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Nigel Marriott's Blog

An independent statistician using data to understand our world and to predict the future

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UK Weather Trends #26 – Spring 2023

June 6, 2023 By Nigel Marriott

Spring 2022 was warmer than usual and was mostly typical of the springs that we now get due to our changing climate.

[Read more…] about UK Weather Trends #26 – Spring 2023

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

Pay Gap Trends #6 – Are we there yet?

May 10, 2023 By Nigel Marriott

Has 6 years of mandatory gender pay gap reporting (GPGR) made a dent in the UK’s gender pay gap?  According to a recent BBC article, not one bit at all.  Unfortunately, too many people on social media have been taken in by this misleading article and I will be submitting a formal complaint to the BBC soon to get it amended.  I rebutted this at the time with this LinkedIn post and I will now expand on that here to show what the true trend is and whether or not mandatory pay gap reporting has had an impact.

[Read more…] about Pay Gap Trends #6 – Are we there yet?

Filed Under: Diversity, Forecasting Tagged With: Gender Pay Gap, Median, ONS, pay gap trends, trend analysis, Trend extrapolation

UK Weather Trends #25 – Winter 2023

March 2, 2023 By Nigel Marriott

Winter 2023 was the 10th sunniest on record but I doubt we may have noticed.  There are indications now that our winters are entering a new era of being warm, wet & sunny.

[Read more…] about UK Weather Trends #25 – Winter 2023

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

UK Weather Trends #24 – Annual Temperatures in 2022

January 3, 2023 By Nigel Marriott

The 2022 calendar year was the hottest year on record in the UK beating the previous high recorded in 2014.  Does that mean that the UK is starting a new warming phase?  Using a technique known as a Control Chart, I show the answer is “Not Yet“.

[Read more…] about UK Weather Trends #24 – Annual Temperatures in 2022

Filed Under: Weather Tagged With: SPC, Statistical Process Control, t-test, temperature, trend analysis, Weather, weather trends

UK Weather Trends #23 – Autumn 2022

December 4, 2022 By Nigel Marriott

The UK autumn in 2022 was the 3rd warmest on record and consistent with the step change in autumnal climate seen 25 years ago.

[Read more…] about UK Weather Trends #23 – Autumn 2022

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

UK Weather Trends #22 – Summer 2022

September 7, 2022 By Nigel Marriott

The 2022 UK summer was the 4th warmest & 9th driest on record.  When looked at using principal components, the summer was definitely a good one and showed up yet again my inability to predict good summers!

[Read more…] about UK Weather Trends #22 – Summer 2022

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

UK Weather Trends #21 – Spring 2022

June 7, 2022 By Nigel Marriott

Spring 2022 was the 5th warmest on record and was mostly typical of the springs that we now get due to our changing climate.

[Read more…] about UK Weather Trends #21 – Spring 2022

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

Pay Gap Trends #5 – Has pay gap reporting narrowed the gender pay gap?

May 13, 2022 By Nigel Marriott

Disinterested employers were 20% less likely than engaged employers to have narrowed their UK gender pay gap between 2017 & 2021 .  I draw this conclusion from a statistical model using ~6,000 employers which removed the effect of confounders such as size, sector, furlough, gender ratio, etc.  Once accounted for, I found 61% of those reporting their pay gap for 2019 had narrowed their pay gap by 2021 compared to 55% of those not reporting 2019 data.

[Read more…] about Pay Gap Trends #5 – Has pay gap reporting narrowed the gender pay gap?

Filed Under: Diversity Tagged With: Gender Pay Gap, GLM, logistic regression, pay gap trends, Pay Modelling, trend analysis

UK Weather Trends #20 – Winter 2022

March 4, 2022 By Nigel Marriott

Winter 2022 was the 8th warmest on record and was typical of the winters that we now get due to our changing climate.

[Read more…] about UK Weather Trends #20 – Winter 2022

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

UK Weather Trends #19 – Autumn 2021

December 4, 2021 By Nigel Marriott

The UK autumn in 2021 was the 3rd warmest on record and consistent with the step change in autumnal climate seen 25 years ago.

[Read more…] about UK Weather Trends #19 – Autumn 2021

Filed Under: Archive Tagged With: multivariate data, Presenting data, principal components analysis, standardisation, trend analysis, Weather, weather trends, z-scores

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Pay Gap Trends #9 – Employer Gender Pay Gaps in 2025 – The Numbers

The deadline for employers to submit their 2025 gender pay gap data has now passed.  So what do the … [Read More...] about Pay Gap Trends #9 – Employer Gender Pay Gaps in 2025 – The Numbers

Pay Gap Data #9 – Where can I find gender pay gap data for 2025?

The government requires nearly all employers with a headcount of 250 or more on their snapshot date … [Read More...] about Pay Gap Data #9 – Where can I find gender pay gap data for 2025?

UK Weather Tracker #110 – March 2026

The UK weather in March was the 10th warmest on record but otherwise unremarkable. … [Read More...] about UK Weather Tracker #110 – March 2026

UK Weather Trends #40 – Winter 2026

Winter 2026 in the UK was warmer, wetter and darker than normal but not the extent I expected given … [Read More...] about UK Weather Trends #40 – Winter 2026

UK Weather Tracker #109 – February 2026

The UK weather in February was warm, wet and dark for this time of year.  We also had the 2nd lowest … [Read More...] about UK Weather Tracker #109 – February 2026

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