Friday, July 19, 2013

Similarity Matrix





This is an example of a similarity matrix. A similarity matrix shows similarities between two variables. In this example we show the similarities in how players rated other baseball players. The similarities are  color coordinated, with similarities the more similar they are the greener the data box. The less similar data points grow more and more red. 

Stem and Leaf Plot



This is an example of a stem and leaf plot. Stem and leaf plots are a form of organizing and compacting data sets. The stem is on the left and where the tens digit goes, and on the leaf side you put the ones digit of the number. The ones are organized in ascending order. This particular plot depicts the number of infant deaths per 1,000 live births in Western African countries. The 14 resembles the 140 range, having 144, 147 and 148 deaths in certain countries. 




Box Plot




This is an example of a box plot. The box plot is a graphical way to show many features of a set of data. The plot shows the Minimum and Maximum. Apart from the min and max the box plot shows the IQR, or Interquartile Range. The IQR consists of Q1, Q2, and Q3. Q2 is the median of the set of data, and Q1 is 25% below Q2 and Q3 is 25% above Q2. This specific box plot shows the energy output of four different machines. 

Histogram




This is an example of a Histogram. A histogram is a bar graph where the bars do not have spaces between then and all the bars are of equal width. This specific histogram depicts the heights of twenty five different students. 

Parallel Coordinate Graph





This is an example of a parallel coordinate graph. These graphs show data from multiple sets of numbers side by side. Each vertical line is a different object being measured. In this graph the relationships between MPG, cylinders, Horsepower, weight and the year of a vehicle. You can see that newer vehicles are using more cylinders and creating more horsepower than in the past. 

Triangular Plot



This is an example of a Triangular Plot. Triangular plots show the relationship and ratios between 3 variables with a chart in the shape of an equilateral triangle. These plots are usually used to show sediment breakdowns or as is the case with this plot, the ratio of three different chemical compounds. 

Windrose




This chart is a Windrose. A Windrose is a way to convey windspeed and direction in a given area. This chart shows the wind speed by color coordinating different speeds. The direction of the wind is given by the traditional cardinal directions. This Windrose shows the windspeed and direction in Maine.