Sample a proportion of coordinates (among points)

A simple wrapper around coo_sample

Usage

coo_sample_prop(coo, prop = 1)

Arguments

coo

either a matrix of (x; y) coordinates or an Out or an Opn object.

prop

numeric, the proportion of points to sample

Value

a matrix of (x; y) coordinates, or an Out or an Opn object.

Details

As for coo_sample if an $ldk component is defined, it is changed accordingly by multiplying the ids by n over the number of coordinates.

See also

Other sampling functions: coo_extract(), coo_interpolate(), coo_samplerr(), coo_sample()

Other coo_ utilities: coo_aligncalliper(), coo_alignminradius(), coo_alignxax(), coo_align(), coo_baseline(), coo_bookstein(), coo_boundingbox(), coo_calliper(), coo_centdist(), coo_center(), coo_centpos(), coo_close(), coo_down(), coo_dxy(), coo_extract(), coo_flipx(), coo_force2close(), coo_interpolate(), coo_is_closed(), coo_jitter(), coo_left(), coo_likely_clockwise(), coo_nb(), coo_perim(), coo_range(), coo_rev(), coo_right(), coo_rotatecenter(), coo_rotate(), coo_samplerr(), coo_sample(), coo_scale(), coo_shearx(), coo_slice(), coo_slidedirection(), coo_slidegap(), coo_slide(), coo_smoothcurve(), coo_smooth(), coo_template(), coo_trans(), coo_trimbottom(), coo_trimtop(), coo_trim(), coo_untiltx(), coo_up(), is_equallyspacedradii()

Examples

# single shape
bot[1] %>% coo_nb()
#> [1] 138
bot[1] %>% coo_sample_prop(0.5) %>% coo_nb()
#> [1] 69