| Name : R-cops
| |
| Version : 1.3.1
| Vendor : obs://build_opensuse_org/devel:languages:R
|
| Release : lp153.8.5
| Date : 2024-06-14 12:16:18
|
| Group : Development/Libraries/Other
| Source RPM : R-cops-1.3.1-lp153.8.5.src.rpm
|
| Size : 0.84 MB
| |
| Packager : (none)
| |
| Summary : Cluster Optimized Proximity Scaling
|
Description :
Multidimensional scaling (MDS) methods that aim at pronouncing the
clustered appearance of the configuration (Rusch, Mair & Hornik, 2021,
< doi:10.1080/10618600.2020.1869027>). They achieve this by transforming
proximities/distances with power functions and augment the fitting
criterion with a clusteredness index, the OPTICS Cordillera (Rusch,
Hornik & Mair, 2018, < doi:10.1080/10618600.2017.1349664>). There are
two variants: One for finding the configuration directly (COPS-C) for
ratio, power, interval and non-metric MDS (Borg & Groenen, 2005,
ISBN:978-0-387-28981-6), and one for using the augmented fitting
criterion to find optimal parameters (P-COPS). The package contains
various functions, wrappers, methods and classes for fitting, plotting
and displaying different MDS models in a COPS framework like ratio,
interval and non-metric MDS for COPS-C and P-COPS with Torgerson
scaling (Torgerson, 1958, ISBN:978-0471879459), scaling by majorizing a
complex function (SMACOF; de Leeuw, 1977,
< https://escholarship.org/uc/item/4ps3b5mj>), Sammon mapping (Sammon,
1969, < doi:10.1109/T-C.1969.222678>), elastic scaling (McGee, 1966,
< doi:10.1111/j.2044-8317.1966.tb00367.x>), s-stress (Takane, Young & de
Leeuw, 1977, < doi:10.1007/BF02293745>), r-stress (de Leeuw, Groenen &
Mair, 2016, < https://rpubs.com/deleeuw/142619>), power stress (Buja &
Swayne, 2002 < doi:10.1007/s00357-001-0031-0>), restricted power stress,
approximate power stress, power elastic scaling, power Sammon mapping
(for all Rusch, Mair & Hornik, 2021,
< doi:10.1080/10618600.2020.1869027>). All of these models can also
solely be fit as MDS with power transformations. The package further
contains a function for pattern search optimization, the ``Adaptive
Luus-Jaakola Algorithm\'\' (Rusch, Mair & Hornik,
2021,< doi:10.1080/10618600.2020.1869027>).
|
RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Leap_15.3/x86_64 |
