Found the following math rendering problems:
rcorr.cens.Rd:14: Undefined control sequence: \var in \̲v̲a̲r̲{Dxy}=2(\var{c}…
rcspline.plot.Rd:44: Undefined control sequence: \var in 1 - \̲v̲a̲r̲{f}
rcspline.plot.Rd:45: Undefined control sequence: \var in \̲v̲a̲r̲{f} = \frac{10}…
rcspline.restate.Rd:32: Undefined control sequence: \var in \̲v̲a̲r̲{k}-1
rm.boot.Rd:122: Undefined control sequence: \var in \̲v̲a̲r̲{k} - 1
rm.boot.Rd:345: Undefined control sequence: \var in \̲v̲a̲r̲{m} > \var{n}
rm.boot.Rd:347: Undefined control sequence: \var in \̲v̲a̲r̲{m} < \var{n}
rm.boot.Rd:348-349: Undefined control sequence: \var in \̲v̲a̲r̲{n} -
    \var{m}
scat1d.Rd:19: Undefined control sequence: \var in \code{eps}*\̲v̲a̲r̲{w}
scat1d.Rd:22-23: Undefined control sequence: \var in …\code{jitfrac}*\̲v̲a̲r̲{w},
    \code{ji…
scat1d.Rd:178: Undefined control sequence: \var in \max{(.1, 125/\̲v̲a̲r̲{n})}
scat1d.Rd:230-231: Undefined control sequence: \var in …de{fill}*\min{(\̲v̲a̲r̲{u}-\var{d},\va…
scat1d.Rd:236-237: Undefined control sequence: \var in …de{fill}*\min{(\̲v̲a̲r̲{u}-\var{d},\va…
scat1d.Rd:239: Undefined control sequence: \var in \min{(\̲v̲a̲r̲{u}-\var{d},\va…
scat1d.Rd:283: Undefined control sequence: \var in \̲v̲a̲r̲{l}<\var{d}<\va…
transace.Rd:87: Undefined control sequence: \var in \̲v̲a̲r̲{ginverse}(\var…
transace.Rd:101-102: Undefined control sequence: \var in \̲v̲a̲r̲{ginverse}(\var…
transace.Rd:250: Undefined control sequence: \var in \̲v̲a̲r̲{ginverse}(\var…
transcan.Rd:272: Undefined control sequence: \var in \̲v̲a̲r̲{n} < 30
transcan.Rd:273: Undefined control sequence: \var in 30 <= \̲v̲a̲r̲{n} < 100
transcan.Rd:274: Undefined control sequence: \var in \̲v̲a̲r̲{n} \ge 100
transcan.Rd:770-771: Undefined control sequence: \var in …rac{1-\frac{(1-\̲v̲a̲r̲{R2})(\var{n}-1…
transcan.Rd:783: Undefined control sequence: \var in + \̲v̲a̲r̲{m}
transcan.Rd:788-789: Undefined control sequence: \var in 1-\frac{(1-\̲v̲a̲r̲{R2})(\var{n}-1…
transcan.Rd:797: Undefined control sequence: \var in \sqrt{\̲v̲a̲r̲{n}-1}