Switched from NEWS to NEWS.md
manual_pal() produces a warning if n is greater than the number of values in the palette (@jrnold, #68).
precision(0) now returns 1, which means percent(0) now returns 0% (#50).
scale_continuous() uses a more correct check for numeric values.
NaN is correctly recognised as a missing value by the gradient palettes (ggplot2#1482).
rescale() preserves missing values in input when the range of x is (effectively) 0 (ggplot2#985).
Continuous colour palettes now use colour_ramp() instead of colorRamp(). This only supports interpolation in Lab colour space, but is hundreds of times faster.
date_format() gains an option to specify time zone (#51).
dollar_format() is now more flexible and can add either prefixes or suffixes for different currencies (#53). It gains a negative_parens argument to show negative values as ($100) and now passes missing values through unchanged (#40, @dougmitarotonda).
New ordinal_format() generates ordinal numbers (1st, 2nd etc) (@aaronwolen, #55)
New unit_format() makes it easier to add units to labels, optionally scaling (@ThierryO, 46)
New wrap_format() function to wrap character vectors to a desired width. (@jimhester, #37).
New color scaling functions col_numeric(), col_bin(), col_quantile(), and col_factor(). These functions provide concise ways to map continuous or categorical values to color spectra.
New colour_ramp() function for performing color interpolation in the CIELAB color space (like grDevices::colorRamp(space = 'Lab'), but much faster).
boxcox_trans() returns correct value when p is close to zero (#31).
dollar() and percent() both correctly return a zero length string for zero length input (@BrianDiggs, #35)
brewer_pal() gains a direction argument to easily invert the order of colours (@jiho, #36).
show_col() has additional options to showcase colors better (@jiho, #52)
Relaxed tolerance in zero_range() to .Machine$double.eps * 1000 (#33).
Eliminate stringr dependency.
Fix outstanding errors in R CMD check
floor_time calls to_time, but that function was moved into a function so it was no longer available in the scales namespace. Now floor_time has its own copy of that function. (Thanks to Stefan Novak)
Color palettes generated by brewer_pal no longer give warnings when fewer than 3 colors are requested. (Winston Chang)
abs_area andrescale_maxfunctions have been added, for scaling the area of points to be proportional to their value. These are used byscale_size_area` in ggplot2.
zero_range has improved behaviour thanks to Brian Diggs.
brewer_pal complains if you give it an incorrect palette type. (Fixes #15, thanks to Jean-Olivier Irisson)
shape_pal warns if asked for more than 6 values. (Fixes #16, thanks to Jean-Olivier Irisson)
time_trans gains an optional argument tz to specify the time zone to use for the times. If not specified, it will be guess from the first input with a non-null time zone.
date_trans and time_trans now check that their inputs are of the correct type. This prevents ggplot2 scales from silently giving incorrect outputs when given incorrect inputs.
Change the default breaks algorithm for cbreaks() and trans_new(). Previously it was pretty_breaks(), and now it's extended_breaks(), which uses the extended() algorithm from the labeling package.
fixed namespace problem with fullseq
suppressWarnings from train_continuous so zero-row or all infinite data frames don't potentially cause problems.
check for zero-length colour in gradient_n_pal
added extended_breaks which implements an extension to Wilkinson's labelling approach, as implemented in the labeling package. This should generally produce nicer breaks than pretty_breaks.
alpha can now preserve existing alpha values if alpha is missing.
log_breaks always gives breaks evenly spaced on the log scale, never evenly spaced on the data scale. This will result in really bad breaks for some ranges (e.g 0.5-0.6), but you probably shouldn't be using log scales in that situation anyway.
censor and squish gain only.finite argument and default to operating only on finite values. This is needed for ggplot2, and reflects the use of Inf and -Inf as special values.
bounds functions now force evaluation of range to avoid bug with S3 method dispatch inside primitive functions (e.g. [)
Simplified algorithm for discrete_range that is robust to stringsAsFactors global option. Now, the order of a factor will only be preserved if the full factor is the first object seen, and all subsequent inputs are subsets of the levels of the original factor.
scientific ensures output is always in scientific format and off the specified number of significant digits. comma ensures output is never in scientific format. (Fixes #7)
Another tweak to zero_range to better detect when a range has zero length. (Fixes #6)