Tuesday, November 16, 2010

Conventional Methods of Data Visualization

HISTOGRAM: Vertical bar representation that depicts the distribution of the set of data with the help of tabular frequencies shown by the adjacent rectangles, erected over discrete intervals (bins), with an area equal to the frequency of the observations in the interval. The total area of histogram is equal to the number of data.
LINE GRAPH: Line graphs display graphical information by illustrating through the relationship between two changing quantities with the help of variables. Line graphs are used to compare whether the rate of change is increasing, decreasing, fluctuating or remains constant.
 PIE CHARTS: Pie chart is a circular chart that depicts proportion with the help of sectors and angles. Pie charts are the most ubiquitous and descriptive graphical representation that easily compares a part with the whole quantity.
  BAR GRAPHS: A bar chart is a chart with retangular bars with length propotional to the values they represent.Three different types of bar graphs are:
1.       Vertical Bar Graphs:
               2.       Stacked Bar Graphs:
3.       Grouped Bar Graphs:

 AREA GRAPHAn area chart or area graph displays graphically quantitive data. It is based on the line chart.The area between axis and line are commonly emphasized with colors, textures and hatchings. 




WATERFALL GRAPH:  Waterfall Graph is a form of data visualization which helps in determining the cumulative effect of sequentially introduced positive or negative values.  The waterfall chart is also known as a Flying Bricks Chart or Mario Chart due to the apparent suspension of columns (brick) in mid-air.


CANDLESTICK CHARTS: A candlestick chart is a style of bar chart used primarily to describe price movements of a security, derivative or currency over time. It is a combination of a line-chart and a bar-chart, in that each bar represents the range of price movement over a given time interval. It is most often used in technical analysis of equity and currency price patterns. They appear superficially similar to error bars but are unrelated.
CONTROL CHARTS: Control charts, also known as Shewhart charts or process-behaviour charts, in statistical process are tools used to determine whether or not a manufacturing or business process is in a state of statistical control.
TREE DIAGRAM: The term tree diagram refers to a specific type of diagram that has a unique Network topology. Tree diagram is used when a process is to be analyzed in detail, to develop actions to carry out a particular plan etc.

These were the various types of conventional methods used. Many of them are still used but now more advanced and prudent techniques of data visualization has been introduced and used.


No comments:

Post a Comment