Gets one of the internally defined forms matrices. A form matrix is defined for the classic 10-form output (default; Jasiewicz & Stepinski, 2013) as well as three simplified classes: 4-form, 5-form, and 6-form (Masetti et al., 2018)
Usage
forms_matrix_get(num_forms = 10, levels = get_forms_grass_enum())Arguments
- num_forms
Integer. The number of forms to classify, one of
4,5,6, or10(default).- levels
Named integer with values between 0 and 10 corresponding to form class labels. Default:
get_forms_grass_enum()
Details
For creating custom classification systems see the forms_matrix() constructor.
References
Stepinski, T., Jasiewicz, J., 2011, Geomorphons - a new approach to classification of landform, in : Eds: Hengl, T., Evans, I.S., Wilson, J.P., and Gould, M., Proceedings of Geomorphometry 2011, Redlands, 109-112. Available online: https://www.geomorphometry.org/uploads/pdf/pdf2011/StepinskiJasiewicz2011geomorphometry.pdf
Jasiewicz, J., Stepinski, T., 2013, Geomorphons - a pattern recognition approach to classification and mapping of landforms, Geomorphology, vol. 182, 147-156. (doi:10.1016/j.geomorph.2012.11.005 )
Masetti, G., Mayer, L. A., & Ward, L. G. 2018, A Bathymetry- and Reflectivity-Based Approach for Seafloor Segmentation. Geosciences, 8(1), 14. (doi:10.3390/geosciences8010014 )
Examples
forms_matrix_get()
#> <forms_matrix> object
#>
#> pos=0 pos=1 pos=2 pos=3 pos=4 pos=5 pos=6 pos=7 pos=8
#> neg=0 G_FL G_FL G_FL G_FS G_FS G_VL G_VL G_VL G_PT
#> neg=1 G_FL G_FL G_FS G_FS G_FS G_VL G_VL G_VL G_NONE
#> neg=2 G_FL G_SH G_SL G_SL G_HL G_HL G_VL G_NONE G_NONE
#> neg=3 G_SH G_SH G_SL G_SL G_SL G_HL G_NONE G_NONE G_NONE
#> neg=4 G_SH G_SH G_SP G_SL G_SL G_NONE G_NONE G_NONE G_NONE
#> neg=5 G_RI G_RI G_SP G_SP G_NONE G_NONE G_NONE G_NONE G_NONE
#> neg=6 G_RI G_RI G_RI G_NONE G_NONE G_NONE G_NONE G_NONE G_NONE
#> neg=7 G_RI G_RI G_NONE G_NONE G_NONE G_NONE G_NONE G_NONE G_NONE
#> neg=8 G_PK G_NONE G_NONE G_NONE G_NONE G_NONE G_NONE G_NONE G_NONE