 2019, the BBC/ITV/Sky Exit Poll was revealed to the nation and pointed to a large majority for the Conservatives. Unlike 2017, I was able to turn to my wife and say “it looks like I will be right this time!” By the end of the night, Gavin Freeguard from the Institute of Government was tweeting that not only was I the most accurate election forecaster of 2019, I was more accurate than the Exit Poll.

UK General Election 2019 #1 – My Official Forecast

December 12, 2019 By Nigel Marriott

My forecast for the 2019 UK General Election this Thursday is that the Conservatives will win a majority of 72 seats. The margin of error in this forecast is very wide though due to the fact that 5 of of the last 7 general elections have seen a major polling error. If there is a repeat of the GE2017 underestimate of Labour, then there will be another hung Parliament.

Rugby World Cup #4 – Who will win in 2019? – Final

October 30, 2019 By Nigel Marriott

England will take on South Africa in the 2019 Rugby World Cup final this weekend and I am predicting a win for England by 1 to 6 points. In other words, it will be close and exciting!

Rugby World Cup #3 – Who will win in 2019? – Model Evaluation

October 30, 2019 By Nigel Marriott

After 43 matches with 37 correctly predicted, the stage is set for an epic final between England & South Africa to settle the 2019 Rugby World Cup (Men’s). Ahead of making a prediction for that match, I have examined my model in depth and in this post I explore whether or not the model needs to be adjusted.

Rugby World Cup #2 – Who will win in 2019? – Knockout Round

October 18, 2019 By Nigel Marriott

It’s the quarter finals tomorrow and it’s time for me to predict the outcomes using World Rugby’s rankings. Although I got 33 out of 37 matches right in the pool stages, the 4 errors are enough to change my prediction of who will win.