thetamatrix {Rvelslant} | R Documentation |
Calculates the matrix that contains the angles of incidence for the the raypath for each travel time measurement. The matrix has ncols = number of layers in the velocity model, and nrows = number of travel time measurements.
thetamatrix(z, v, bot, hoffset)
z |
array (length = k) of depth to each travel time measurement. |
v |
array (length = n) of velocities that correspond to each layer defined by bot. |
bot |
array (length = n) of the depth to bottom of each layer such that the bottom of the last layer is the location the source (or receiver). |
hoffset |
k by n numeric value of horizontal offset from borehole at surface. |
k by n matrix of angles of incidence.
Eric M. Thompson <eric.thompson@tufts.edu>
# Used internally by snellregress()