Python and R are the two major mainstream languages for today's data analysis. As a student of the statistical department, I was first approached by R, and then by Python. Python is a universal programming language, and scientific computing, data analysis is an important part of it, but not all, and r is more emphasis on statistical analysis, after all, R is a statistical scientist invented, in itself is for statistics. The advantage of Python is its versatility, with Python in almost all fields
Rpy2 is the R language interface module in Python, today, a afternoon, and finally put Rpy2, record the installation process need to pay attention to the problem:1. During the R compilation process, the--enable-r-shlib option must be selected to compile R into the Lib mode, in which case the path-to-r/lib/libr.so library is generated;At the same time, ensure that the same directory librblas.so, librlapack.s
RPY2 Environment Configuration Recently, I want to integrate R into a web system with flask as a back-end framework, and perform data statistics analysis on the server side. The R language needs to be integrated into Python, and it is found that Rpy2 in Python can invoke the R language, so it took some time to configure the Rpy2. Do a summary.
install R an
In Python direct pip install Rpy2, error, not carefully read the error, directly downloaded the WHL file (https://www.lfd.uci.edu/~gohlke/pythonlibs/) to install.You can import rpy2 at this time, but you will be prompted with the import rpy2.robjects "Rpy2 error Wac-a-mole:r_user not defined", the workaround:
Add
R (also known as R) is an open source cross-platform numerical statistics and numerical graphical presentation tool. Rpy2 is a third-party library that Python calls R directly, enabling objects that use Python to read R, methods to call R, and Python and r data structure transformations. Here is the main introduction in the absence of the network, the source code installation Rpy2 Some methods to make a mem
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
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
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Original pattern
How to remove the clutter from the center of a pie chart
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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
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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))) +
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
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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
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
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
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
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
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