Calculation capabilities:

• Dip rotation (Residual Dip Analysis)  See tutorials on the home page for an explanation.
• Fold axis analysis to find the azimuth and plunge of fold axes and also map strike of fault cuts (not the strike of the fault plane). 
• Calculates true vertical depth (TVD), true vertical thickness (TVT), true stratigraphic thickness (TST) and plots depth-type logs in the calculated depth type
• Dip averaging options:
• Averaging types:
  • 3-D vector mean -- better for bedding dips, it is the most commonly used averaging method
  • 3-D vector median -- better for bedding dips, not as sensitive to "wild" values as vector mean or major eigenvector methods
  • Major eigenvector -- better for fractures or other non-oriented (bidirectional) dips
• Average by depth interval or number of dips to create either a "decimated" log with new dips or a smoothed log using a running average
• Borehole deviation
  • Types
    • Minimum curvature
    • Radius of curvature
    • Tangential
    • Angle average
  • When interpolating points in space between deviations, RDA uses minimum curvature interpolation, not linear as in most programs