NEWS
ggerror 1.0.0 (2026-05-12)
- New
stat_error() summarises raw observation-level data into error
bounds. Accepts fun = "mean_se" (default), "mean_ci" (95% normal-
theory CI, no Hmisc dep), or a custom function following ggplot2's
fun.data contract. Also available via geom_error(stat = "error").
- New
sign_aware = TRUE routes signed per-row values (typically
residuals) into one-sided bars whose direction encodes the sign.
Enables one-layer lm() residual plots.
aes(error_neg = NA, error_pos = ...) is now the canonical idiom for
one-sided bars — the cap and stem on the NA side auto-suppress. Passing
0 still renders but emits a soft deprecation warning; silence with
options(ggerror.silent_zero_warning = TRUE) or tune the detection
threshold via options(ggerror.zero_threshold = ...).
- New diagnostics: NA values in symmetric
error now warn with row
indices (class ggerror_warn_error_na); negative values without
sign_aware abort with row indices and a migration suggestion (class
ggerror_error_negative_error_aes).
- New vignette
lm-residuals covering stat_error() and sign_aware
with an lm() residual-plot demo.
ggerror 0.4.0
ggerror 0.3.0 (2026-04-21)
ggerror now includes a complete aestetic support for one sided error bars.
- Added fixed per-side styling parameters for error bars:
colour_neg /
colour_pos, fill_neg / fill_pos, linewidth_neg / linewidth_pos,
linetype_neg / linetype_pos, alpha_neg / alpha_pos, and
width_neg / width_pos.
- Fixed bug from 0.2.0: When supplying one-sided error bars, the unused side's width can be set to
0, default, for example
geom_error(aes(error_neg = 0, error_pos = se), width_neg = 0).
- Added a
vignette("ggerror") covering symmetric, asymmetric, one-sided,
and per-side styling workflows.
ggerror 0.2.0
- New
error_neg / error_pos aesthetics for asymmetric error bars. The
bar extends error_neg in the negative direction and error_pos in the
positive direction along the non-categorical axis.
- One-sided bars are supported by setting the unused side to
0 explicitly
(e.g. aes(error_neg = 0, error_pos = se) for an upward-only bar).
- The existing symmetric
error aesthetic is unchanged. Combining error
with either error_neg / error_pos, or providing only one of the
asymmetric pair, raises an error.
ggerror 0.1.0
- Initial release. Provides
geom_error() (plus geom_error_linerange(),
geom_error_crossbar(), geom_error_pointrange()) wrapping ggplot2's
error geoms behind a single error aesthetic with automatic orientation
inference.