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Chicago / predicting-e-coli-concentrations

This repository is part of the working draft for an upcoming an academic paper describing the methods and results of the City of Chicago Clear Water project.
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Clarify R^2 on correlation with breakwaters #60

Closed tomschenkjr closed 6 years ago

tomschenkjr commented 6 years ago

Line 137: Is the R-sq the best measure to show a positive correlation? All R-sq are positive after squaring. Maybe just show correlation coefficient of approx.. r = 0.74 assuming the correlation was from a linear model calculation.

nicklucius commented 6 years ago

We will change to this recommendation.

tomschenkjr commented 6 years ago

@nicklucius - in addition, I came across a Chicago-specific citation on the role of breakwaters in forming E. coli. Makes sense to include it in this paragraph that you're editing. I've uploaded the citation, "whitman_characterization_2001", in the bibliography/zotero-references.bib file on the issue60 branch. So you'll just need to insert the citation text in the RMarkdown for it to generate.

The quote--even though we don't need to include it--is:

The north and south breakwaters also act as protection against wind by reducing fetch. The increased calmness may translate itself into reduced exportation and dilution f internal or external loadings of bacteria and anthropogenic chemicals that were found in the study. On the other hand, the walls increase the total energy in the area during certain flow conditions because wave energy is reflected rather than absorbed. This energy may act to keep material suspended long enough for some of it to be exported from the beach area. The shallowness of the beach compounds the problem by further decreasing circulation and by allowing less volume of water for dilution of bacteria. Bacteria tend to be associated with detritus and fine sediments (i.e. silts and clays). In deeper water this bacteria-laden material eventually settles to the bottom, and the bacteria eventually dies. This may be why offshore water, and even 90-cm water or harbor water, was lower in E coli content than 45-cm water.

tomschenkjr commented 6 years ago

@nicklucius - nevermind, I think this reference fits within #39 and #59, so will include that in my task.