Richard Telford’s Blog
@richardjtelford
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- Resampling Assemblage Counts
- A demo targets plan for reproducible pipelines for Neotoma data
- Reproducibility of high resolution reconstruction – one year on
- Simplistic and Dangerous Models
- COVID-19, climate and the plague of preprints
- Erroneous information … was given
- Making a pollen diagram from Neotoma
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Author Archives: richard telford
Resampling Assemblage Counts
Imagine that one diatom assemblage has 20 species and another has 25, but the more species rich assemblage also has more diatoms counted.A fair comparison of the richness of each assemblage can only be made when the number of individuals … Continue reading
A demo targets plan for reproducible pipelines for Neotoma data
In any analysis, there are a series of steps: data importing, cleaning, analysis, creating figures, and then putting it all together in an manuscript. Very often, some of these steps are time consuming, and you don’t want to rerun everything … Continue reading
Reproducibility of high resolution reconstruction – one year on
It is about a year since my paper discussing the reproducibility of high resolution reconstructions was finally published, so I thought I should give a full account of what has happened since. Nothing. None of the authors of the papers … Continue reading
Posted in Peer reviewed literature, reproducible research, transfer function
Tagged chironomids
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Simplistic and Dangerous Models
A few weeks ago there were none. Three weeks ago, with an entirely inadequate search strategy, ten cases were found. Last Saturday there were 43! With three inaccurate data points, there is enough information to fit an exponential curve: the prevalence … Continue reading
COVID-19, climate and the plague of preprints
Many diseases have geographically variability in prevalence or seasonal variability in epidemics, which may, directly or indirectly, be causally related to climate. Unfortunately, the nature of the relationship with climate is not always clear. With the recent outbreak of COVID-19, … Continue reading
Erroneous information … was given
By coincidence, days after I wrote about the apparently very low midge counts in Hiidenvesi, the authors published a correction. Erroneous information considering Chironomidae and Chaoboridae accumulation was given in Figure 4 published in Luoto et al. (2017). Therefore, it … Continue reading
Posted in Peer reviewed literature, transfer function
Tagged chironomids, Luoto et al (2017)
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Making a pollen diagram from Neotoma
Last week I gave a course on R for palaeoecologists covering data handling using tidyverse, reproducibility and some some ordinations and transfer functions. One of the exercises was to download some pollen data from Neotoma and make a pollen diagram. … Continue reading
Count sums – the preprint
I wandered lonely as a cloud That floats on high o’er vales and hills, When all at once I saw a crowd, A host, of golden chironomids; Beside the lake, beneath the trees, Fluttering and dancing in the breeze. Continuous … Continue reading
Count-less chironomids?
Most papers that present microfossil assemblages report (not always accurately) the minimum number of microfossils that were counted in each sample, an important indicator of the precision of the data. Some do not. For these papers, the reader should be … Continue reading
Tools for a reproducible manuscript
It is all too easy to make a mistake putting a manuscript together: mistranscribe a number, forget to rerun some analyses after the data are revised, or simply bodge the round some numbers. Fortunately it is possible to avoid these … Continue reading
Musings on Quantitative Palaeoecology 