A visualisation showing the intensity of a variable across a geographic area.
Related terms
- Hedonic pricing
A model that estimates value from the contribution of individual property attributes.
- Isochrone
A line on a map connecting points reachable within the same travel time.
- Location intelligence
The discipline of deriving business decisions from spatial data, combining GIS, demographics, and mobility; increasingly used to site retail and residential sc…
- Median vs mean
The median is the middle value and the mean is the arithmetic average; in skewed property markets the median resists distortion from a few ultra-prime sales, s…
- Outlier
A data point far from the rest, which may be an error or the most informative record.
- Point of interest (POI)
A mapped location such as a school, mall, or metro station used in location analysis.
- Spatial join
A GIS operation that links records by geographic location rather than a shared key, such as tagging each listing with its district or catchment; the backbone o…
- Standard deviation
A measure of how widely values spread around their mean; a high standard deviation in price per square metre flags a heterogeneous or thinly traded submarket.