Description Usage Format See Also

The object "edf0s" is a *21* by *7* matrix. Each row is an edf0 vector of *7* elements corresponding to the *7* shapes in this package. Such a vector will be used in the main routine "shape" to select the best shape for a scatterplot of Landsat signals. Each edf0 vector is simulated through a subroutine called "getedf0", using a total of *1000* simulations with the random seed being set to *123*. Each row is an edf0 vector for an equally spaced *\bold{x}* vector of *n* elements (e.g., years). From the first row to the last row, the edf0 vector is for a predictor vector *\bold{x}* of length *n* which is an integer ranging from *20* to *40*. The matrix is built for the convenience of users when they call the routine "shape".

If the *\bold{x}* vector is equally spaced and its number of elements *n* is between *20* and *40*, then a corresponding edf0 vector will be extracted directly from this matrix and no simulation will be done, which saves a lot of time; otherwise, the subroutine "getedf0" will be called inside the routine "shape" to get an edf0 vector for *\bold{x}*. The timing depends on the number of elements in *\bold{x}* and the shape options allowed by the user. For example, when *\bold{x}* is an equally spaced vector of *26* elements, the timing is about *167* seconds if the user allows a double-jump shape and the timing is about *12* seconds if the user doesn't allow a double-jump shape. Also, when *\bold{x}* is not an equally spaced vector, no matter how many elements it has, "getedf0" should be called.

1 | ```
data("edf0s")
``` |

A 21 by 7 matrix.

`shape`

, `ShapeSelectForest-package`

ShapeSelectForest documentation built on May 29, 2017, 6:30 p.m.

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