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[其他] ggplot2 2.2.0 coming soon!

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い明 媚 投递于 2016-10-1 12:41:00
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I’m planning to release ggplot2 2.2.0 in early November. In preparation, I’d like to announce that a release candidate is now available: version 2.1.0.9001. Please try it out, and file an issue on GitHub if you discover any problems. I hope we can find and fix any major issues before the official release.
  Install the pre-release version with:
  1. # install.packages("devtools")
  2. devtools::install_github("hadley/ggplot2")
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  If you discover a major bug that breaks your plots, please file a minimal reprex , and then roll back to the released version with:
  1. install.packages("ggplot2")
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ggplot2 2.2.0 will be a relatively major release including:
  
       
  • Subtitles and captions.   
  • A large rewrite of the facetting system.   
  • Improved theme options.   
  • Better stacking   
  • Numerous bug fixes and minor improvements .  
   The majority of this work was carried out by Thomas Pederson , who I was lucky to have as my “ggplot2 intern” this summer. Make sure to check out other visualisation packages:  ggraph ,  ggforce , and  tweenr .
     Subtitles and captions

    Thanks to Bob Rudis , you can now add subtitles and captions:
  
  1. ggplot(mpg, aes(displ, hwy)) +
  2.   geom_point(aes(color = class)) +
  3.   geom_smooth(se = FALSE, method = "loess") +
  4.   labs(
  5.     title = "Fuel efficiency generally decreases with engine size",
  6.     subtitle = "Two seaters (sports cars) are an exception because of their light weight",
  7.     caption = "Data from fueleconomy.gov"
  8.   )
  9. unnamed-chunk-3-1

    ggplot2 2.2.0 coming soon!-1-技术控-available,including,planning,discover,official
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   These are controlled by the theme settings plot.subtitle and  plot.caption .
    The plot title is now aligned to the left by default. To return to the previous centering, use theme(plot.title = element_text(hjust = 0.5)) .
       Facets

    The facet and layout implementation has been moved to ggproto and received a large rewrite and refactoring. This will allow others to create their own facetting systems, as descrbied in the Extending ggplot2 vignette. Along with the rewrite a number of features and improvements has been added, most notably:
   
       
  • Functions in facetting formulas, thanks to  Dan Ruderman .
    1. ggplot(diamonds, aes(carat, price)) +
    2.   geom_hex(bins = 20) +
    3.   facet_wrap(~cut_number(depth, 6))
    4. unnamed-chunk-4-1

      ggplot2 2.2.0 coming soon!-2-技术控-available,including,planning,discover,official
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  • Axes were dropped when the panels in  facet_wrap()  did not completely fill the rectangle. Now, an axis is drawn underneath the hanging panels:
    1. ggplot(mpg, aes(displ, hwy)) +
    2.   geom_point() +
    3.   facet_wrap(~class)
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    ggplot2 2.2.0 coming soon!

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  • It is now possible to set the position of the axes through the  position  argument in the scale constructor:
    1. ggplot(mpg, aes(displ, hwy)) +
    2.   geom_point() +
    3.   scale_x_continuous(position = "top") +
    4.   scale_y_continuous(position = "right")
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    ggplot2 2.2.0 coming soon!

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  • You can display a secondary axis that is a one-to-one transformation of the primary axis with the  sec.axis  argument:
    1. ggplot(mpg, aes(displ, hwy)) +
    2.   geom_point() +
    3.   scale_y_continuous(
    4.     "mpg (US)",
    5.     sec.axis = sec_axis(~ . * 1.20, name = "mpg (UK)")
    6.   )
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    ggplot2 2.2.0 coming soon!

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  • Strips can be placed on any side, and the placement with respect to axes can be controlled with the  strip.placement  theme option.
    1. ggplot(mpg, aes(displ, hwy)) +
    2.   geom_point() +
    3.   facet_wrap(~ drv, strip.position = "bottom") +
    4.   theme(
    5.     strip.placement = "outside",
    6.     strip.background = element_blank(),
    7.     strip.text = element_text(face = "bold")
    8.   ) +
    9.   xlab(NULL)
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    ggplot2 2.2.0 coming soon!

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       Theming

   
       
  • Blank elements can now be overridden again so you get the expected behavior when setting e.g.  axis.line.x .   
  • element_line()  gets an  arrow  argument that lets you put arrows on axes.
    1. arrow <- arrow(length = unit(0.4, "cm"), type = "closed")
    2. ggplot(mpg, aes(displ, hwy)) +
    3.   geom_point() +
    4.   theme_minimal() +
    5.   theme(
    6.     axis.line = element_line(arrow = arrow)
    7.   )
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    ggplot2 2.2.0 coming soon!

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  • Control of legend styling has been improved. The whole legend area can be aligned according to the plot area and a box can be drawn around all legends:
    1. ggplot(mpg, aes(displ, hwy, shape = drv, colour = fl)) +
    2.   geom_point() +
    3.   theme(
    4.     legend.justification = "top",
    5.     legend.box.margin = margin(3, 3, 3, 3, "mm"),
    6.     legend.box.background = element_rect(colour = "grey50")
    7.   )
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    ggplot2 2.2.0 coming soon!

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  • panel.margin  and  legend.margin  have been renamed to  panel.spacing  and  legend.spacing  respectively as this better indicates their roles. A new  legend.margin  has been actually controls the margin around each legend.   
  • When computing the height of titles ggplot2, now inclues the height of the descenders (i.e. the bits  g  and  y  that hang underneath). This makes improves the margins around titles, particularly the y axis label. I have also very slightly increased the inner margins of axis titles, and removed the outer margins.   
  • The default themes has been tweaked by  Jean-Olivier Irisson  making them better match  theme_grey() .   
  • Lastly, the  theme()  function now has named arguments so autocomplete and documentation suggestions are vastly improved.   
       Stacking bars

    position_stack() and  position_fill() now stack values in the reverse order of the grouping, which makes the default stack order match the legend.
  
  1. install.packages("ggplot2")0
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ggplot2 2.2.0 coming soon!

ggplot2 2.2.0 coming soon!-9-技术控-available,including,planning,discover,official

    (Note also the new geom_col() which is short-hand for  geom_bar(stat = "identity") , contributed by Bob Rudis.)
   Additionally, you can now stack negative values:
  
  1. install.packages("ggplot2")1
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ggplot2 2.2.0 coming soon!

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   The overall ordering cannot necessarily be matched in the presence of negative values, but the ordering on either side of the x-axis will match.
    If you want to stack in the opposite order, try  forcats::fct_rev()  :
  
  1. install.packages("ggplot2")2
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unnamed-chunk-13-1

ggplot2 2.2.0 coming soon!-21-技术控-available,including,planning,discover,official



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tmddl 投递于 2016-10-20 13:07:13
传说中的沙发???哇卡卡
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羊威力 投递于 2016-11-17 15:56:44
羊威力天天灌水,好内疚!
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小猪在雨天 投递于 2016-11-21 11:57:34
い明 媚是我最崇拜的人!
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