13 lines
413 B
Plaintext
13 lines
413 B
Plaintext
X=: x ^/ i.3 NB. form Design matrix
|
|
X=: (x^0) ,. (x^1) ,. (x^2) NB. equivalent of previous line
|
|
4{.X NB. show first 4 rows of X
|
|
1 1.47 2.1609
|
|
1 1.5 2.25
|
|
1 1.52 2.3104
|
|
1 1.55 2.4025
|
|
|
|
NB. Where y is a set of observations and X is the design matrix
|
|
NB. y %. X does matrix division and gives the regression coefficients
|
|
y %. X
|
|
128.813 _143.162 61.9603
|