matplotlib

How to move legend to outside of a seaborn scatterplot?

由 好久不见. 提交于 2021-02-07 01:26:51
问题 import matplotlib.pyplot as plt import seaborn as sns import pandas as pd sns.set(style="darkgrid") g = sns.scatterplot(x="Area", y="Rent/Sqft", hue="region", style="availability", data=df) When I run this I get the below plot. I want to move the legend outside of plot. I googled and tried the following g.legend(loc='right', bbox_to_anchor=(1.25, 0.5), ncol=1) plt.show() But I don't get any output. Moreover, I can't understand how the object plt is connected to my sns object I am using

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由 最后都变了- 提交于 2021-02-06 15:47:45
“二次元，鬼畜，动漫”是大家提到B站，最容易冒出来的关键词！然而央视网一条微博却表示：过去一年有近2000万人在B站学习，相当于去年高考人数的2倍！B站正在成为年轻人学习的首要阵地。 下面整理一些适合程序员的学习资源，建议大家收藏！ 一、数学基础： 1.Up主：3Blue1Brown的数学基础： https://space.bilibili.com/88461692 用动画讲述数学专业知识，其视频涵盖了线性代数、微积分、拓扑学等领域，每门课都配有直观生动的动画演示，帮助观众加深对数学概念定理的理解。 2.数学分析： https://www.bilibili.com/video/av8042121 复旦陈纪修老师的数学分析视频课程，共214讲。 3.数学建模：www.bilibili.com/video/av8824879 清华大学数学建模公开课，共84讲。 4.统计学： https://www.bilibili.com/video/av7199273 可汗学院公开课，统计学所有内容都涵盖了。共85讲。 二、C与C++篇 1.《带你学C带你飞》（小甲鱼）： https://www.bilibili.com/video/av27744141 2.《C++快速入门》（小甲鱼）： https://www.bilibili.com/video/av28127959 三、Python 入门&

双节棍「大师」鱼佬亲传武功秘籍：如何进行一场数据挖掘算法竞赛？

由 自作多情 提交于 2021-02-06 15:11:16
当我们掌握了一定的机器学习和数据挖掘基础理论后，参加一场数据算法竞赛可以接触真实的业务和数据，将理论知识过渡到工程应用，同时可以在竞赛过程中进行反复地思考，强化对理论知识的理解。 本次分享，我将以个人竞赛经历和圈内整体情况为背景和大家聊聊如何进行一场数据挖掘算法竞赛，以及赛前、赛中和赛后需要做哪些事情。最后还将进行一个案例分享，来看看我是如何进行一场比赛的。 注： 本文详细视频 晚7点 在阿里天池分享，链接可回看 https://tianchi.aliyun.com/course/live?liveId=41153 主题大纲 为什么要参加数据挖掘竞赛？能带来什么？ 参加竞赛需要哪些基础知识和技能？ 如何选择适合自己的竞赛？ 竞赛中的几个主要模块议 竞赛过程中最重要的事情 好的竞赛总结比竞赛过程更重要 案例分享（ 天池“全国城市计算AI挑战赛”） 为什么要参加数据挖掘竞赛？ 从理论知识到从理论知识到工程应用；真实数据，增加项目经验 求职加分，企业看重；企业办赛，人才选拔 奖金的激励（丰厚） 交友，学习，PK高手 参加竞赛需要的基础知识和技能？ 理论知识掌握：评价指标、数据分析、特征工程、常用模型 工具的掌握 语言的选择：Python 可视化工具：Matplotlib、Seaborn 数据处理工具：Pandas、NumPy 机器学习库：Sklearn、XGBoost、LightGBM

How to get an open and scaling arrow head in matplotlib

由 强颜欢笑 提交于 2021-02-06 13:53:53
问题 In a Seaborn barplot, I want to annotate a column with an arrow. Now, while I see how this might seem a little discerning, I would really like that arrow to both have an open head (i.e., not a closed triangle as a head, but two open lines) and scale when I resize the figure. I have found two matplotlib ways of adding arrows (the arrow and annotate methods), but each one seems to lack one of these features. This code plots both side by side: import seaborn as sns sns.plt.subplot(121) ax = sns

