Makes graphviz paths
xmu_dot_make_paths(mxMat, stringIn, heads = NULL, fixed = TRUE,
  comment = "More paths", showResiduals = TRUE, pathLabels = "labels",
  digits = 2)An mxMatrix
Input string
1 or 2 arrows (default NULL - you must set this)
Whether show fixed values or not (defaults to TRUE)
A comment to include
Whether to show residuals
labels
how many digits to report
- string
Other xmu internal not for end user: umxModel,
  xmuHasSquareBrackets,
  xmuLabel_MATRIX_Model,
  xmuLabel_Matrix,
  xmuLabel_RAM_Model, xmuMI,
  xmuMakeDeviationThresholdsMatrices,
  xmuMakeOneHeadedPathsFromPathList,
  xmuMakeTwoHeadedPathsFromPathList,
  xmuMaxLevels, xmuMinLevels,
  xmuPropagateLabels,
  xmu_check_levels_identical,
  xmu_dot_make_residuals,
  xmu_start_value_list