Showing 6 of total 6 results (show query)
kaskr
RTMB:'R' Bindings for 'TMB'
Native 'R' interface to 'TMB' (Template Model Builder) so models can be written entirely in 'R' rather than 'C++'. Automatic differentiation, to any order, is available for a rich subset of 'R' features, including linear algebra for dense and sparse matrices, complex arithmetic, Fast Fourier Transform, probability distributions and special functions. 'RTMB' provides easy access to model fitting and validation following the principles of Kristensen, K., Nielsen, A., Berg, C. W., Skaug, H., & Bell, B. M. (2016) <DOI:10.18637/jss.v070.i05> and Thygesen, U.H., Albertsen, C.M., Berg, C.W. et al. (2017) <DOI:10.1007/s10651-017-0372-4>.
Maintained by Kasper Kristensen. Last updated 2 months ago.
54 stars 10.49 score 394 scripts 9 dependents
antoinelucas64
gmp:Multiple Precision Arithmetic
Multiple Precision Arithmetic (big integers and rationals, prime number tests, matrix computation), "arithmetic without limitations" using the C library GMP (GNU Multiple Precision Arithmetic).
Maintained by Antoine Lucas. Last updated 7 months ago.
7.69 score 530 scripts 317 dependents
robinhankin
onion:Octonions and Quaternions
Quaternions and Octonions are four- and eight- dimensional extensions of the complex numbers. They are normed division algebras over the real numbers and find applications in spatial rotations (quaternions), and string theory and relativity (octonions). The quaternions are noncommutative and the octonions nonassociative. See the package vignette for more details.
Maintained by Robin K. S. Hankin. Last updated 1 months ago.
6 stars 7.27 score 43 scripts 3 dependentskaskr
RTMBp:'R' Bindings for 'TMB'
Native 'R' interface to 'TMB' (Template Model Builder) so models can be written entirely in 'R' rather than 'C++'. Automatic differentiation, to any order, is available for a rich subset of 'R' features, including linear algebra for dense and sparse matrices, complex arithmetic, Fast Fourier Transform, probability distributions and special functions. 'RTMBp' provides easy access to model fitting and validation following the principles of Kristensen, K., Nielsen, A., Berg, C. W., Skaug, H., & Bell, B. M. (2016) <DOI:10.18637/jss.v070.i05> and Thygesen, U.H., Albertsen, C.M., Berg, C.W. et al. (2017) <DOI:10.1007/s10651-017-0372-4>.
Maintained by Kasper Kristensen. Last updated 2 months ago.
51 stars 6.44 score 1 scripts
chiefmurph
mondate:Keep track of dates in terms of months
Keep track of dates in terms of months. Model dates as at close of business. Perform date arithmetic in units of "months" and "years". Allow "infinite" dates to model "ultimate" time spans.
Maintained by Dan Murphy. Last updated 3 years ago.
2 stars 4.53 score 91 scripts
cran
salad:Simple Automatic Differentiation
Handles both vector and matrices, using a flexible S4 class for automatic differentiation. The method used is forward automatic differentiation. Many functions and methods have been defined, so that in most cases, functions written without automatic differentiation in mind can be used without change.
Maintained by Hervé Perdry. Last updated 3 months ago.
2.48 score