Question
The following data in Table 1 are from a survey on some university students: ID Name Age Gender Residential status Income Dept. Behavior 1 X1
The following data in Table 1 are from a survey on some university students:
ID | Name | Age | Gender | Residential status | Income | Dept. | Behavior |
---|---|---|---|---|---|---|---|
1 | X1 | 20 | F | Yes | 3400 | CSE | Moderate |
2 | X2 | 23 | M | No | 5800 | Poor | |
3 | X3 | 21 | M | Yes | 6000 | CSE | Good |
4 | X1 | 25 | M | No | 2500 | CSE | Very Good |
Here, the attributes types are- 1) Age and Income are Numeric, 2) Name is Nominal, 3) Dept. is Nominal with 6 possible options, 4) Gender is asymmetric binary with "M" having higher weight, 5) Residential status is symmetric binary, 6) Behavior is ordinal with 5 options. (Very poor < Poor < Moderate < Good < Very Good)
a) Differentiate Data Matrix from Dissimilarity Matrix. Show the data matrix for the data of Table 1. (10 Marks) b) Find the dissimilarity matrix for all the attributes of the data in Table 1. (20 Marks)
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