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Above all else, show the data

This requires bespoke design

Rather than a one-size-fits all approach

We used to have this...

Background

Why now

Firstly: what is the data saying?

Then: how can this be shown...

Then a colleague discovered this

aim: to improve consistency across

geographically distributed service

data to ink ratio:

Data ink

(markers, labels, comments, notes)

Key principles

we realised our guidelines

were not adhering to principles

of good statistical graphics

data ink

data ink + non-data ink

Non-data ink

(ticks, axes, gridlines, frames)

chart junk

...it took some enforced working

from home for me to read it...

in the shortest time

Although admittedly, Tufte sets the bar fairly high:

with the least ink

in the smallest space

Data density:

number of data points

area of graphic

Pragmatic approach - move

towards a new style rather than

try to change everything now.

Horses for courses - look at the

data and choose the best method

of presentation.

Improve:

- data to ink ratio (more data ink, less non-data ink)

- data density

Above all else, show the data

AIM:

to understand key principles of data presentation

and how to apply them to public health work

limited analytical resource-

these things take time

Constraints

sometimes the old charts still work well-

if it ain't broke, don't fix it

A key message is that with some thought,

charts and tables can often be improved

data density?

Examples

data to ink ratio? remove chart junk

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