Example of simple vertical bar chart based on D3.js library. This simple bar chart is constructed from a TSV file storing the demo data. The chart employs conventional margins and a number of D3 features: d3.tsv - load and parse data; d3.format - format percentages; d3.scale.ordinal - x-position encoding; d3.scale.linear - y-position encoding; d3.max - compute domains; d3.svg.axis - display axes.

Example of simple horizontal bar chart based on D3.js library. This simple bar chart is constructed from a TSV file storing the demo data. The chart employs conventional margins and a number of D3 features: d3.tsv - load and parse data; d3.format - format percentages; d3.scale.ordinal - x-position encoding; d3.scale.linear - y-position encoding; d3.max - compute domains; d3.svg.axis - display axes.

Example of bar chart with implemented data tooltip. Tooltip functionality is based on D3.tip addition to the D3.js library. For initialization create and return a configurable function for a tooltip. The tip must be called on the context of the target visualization. Tooltips support: styling via CSS, offsets and directions. Direction can be n, s, e, w, nw, ne, sw or se.

This grouped bar chart is constructed from a CSV file storing the demo data. The chart employs conventional margins and a number of D3 features: d3.csv - load and parse data; d3.scale.ordinal - x-position encoding and color encoding; d3.scale.linear - y-position encoding; d3.format - SI prefix formatting (e.g., “10M” for 10,000,000); d3.max - compute domains; d3.keys - compute column names; d3.svg.axis - display axes.

This stacked bar chart is constructed from a CSV file storing the demo data. The chart employs conventional margins and a number of D3 features: d3.csv - load and parse data; d3.scale.ordinal - x-position encoding and color encoding; d3.scale.linear - y-position encoding; d3.format - SI prefix formatting (e.g., “10M” for 10,000,000); d3.max - compute domains; d3.keys - compute column names; d3.svg.axis - display axes.

Example of normalized stacked bar chart. This variation of a bar chart shows percentages rather than absolute numbers and fills the whole chart area. D3.js library allows us to add transitions between different types of charts. The most common transition is from stacked to grouped chart. Also this type of normalized bar charts can have additional labels for better readability.