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All functions

df_ccsig()
Smooth the signal and remove the hooks
df_rmtrend_x3p()
Removing missing values and a quadratic trend
inside_polygon()
Identify the inner polygon of a point set
vec_align_sigs_list()
Align two signal vectors
x3p_MLE_angle_vec()
Calculate rotation angle using maximum likelihood estimation (MLE)
x3p_boundary_points()
Extract boundary points from a 3D topographic scan
x3p_image_autosize()
Display an x3p object as an auto-sized image
x3p_impute()
Impute missing values
x3p_insidepoly_df()
Generate summary data frame for inner polygon
x3p_raw_sig_df()
Extract signal from raw x3p object
x3p_shift()
Minimize MSE by shifting striations
x3p_shift_sig_df()
Extract signal from transformed x3p object by minimizing MSE
x3p_subsamples
Subsampled dataset of wire cuts
x3p_surface_polygon()
Add a polygon mask of the scan shape
x3p_vertical()
Rotate imputed x3p object to vertical direction