what is multidimensional data?
| food |
protein |
calcium |
sodium |
potassium |
| fish broth |
2 |
0.03 |
0.318 |
0.086 |
| blood sausage |
14.6 |
0.006 |
0.68 |
0.038 |
| puffed millet |
13 |
0.008 |
0.005 |
0.004 |
| medjool dates |
1.81 |
0.064 |
0.001 |
0.696 |
what is data visualization?
imposing space/time on data
for example
cartesian coordinate system
hans rosling's bubble chart
fertility rate
life expectancy
population
region
year
fertility rate → y axis
life expectancy → x axis
population → radius
region → color
year → animation
problems for data exploration
hit a limit at 5-6 dimensions
more dimensions more problems
how can we work with dozens of dimensions?
and another thing!
dimension encodings are qualitatively different
position, color, radius
how can we give equal weight to every dimension?
data table
data table
can't fit everything onto one screen
data table
weak visual clues
data table
ad hoc computation and transformation
what is exploring?
looking for patterns
seeking structure
applying theory
having fun
| | | | | | |
parallel coordinates
| | | | | | |
An interactive, multidimensional geometry in
2-d space
