cds505_test2

I. Partitioning and grouping are the same process.

II. Partitioning encodes association between items using spatial proximity.

III. Process of partitioning attribute typically a categorical variable that has only a limited number of unique values.

IV. Partitioning data down into item level is possible, when dealing with key attributes.

I. Parallel coordinates usually used for finding the range of individual attributes and selecting range of items.

II. Training time is one of the limitations in parallel coordinates.

III. Pie chart usually require smaller screen area than normalized stacked bar charts.

IV. The similarity between parallel layouts and radial layouts is both are one dimensional layout.

I. Hue axis is pure colours (not mixed with white or black).

II. Saturation axis is the amount of white mixed with that pure colour.

III. Lightness axis is the amount of black mixed with a colour.

IV. It always reflects how we perceive colours.

I. Regions (or items) are distributed along two perpendicular axes for parallel, rectilinear, and radial layouts design.

II. In rectilinear layouts, items are distributed from minimum value on one side to a maximum value on the other side.

III. Polar coordinates in radial layout, only one-dimension is measured as an angle since the angle channel is nonmonotonic.

IV. For time-series datasets, radial plots are effective showing cyclic patterns.

I. Hue axis is pure colours (not mixed with white or black).

II. Saturation axis is the amount of white mixed with that pure colour.

III. Lightness axis is the amount of black mixed with a colour.

IV. It always reflects how we perceive colours.

I. Occlusion can be a major readability problem with continuous scatterplots, thus by plotting aggregate value at each pixel is needed to solve the problem.

II. Boxplot idiom presents summary of statistics for the distribution of a qualitative attribute, using five derived values.

III. Many of the interesting uses of aggregation in visualisation involve dynamically changing sets.

IV. Geographically weighted interactive graphics provides sophisticated support for spatial aggregation using geographically weighted regression and geographically weighted summary statistics.