CoDaWork2019

The 8th international workshop on compositional data analysis,
Terrassa, 3-8 June, 2019.

[Ernest Pons @eponsf]

📌 Convocatòria d'ajudes econòmiques de la @SEIO_ES per assistir al congrés CoDaCourse de juliol del 2020 a l'@univgirona cc/ @socestadistica. Més informació sobre el congrés 👉 https://t.co/wSrp7t67x0

[Fatine Ezbakhe @fatineezbakhe]

I am really excited to be defending my PhD dissertation, on decision analysis under uncertainty for #sustainabledevelopment, this Thursday 31st October at 9.30 at the @la_UPC!

If you are in Barcelona, please feel free to join! 😃

[Prof. Feynman @ProfFeynman]

"Education isn't something you can finish."

-- Isaac Asimov (1920 - 1992)

[Sayed Tabatabai, M.D. @TheRealDoctorT]

The medical student shadowing me looks over my clinic schedule. She sighs exaggeratedly.

“Doctor T, your YOUNGEST patient today is 70. Don’t you get tired of only seeing older patients?”

I look down at my patient list, and smile.

I don’t see what she sees... 1/

[Andrew Althouse @ADAlthousePhD]

Update: our effort to compile crowdsourced list of references on some "Common Statistical Myths" is now a wiki on DataMethods - please feel free to go there and add your own topics and/or references!

https://t.co/BGiktqaUoU

[Alison Presmanes Hill @apreshill]

TIL ⏩ if you knit an #rstats #rmarkdown to html, and use the DT package (interface to the DataTables JavaScript library), you can add buttons for readers to download the data as csv + excel files 🖱️🗄️

https://t.co/bjVRAo3wiT

(h/t to @abtran 🎩 https://t.co/Dqrdzf7p9B)

[Ionas Erb @badlytrainedtec]

Call to #codawork2019 participants and #CoDA community with bioinformatic applications: @gbgloor, @tpq__ and I are organizing a special issue of NARGAB https://t.co/2PGJTOtlAF on #CoDA applications to genomics. Deadline for article submissions late autumn 2019. More details soon.

[Jamie Morton @jamietmorton]

@CoDaWork2019 @IAMG_Math_Geo @socestadistica @la_UPC @ajterrassa Thank you for organizing this conference! It was great to see the awesome research happening

[CoDaWork2019 @CoDaWork2019]

Closing ceremony and awards #CoDaWork2019

Best Poster: N. Stefelová
Best young contribution: C. Gozzi
Best Contribution: R. Tolosana-Delgado

See you un two years!

Thanks to all the #participants and #sponsors

#sort @IAMG_Math_Geo #statmod @socestadistica @la_UPC @ajterrassa

[Jamie Morton @jamietmorton]

I. Galvan presents on using principal balances to undercover GWAS / metabolite associations. #CoDaWork2019 @CoDaWork2019

[CoDaWork2019 @CoDaWork2019]

And the two last #bio talks:
Tom Lillhonga, #Compositional #Data Analysis of Finnish Birch Sap; and,
Iván Galván, #Principal #balances for #metabolite genome-wide association analysis in the @GCATbiobank cohort
#CoDaWork2019

[CoDaWork2019 @CoDaWork2019]

Last #CoDaWork2019 session. A #bio session:
Ionas Erb (@badlytrainedtec), #Partial #Correlations in #Compositional Data Analysis;
Dennis E. te Beest, Possible pitfall of using #logratio analysis on #metagenomics data with many #zeroes;

[Jamie Morton @jamietmorton]

Low abundance taxa are major drivers in PCA - maybe driven by the choice of pseudocount??

[Jamie Morton @jamietmorton]

D. E. to Beest presents on issues with performing compositional methods on microbiome data of pseudocounts are used for imputation @CoDaWork2019 #CoDaWork2019

[Jamie Morton @jamietmorton]

@badlytrainedtec presenting on partial correlations. It has been shown that compositional techniques out perform all other metrics for RNAseq network #CoDaWork2019 @CoDaWork2019

[Jamie Morton @jamietmorton]

An example of such a biplot is given

[Jamie Morton @jamietmorton]

The resulting biplots have nice interpretatable properties.

[Jamie Morton @jamietmorton]

This compositional CCA falls under the class of generalized CCA originally developed by ter Braak. There are challenges with compositional data due to the singularity of the covariance matrix