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recipes.tidymodels.org | ||
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dplyr.tidyverse.org
Most data operations are done on groups defined by variables. group_by() takes an existing tbl and converts it into a grouped tbl where operations are performed "by group". ungroup() removes grouping. |
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r-spatial.github.io
The nb2listw function supplements a neighbours list with spatial weights for the chosen coding scheme. The can.be.simmed helper function checks whether a spatial weights object is similar to symmetric and can be so transformed to yield real eigenvalues or for Cholesky decomposition. The helper function listw2U() constructs a weights list object corresponding to the sparse matrix \(\frac{1}{2} ( \mathbf{W} + \mathbf{W}'\). |
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yardstick.tidymodels.org
Compute the logarithmic loss of a classification model. |
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www.alm.website
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