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keywords: attribute
title: Genealogy depth
description: Returns the number of generations in the genealogy from a GLgen object.

keywords: attribute
title: Names (keys) of a BibEntry object
description: Functions to get and set the keys of an object of class BibEntry

keywords: attribute
title: data.frame for logit model
description: shape a data.frame in a suitable form for the use of the mlogit function.

keywords: attribute
title
description: The function checks if the input data are given in the correct form of an array of dimension nl x 3 x n containing n fuzzy numbers characterized by means of nl $\alpha$-levels each. The following conditions have to be fulfilled: (1) the number of columns of the array must be 3 (the first column will be the $\alpha$-levels, the second one their infimum values and the third one their supremum values), (2) all the fuzzy numbers must have the same column of $\alpha$-levels, (3) the minimum $\alpha$-level should be 0 y the maximum 1, (4) the $\alpha$-levels have to increase from 0 to 1, (5) the infimum values have to be non-decreasing, (6) the supremum values have to be non-creasing, (7) the infimum value has to be smaller or equal than the supremum value for each $\alpha$-level. This function is used internally in some of the other functions to do a preliminary checking if the input data are in the correct form.

keywords: attribute
title
description: The function checks if the input data are given in the correct form of a matrix of dimension n x 4 containing n trapezoidal fuzzy numbers characterized by their four values inf0,inf1,sup1,sup0 each. The following conditions have to be fulfilled: (1) the number of columns of the matrix must be 4 (the four values characterizing each trapezoidal fuzzy number), (2) the four values of each trapezoidal number have to be non-decreasing. This function is used internally in almost all the other functions to do a preliminary checking if the input data are in the correct form.

keywords: attribute
title: Wrapper functions for manipulation with non-raster objects
description: These wrappers return iniform properties or do consimilar manipulations for spatial objects of different types: simple features (package sf) and abstract class Spatial (package sp). Appropriate functionality (“engine”) of respective packages is used.

keywords: attribute
title: Get and set properties of raster image.
description: For package description see. ursa is a wrapper to initialize object of class ursaRaster, to get and to set properties for this object.

keywords: attribute
title: Extract and assign projection of raster images.
description: Functions manipulate with $proj4 item of the ursaGrid object, which is embedded in the ursaRaster object (obj$grid$proj4). Projection is specified in PROJ.4 notation.