Author Archives: richard telford

About richard telford

Ecologist with interests in quantitative methods and palaeoenvironments

Autocorrelation in the testate amoeba calibration set

Amesbury et al examine the autocorrelation in their huge calibration set. I thought I would do the same, increasing the resolution of the analysis to get a better handle on what is going on. This is an RNE plot. It … Continue reading

Posted in Palaeohydrology, Peer reviewed literature, transfer function | Tagged , , | Leave a comment

Testing testate amoeba: some comments on Amesbury et al (2018)

Today, I have been reading and thinking about a new paper presenting a huge testate-amoeba calibration set for reconstructing water table depth in bogs (Amesbury et al 2018). This calibration set, with almost 2000 samples, is the synthesis of many … Continue reading

Posted in Palaeohydrology, Peer reviewed literature, transfer function | Tagged , | 1 Comment

Introducing ggpalaeo

I’ve put some code I used for plotting figures for my soon-to-be-resubmitted manuscript into a package because I thought it might be useful to others. The main use of ggpalaeo is to make ggplot2 plots of transfer function diagnostics from … Continue reading

Posted in R, transfer function | Tagged | 3 Comments

The elevation of Lake Tilo

For my PhD, I studied the palaeolimnology of two lakes in the Ethiopian rift valley, using diatoms to reconstruct changes in the water chemistry of Lake Awassa, an oligosaline caldera lake which retains its low salinity despite having no effluent … Continue reading

Posted in Data manipulation, Palaeohydrology, R, Uncategorized | Tagged , , | Leave a comment

Conference abstract deadlines

“I love deadlines. I love the whooshing noise they make as they go by.” Douglas Adams When I go to a conference, I want to present my most recent relevant work. But often the deadline for abstract submission is months … Continue reading

Posted in meta science | Tagged | 1 Comment

No new data no comment at Nature Communications

Of all the modes of post-publication peer review, comments published in the same journal as the original article are the most visible, and because they have survived editorial and reviewer scrutiny, carry at least modicum of credibility. Unfortunately, comments are … Continue reading

Posted in Peer reviewed literature | Tagged , | 3 Comments

Insist() on the text and numbers agree in Rmarkdown

The manuscript I submitted a long time ago contains multiple sentences where I describe the result with both text and numbers. For example: With a three-year moving average, the correlation is weak (r = 0.21) and not statistically significant (p … Continue reading

Posted in R, reproducible research | Tagged | Leave a comment