Changes in version 0.1.3                        

Bug fixes

  - Resolved a C++ One Definition Rule (ODR) violation reported under
    link-time optimization (LTO): the file-local helper structs in
    fista.cpp and fista_cox.cpp now have internal linkage (anonymous
    namespaces).

Minor improvements

  - coef() now returns a one-column sparse matrix instead of a
    two-column data frame. Zero coefficients are printed as ., which
    keeps the display compact in high dimensions.

  - Added a summary() method for pic fits.

  - intercept = FALSE is now permitted for every family. Previously it
    raised an error for non-Cox families when standardize = TRUE. When
    intercept = FALSE, the data are assumed to be centered.

  - Standardized the input-validation error messages (consistent
    back-quoting of argument names and call. = FALSE).