Python Reading from a file to create a weighted directed graph using networkx

由 情到浓时终转凉″ 提交于 2021-02-06 11:07:55
问题 I am new at python and Spyder. I am trying to read from a text file with format into a graph using networkx: FromNodeId ToNodeId Weight 0 1 0.15 0 2 0.95 0 3 0.8 0 4 0.5 0 5 0.45 0 6 0.35 0 7 0.4 0 8 0.6 0 9 0.45 0 10 0.7 1 2 0.45 1 11 0.7 1 12 0.6 1 13 0.75 1 14 0.55 1 15 0.1 ... I want to use Networkx graph format that can store such a large graph(about 10k nodes, 40k edges). import networkx as nx import matplotlib.pyplot as plt g = nx.read_edgelist('test.txt', nodetype=int, create_using=

Python Reading from a file to create a weighted directed graph using networkx

由 五迷三道 提交于 2021-02-06 11:06:52
问题 I am new at python and Spyder. I am trying to read from a text file with format into a graph using networkx: FromNodeId ToNodeId Weight 0 1 0.15 0 2 0.95 0 3 0.8 0 4 0.5 0 5 0.45 0 6 0.35 0 7 0.4 0 8 0.6 0 9 0.45 0 10 0.7 1 2 0.45 1 11 0.7 1 12 0.6 1 13 0.75 1 14 0.55 1 15 0.1 ... I want to use Networkx graph format that can store such a large graph(about 10k nodes, 40k edges). import networkx as nx import matplotlib.pyplot as plt g = nx.read_edgelist('test.txt', nodetype=int, create_using=

How does imshow handle the alpha channel with an M x N x 4 input?

由 只愿长相守 提交于 2021-02-06 10:59:45
问题 GH issue #3343 I am using the imshow function in matplotlib to visualize some data. What I have are two arrays, A and B , that are the same size. I would like to use a colormap to show scalar values in A , and I would like to use the alpha channel to show the scalar values in B . In other words, if the value at a given coordinate in both A and B is large, then the pixel in the plot will be bright green and opaque. If it is large in A and not B , then it will be bright green but mostly

How does imshow handle the alpha channel with an M x N x 4 input?

由 馋奶兔 提交于 2021-02-06 10:57:57
问题 GH issue #3343 I am using the imshow function in matplotlib to visualize some data. What I have are two arrays, A and B , that are the same size. I would like to use a colormap to show scalar values in A , and I would like to use the alpha channel to show the scalar values in B . In other words, if the value at a given coordinate in both A and B is large, then the pixel in the plot will be bright green and opaque. If it is large in A and not B , then it will be bright green but mostly

How could I arrange multiple pyplot figures in a kind of layout?

由 风格不统一 提交于 2021-02-06 10:49:43
问题 I created a software to do signal analyses. There are multiple functions, and each finally display a complex figure containing labels, plot, axhspan, axvspan etc... Usually, these functions are called individually. Everyone of my functions returns a figure object, that I can save in pdf for example. def Myfunction1(self): fig = pyplot.figure() ...do somestuff, create my figure pyplot.show() fig.savefig('C:\MyFigurefolder\figure1.pdf', dpi=300) return fig def Myfunction2(self): fig = pyplot

How could I arrange multiple pyplot figures in a kind of layout?

由 不打扰是莪最后的温柔 提交于 2021-02-06 10:49:04
问题 I created a software to do signal analyses. There are multiple functions, and each finally display a complex figure containing labels, plot, axhspan, axvspan etc... Usually, these functions are called individually. Everyone of my functions returns a figure object, that I can save in pdf for example. def Myfunction1(self): fig = pyplot.figure() ...do somestuff, create my figure pyplot.show() fig.savefig('C:\MyFigurefolder\figure1.pdf', dpi=300) return fig def Myfunction2(self): fig = pyplot
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