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en:mervis-analytics:00-start [2019/04/15 16:52] j.siroky [Carpet charts] |
en:mervis-analytics:00-start [2019/04/15 16:53] j.siroky [Carpet charts] |
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| Carpet chars do represent an efficient way for first visual data analysis. Beside classical carpet chart (or heatmap) we do use more sophisticated charts with aggregations. The basic principle is similar to pivot tables and pivot charts. User defines columns, rows and fold function. Each cell's value then represents aggregation of all values that do belong to the particular cell (e.g. average of of all values that were measured on Mondays between 2 and 3 am). | Carpet chars do represent an efficient way for first visual data analysis. Beside classical carpet chart (or heatmap) we do use more sophisticated charts with aggregations. The basic principle is similar to pivot tables and pivot charts. User defines columns, rows and fold function. Each cell's value then represents aggregation of all values that do belong to the particular cell (e.g. average of of all values that were measured on Mondays between 2 and 3 am). | ||
| - | Here are examples of useful carpet chars applications. | + | Below are examples of useful carpet chars applications. |
| ==== Electrical heating ==== | ==== Electrical heating ==== | ||
| Charts capture average electrical energy consumption during a week. In this case, electricity is used for heating as well, as can be seen from the first chart (horizontal axis: hour in day, vertical axis: month). There is clear start and end of heating season. | Charts capture average electrical energy consumption during a week. In this case, electricity is used for heating as well, as can be seen from the first chart (horizontal axis: hour in day, vertical axis: month). There is clear start and end of heating season. | ||