Complete the following steps to specify the columns of data that you want to analyze.
- In Responses, enter one or more columns of numeric data that you want to explain or predict. The response is also called the Y variable.
- In Continuous
predictors, enter the columns of numeric data that may explain or predict changes in the response. The predictors are also called X variables.
- In Categorical
predictors, enter the categorical classifications or group assignments, such as a type of raw materials, that may explain or predict changes in the response. The predictors are also called X variables.
In this worksheet, Strength is the response and contains the strength measurements of a sample of synthetic fibers. Temperature is a continuous predictor and Machine is a categorical predictor. The predictors may explain differences in fiber strength. The first row of the worksheet shows that the first sample of fiber has a strength measurement of 40, has a temperature of 136, and was produced on Machine A.
| C1 |
C2 |
C3 |
| Strength |
Temperature |
Machine |
| 40 |
136 |
A |
| 53 |
142 |
A |
| 32 |
119 |
B |
| 36 |
127 |
A |
| 42 |
151 |
B |
| 45 |
121 |
B |
