The purpose of this paper is to introduce some fine operation of Ggplot2 package in R language, which is mainly applicable to people who have a certain understanding of R-Drawing and need to be more finely transformed into diagrams, especially those who have just turned ggplot2 from Excel, and have more frequent drawing needs. No discussion of those very cool charts, with practical commercial charts as the
Directory:
Original pattern
How to remove the clutter from the center of a pie chart
How to remove a label next to a pie chart
How to get rid of the upper left corner of the extra horizontal line
How to remove the caption from the legend and place the legend above
How to add a percentage to a legend's label
How to make a small piece of pie chart appear clockwise from large to small
How to remove the numbers on the white box
How to add a percentage to a gr
June has been busy in the final exam, today to quickly learn the Ggplot2 package of simple drawing.There are also many drawing functions in the base package of R, such as plot (); Barplot (); Qqplot ();But there is also the famous Ggplot2 bag, using the function of this package to draw a beautiful picture, and the use of flexible.
In Ggplot's Official Handbook, a statistical graph is made up of data to geom
Preface:Everyone should know that ggplot2 and shiny are all seven of the R language weapons, although their ability is very fluid force, but also out "Walk the lake" for many years, but in the domestic relevant knowledge sharing is relatively small. Many times encountered problems have to search the wall, so despite their qualifications is still shallow, but I would like to be able to make a summary of their own knowledge to share, I hope to be helpfu
Directory:
Initial pattern
How to modify the width of bar bars
How to modify the order of bar bars
How do I add text to the bar
(For more information on legends, coordinate systems, etc. see: R, Ggplot2, shiny summary)Initial pattern:library(ggplot2)library(ggthemes)dtdata.frame(obj = c(‘A‘,‘D‘,‘B‘,‘E‘,‘C‘), val = c(2,15,6,9,7))p = ggplot(dt, aes(x = obj, y = val, fill = obj, group
Introduction
There is no doubt about the quality of the Ggplot2 package, but its drawing grammar is still a little difficult for beginners, Ggplot2: Data analysis and Graphic Art This book also introduces the basic philosophy and operation of Ggplot2 package, and the personal feeling examples are not rich enough, So the use of the package is still stuck at the da
Directory:Initial pattern How to modify the width of a bar how to change the order of bars how to add text to a bar
(For more on the legend, coordinate system, etc. see: R, Ggplot2, shiny summary)
Initial pattern:
Library (GGPLOT2)
Library (ggthemes)
dt = data.frame (obj = C (' A ', ' D ', ' B ', ' E ', ' C '), val = C (2,15,6,9,7))
p = Ggplot (DT, AES (x = obj, y = val, fill = obj, group = factor (1))) +
data:The Diamonds dataset in Ggplot2, using a random sample to fetch 1000 samples, the code is as follows:> Library (GGPLOT2)> Data ("Diamonds")> Head (Diamonds)> set.seed (1234)> Small Histogram> Ggplot (Small) +geom_histogram (Aes (X=price), fill= "Cornflowerblue", colour= "Black", binwidth= 1000)Stacked HistogramUse the "Cut" column in the data (divided into 5 grades, used to differentiate the quality of
ggplot2– Practice (change of legend: Take the frequency scatter graph as an example) Ggplot2 direct realization
Paint code:The data is two columns and the second is the factor type.
> Head (plotdat)
Soc Soc Low alarm
1 0 normal
2 2 error
3 0 Normal
4 1 error
5 0 normal
# # #大小和高度都代表频率 ###
g # #设定名字
Problem
There are three questions about the legend:1. How to remove t
R3.2.2 Version Installation Ggplot2 installed Ggplot2 Today, began to use the R3.2.1 version, but has been an error. The back of a new R3.2.2, but the installation is still the same error, the reason is Munsell this package incompatibility problem, find the way to solve this problem is the local zip installation Munsell Package: The following: Remove the Ggplot2
we are probably not unfamiliar with the following infographic, which uses 100% stacked area charts to represent the proportions of different countries in different periods of time. This is a very interesting expression, and the area chart is a very common data graph, now let's look at how to use Ggplot2 and Plot.area in R to make an area chart. before making a chart, let's first create some random sample data . The R code is as follows:
1 # C
Library (GGPLOT2)############################################## summaryse############################################### Summarizes data.## Gives count, mean, standard deviation, standard error of the mean, and confidence interval (default 95% ). # # DATA:A Data frame.## measurevar:the name of a column that contains the variable to be summariezed## groupvars : A vector containing names of columns that contain grouping variables## Na.rm:a Boolean that
The following plots take the Weibull distribution (Weber distribution, Weibull distribution) as an exampleFor Weibull distribution (Weber distribution, Weibull distribution), please refer to my blog http://www.cnblogs.com/wwxbi/p/6141501.htmlLibrary (GGPLOT2)# both D and Y here are in order of sizedYDfGgplot (Df,aes (x=d,y)) +Geom_line (colour= "green") +Ggtitle ("Weibull distribution \ n probability density map")# Here's H no size orderH Ggplot (Null
1. color and shape control
Data features can be expressed not only by coordinates, but also by different colors or shapes. Taking the MPG dataset as an example, the variables used include cty (driving distance in the city), hwy (highway driving distance), displ (displacement size), and year (production year)
1 library(ggplot2)2 p
We will use a red circle to represent the models produced in 1999, and a blue triangle to represent the displacement in
same, but theoretically, different layers can have different data.Qplot (displ, Hwy, data=mpg, facets =. ~ year) + Geom_smooth ()GgplotBasic Drawing type:These geometric elements are the basis of ggplot. They combine to form complex images. Most of them correspond to a specific drawing type.Geom_area ()Geom_bar ()Geom_line ()Geom_point ()Geom_polygon ()Geom_text ()Geom_tile ()> Library ("Ggplot2")>Head (MPG) manufacturer model DISPL Year CYL Trans DR
After Geom settings and scale settings, to make the picture beautiful, the theme setting is not less thanElement_text () is an important piece of content in the theme settingsElement_text(Family =Null, Face =Null, Colour =Null, size =Null, Hjust =Null, Vjust =Null, Angle =Null, lineheight =Null)Parameter family represents a font styleThe parameter face represents the font format, the desired value ("plain", "italic", "bold", "Bold.italic")Parameter colour indicates font colorParameter size indi
Ggplot2 scale correlation settings-coordinate transformationThere are several forms of axis conversion in R, including logarithmic conversion, square root conversion, and pre-and post-scale exchange of coordinates.The functions used are:SCALE_X_LOG10 (...) SCALE_Y_LOG10 (...) Scale_x_sqrt (...) Scale_y_sqrt (...) Scale_x_reverse (...) Scale_y_reverse (...) The above functions are actually based on scale_x_continuous (name = Waiver (), breaks = Waiver
)Polar coordinate transformation: can make spider chart or pie chart effect, parameter aspect Theta can choose X or Y, indicate the extension coordinates, start is coordinates start angle, default actually position is 12 o'clock,The direction represents the direction of the data, 1 is clockwise, and 1 is counterclockwise.Let's look at some specific examples:Library (Ggplot2) P The Cartesian coordinate transformation is the same as the normal drawing
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