The diabetes1 data frame has 442 rows and 1 columns.
These are the data used in the Efron et al "Least Angle Regression" paper.
The diabetes data frame has 442 rows and 3 matrices, containing
predictors, response, and interactions.
Format
diabetes1 is a data frame with 442 observations on the following 11 variables.
age
a numeric vector
sex
a numeric vector
bmi
a numeric vector
map
a numeric vector
tc
a numeric vector
ldl
a numeric vector
hdl
a numeric vector
tch
a numeric vector
ltg
a numeric vector
glu
a numeric vector
y
a numeric vector
In the sex variable, 1 indicates female and 2 male.
diabetes is a data frame containing the following objects:
x
a matrix with 10 columns–the first 10 columns from
diabetes1, standardized
y
a numeric vector
x2
a matrix with 64 columns–main effects and second-order interactions
Details
The x matrix is standardized to have unit L2 norm in each column
and zero mean. The matrix x2 consists of x plus
second-order powers and interactions, also standardized.