Quant visualization-heat map

After listening to nividia's visualization computing technology recently, I feel quite deeply. If transactions or data can be displayed graphically, the most direct feeling can be given. The number of rows in the financial market is huge, and there are more and more types of transactions in the financial market (number of shares, number of funds, number of bonds, derivatives, etc ), if this data is displayed in a more direct way before the eyes of investment decision makers, it can effectively help them understand the overall market situation and make investment decisions more quickly and correctly.

Below is a stock market profit situation made by myself using Matlab, which can be more significant and can be changed according to time ......

 

 

Http://finviz.com/map3d.ashx

Heat mapfrom Wikipedia, the free encyclopediajump to: navigation, search

A heat map is a graphical representation of data where the values taken by a variable in a two-dimen1_map are represented as colors. A very similar presentation form is a tree map. the term is also used to mean its thematic application as a choropleth map.

Heat maps originated in 2D displays of the values in a data matrix. larger values were represented by small dark gray or black squares (pixels) and smaller values by lighter squares. sneath (1957) 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 Gutman 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 (released at) to produce a cluster heatmap as a high-resolution color graphic. the Eisen et al. display shown in the figure is a replication of the earlier tables at design.

There are several different kinds of heat map.

• Web heat maps have been used for displaying areas of a Web page most frequently scanned by visitors. These have been inreceivated in Web analysis tools such as Google Analytics.

Heat map generated from DNA microarray data reflecting gene expression values in several conditions

• Biology heat maps are typically used in molecular biology to represent the level of expression of parameter genes within ss a number of comparable samples (e.g. cells in different states, samples from different patients) as they are obtained from DNA microarrays.

• The tree map is a 2D hierarchical partitioning of data that exactly ally resembles a heat map. They have been most famously used inMap of the marketApplet featured on smartmoney's website.

• A mosaic plot is a tiled heat map for representing a two-way or higher-way table of data. as with treemaps, the rectangular regions in a mosaic plot are hierarchically organized. the means that the regions are rectangles instead of squares. friendly (1994) surveys the history and usage of this graph