Definitions for heat map
heat map

WiktionaryRate this definition:0.0 / 0 votes

1. heat mapnoun

   A two-dimensional graphic representation of data in which different values are represented by different colours

WikipediaRate this definition:0.0 / 0 votes

1. Heat map

   A heat map (or heatmap) is a data visualization technique that shows magnitude of a phenomenon as color in two dimensions. The variation in color may be by hue or intensity, giving obvious visual cues to the reader about how the phenomenon is clustered or varies over space. There are two fundamentally different categories of heat maps: the cluster heat map and the spatial heat map. In a cluster heat map, magnitudes are laid out into a matrix of fixed cell size whose rows and columns are discrete phenomena and categories, and the sorting of rows and columns is intentional and somewhat arbitrary, with the goal of suggesting clusters or portraying them as discovered via statistical analysis. The size of the cell is arbitrary but large enough to be clearly visible. By contrast, the position of a magnitude in a spatial heat map is forced by the location of the magnitude in that space, and there is no notion of cells; the phenomenon is considered to vary continuously. "Heat map" is a relatively new term, but the practice of shading matrices has existed for over a century.

WikidataRate this definition:0.0 / 0 votes

1. Heat map

   A heat map is a graphical representation of data where the individual values contained in a matrix are represented as colors. Fractal maps and tree maps both often use a similar system of color-coding to represent the values taken by a variable in a hierarchy. The term is also used to mean its thematic application as a choropleth map. The term "Heatmap" was originally coined and trademarked by software designer Cormac Kinney in 1991, to describe a 2D display depicting real time financial market information. Heat maps originated in 2D displays of the values in a data matrix. Larger values were represented by small dark gray or black squares and smaller values by lighter squares. Sneath displayed the results of a cluster analysis by permuting the rows and the columns of a matrix to place similar values near each other according to the clustering. Jacques Bertin used a similar representation to display data that conformed to a Guttman scale. The idea for joining cluster trees to the rows and columns of the data matrix originated with Robert Ling in 1973. Ling used overstruck printer characters to represent different shades of gray, one character-width per pixel. Leland Wilkinson developed the first computer program in 1994 to produce cluster heat maps with high-resolution color graphics. The Eisen et al. display shown in the figure is a replication of the earlier SYSTAT design.

How to pronounce heat map?

1. Alex

   US English

   David

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   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

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   Karen

   Australian

   Hayley

   Australian

   Natasha

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   Indian

   Priya

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   Neerja

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   Zira

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   Oliver

   British

   Wendy

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   Fred

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   Tessa

   South African

How to say heat map in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of heat map in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of heat map in Pythagorean Numerology is: 1

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Heat_Map
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Heat_Map
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=heat map