Generate planar and spherical triangle meshes,
    compute finite element calculations for 1-, 2-, and 3-dimensional flat
    and curved manifolds with associated basis function spaces, methods for
    lines and polygons, and transparent handling of coordinate reference
    systems and coordinate transformation, including 'sf' and 'sp' geometries.
    The core 'fmesher' library code was originally part of the 'INLA' package,
    and implements parts of "Triangulations and Applications" by
    Hjelle and Daehlen (2006) <doi:10.1007/3-540-33261-8>.

Provides a suite of functions to test for Functional
    Measurement Invariance (FMI) between two groups. Implements
    hierarchical permutation tests for configural, metric, and scalar
    invariance, adapting concepts from Multi-Group Confirmatory
    Factor Analysis (MGCFA) to functional data.
    Methods are based on concepts from: 
    Meredith, W. (1993) <doi:10.1007/BF02294825>,5
    Yao, F., Müller, H. G., & Wang, J. L. (2005) <doi:10.1198/016214504000001745>,
    and Lee, K. Y., & Li, L. (2022) <doi:10.1111/rssb.12471>.

Provides a collection of functions to fit and explore single, multi-component and restricted Frequency Modulated Moebius (FMM) models. 'FMM' is a nonlinear parametric regression model capable of fitting non-sinusoidal shapes in rhythmic patterns. Details about the mathematical formulation of 'FMM' models can be found in Rueda et al. (2019) <doi:10.1038/s41598-019-54569-1>.

Estimates Filtered Monotonic Polynomial IRT Models as described by Liang and Browne (2015) <DOI:10.3102/1076998614556816>.

Provides a flexible interface to the 'Financial Modeling Prep' API 
    <https://site.financialmodelingprep.com/developer/docs>. The package 
    supports all available endpoints and parameters, enabling R users 
    to interact with a wide range of financial data.

Use R to access to the 'FMP Cloud' API <https://fmpcloud.io/> and 
    'Financial Modeling Prep' API <https://financialmodelingprep.com/developer/docs/>.
    Data available includes stock prices, market indexes, company fundamentals,
    13F holdings data, and much more. A valid API token must be set to enable
    functions.