| 
421
 | 
     1  | 
  | 
388
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
     2  | 
val urban_prices = List(List(Some(312.204773), Some(26.782711)), 
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
     3  | 
                        List(Some(301.0466), Some(41.244694)), 
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
     4  | 
                        List(Some(331.462585), Some(51.464207)))
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
     5  | 
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
     6  | 
  | 
| 
421
 | 
     7  | 
assert(M1.get_deltas(urban_prices) == List(List(Some(-0.03573991804411003), Some(0.539974575389325)), 
  | 
388
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
     8  | 
                                          List(Some(0.10103414222249969), Some(0.24777764141006836))))
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
     9  | 
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
    10  | 
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
    11  | 
//get_prices(List("BIDU"), 2004 to 2008)
 | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
    12  | 
val urban_prices2 = List(List(None), List(None), 
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
    13  | 
                         List(Some(6.35)), List(Some(12.241)), 
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
    14  | 
                         List(Some(38.188)))
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
    15  | 
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
    16  | 
  | 
| 
421
 | 
    17  | 
assert(M1.get_deltas(urban_prices2) == List(List(None), List(None), 
  | 
388
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
    18  | 
                                        List(Some(0.9277165354330709)), 
  | 
Christian Urban <christian.urban@kcl.ac.uk> 
parents:  
diff
changeset
 
 | 
    19  | 
                                        List(Some(2.119679764725104))))
  |