Bar charts
Bar charts are very used and the easiest to understand.
▸ Time-based data
Bar charts can be used for other comparisons that are not temporary, but often another graph type is more appropriate.
▸ Compare time-based data
Compares two metrics trough time, if the number of months / years is not too large. Line graphs can represent more information clearly.
▸ Positives and negatives
Bar charts can have positive and negative values in both axes. In the example below we compare two sets of data.
▸ Ranking
Ránking mundial del aumento de consumo de carbón
2017 / 2016
Horizontal bar charts are more appropriate for comparing data when there is no time factor or when the order of the dimension is important.
▸ Acumulated data trough time
This charts show how the sum of of different metrics evolves trough time.
▸ Percentages trough time
When we want to show variation of one or more percentages over time.