Predicting Numbers

Question

Hi All,

I am looking for any operator which can predict numbers. Specialy real numbers. Input is like

Name | Factor1 | Factor2 |  Factor3  |  Factor4   |  Rate
===========================================
A        |   1         |   7         |        6      |     3           | 100
B        |   5         |   3         |        7      |     9           | 150
C        |   3         |   9         |       11     |     2           |  75

I want an operator which could predict Rate if we have values of factors.

Please help.

haddock · Answer

Hi, In general when people do not spell out what they are doing it is difficult to tell if they are making a mistake, but not in this case... If I make this into a csv.... ID, F1, F2, F3, F4, L A , 1 , 7 , 6 , 3 , 100 B , 5 , 3 , 7 , 9 , 150 C , 3 , 9 , 11 , 2 , 75 and set things up like this.... Then I get the answers you are expecting :o

dubeyankur · Answer

Thanks Sebastian,

I tried using linear regression but I am not getting expected result. What I am getting is some sort of mean/ average

Name | Factor1 | Factor2 |  Factor3  |  Factor4   |  Rate  | Predicted*
======================================================
A        |   1         |   7         |        6      |     3           | 100    |  129.23
B        |   5         |   3         |        7      |     9           | 150    |   129.23  
C        |   3         |   9         |       11     |     2           |  75     |   129.23

In the output I am getting only one value. I am exceting 100/150/75. Am I doing something wrong.

land · Answer

Hi,
we call these type of learning algorithms "regression" and there is a really great number of learners able to do regression. Take a look on the operator info on the learner capabilities. Numerical_label indicates that the learner can predict numbers.
One example for a regression learner is the linear regression.

Greetings,
  Sebastian