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Nigel Marriott's Blog

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

You are here: Home / Archives for trend analysis

UK Weather Trends #27 – Summer 2023

September 10, 2023 By Nigel

The hottest June on record resulted in the 8th warmest summer on record in the UK.  However, rain and sunshine levels were normal sowhen looking at the summer using principal components, the 2023 summer was above average but not outstanding.

[Read more…] about UK Weather Trends #27 – Summer 2023

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

UK Weather Trends #26 – Spring 2023

June 6, 2023 By Nigel

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: Weather 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

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

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: Weather 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

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

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: Weather 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

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: Weather 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

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

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

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

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More blogs

UK Weather Trends #27 – Summer 2023

The hottest June on record resulted in the 8th warmest summer on record in the UK.  However, rain … [Read More...] about UK Weather Trends #27 – Summer 2023

UK Weather Tracker #79 – August 2023

A warmer than normal but otherwise unremarkable weather in August brings the 2023 UK meteorological … [Read More...] about UK Weather Tracker #79 – August 2023

UK Weather Tracker #78 – July 2023

The UK weather gods followed up the hottest June on record with the 5th wettest July on record.  In … [Read More...] about UK Weather Tracker #78 – July 2023

Pay Gap Data #6 – Where can I find gender pay gap data for 2022?

This post was updated on 9th July 2023 with the latest data The government requires all … [Read More...] about Pay Gap Data #6 – Where can I find gender pay gap data for 2022?

UK Weather Tracker #77 – June 2023

June 2023 was the hottest on record in the UK.  It was also the 4th sunniest & 7th widest … [Read More...] about UK Weather Tracker #77 – June 2023

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