<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[艳艳博客]]></title><description><![CDATA[跟着兴趣学习---兴趣是最好的老师]]></description><link>https://blog.youkuaiyun.com/COMEYAN</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; COMEYAN]]></copyright><item><title><![CDATA[[git] mac系统下git提交出错]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/124660129</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/124660129</guid><author>COMEYAN</author><pubDate>Mon, 09 May 2022 10:06:12 +0800</pubDate><description><![CDATA[问题描述
mac系统 利用git时候 commit步出
Your name and email address were configured automatically based
on your username and hostname. Please check that they are accurate.
You can suppress this message by setting them explicitly:
	git config --global user.name "Your N]]></description><category></category></item><item><title><![CDATA[[code] Chap 10 for ESL]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/84995711</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/84995711</guid><author>COMEYAN</author><pubDate>Thu, 13 Dec 2018 22:25:40 +0800</pubDate><description><![CDATA[Figure 10.2
Firstly define the function to generate simulated data.
# function for generating data for figure 10.2
gen_eq_10_2_data &amp;amp;amp;amp;amp;lt;- function(N = 2000, p = 10){
      X &amp;amp;amp;amp;amp;lt;- matrix( rnorm(N*p), ...]]></description><category></category></item><item><title><![CDATA[[Machine Learning] XGBoost]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/79628037</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/79628037</guid><author>COMEYAN</author><pubDate>Tue, 20 Mar 2018 17:03:21 +0800</pubDate><description><![CDATA[1. XGBoost介绍

XGBoost模型即是一些“串联”树结构的组合，最终预测结果由多棵树共同决定。


  模型公式：y=f(z)=∑Kk=1fk(z)y=f(z)=∑k=1Kfk(z)y=f(z)=\sum_{k=1}^K f_k(z) 
  模型预测：y^i=∑Kk=1f^k(xi)y^i=∑k=1Kf^k(xi)\hat y_i = \sum_{k=1}^K \hat f_k(x_i...]]></description><category></category></item><item><title><![CDATA[[Python] How to change python version for mac]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/79600012</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/79600012</guid><author>COMEYAN</author><pubDate>Sun, 18 Mar 2018 13:41:23 +0800</pubDate><description><![CDATA[step 1

Open terminal and write  


  open ~/.bash_profile




step 2

Put external environment variable


  export 
  PATH=${PATH}:/Library/Frameworks/Python.framework/Versions/3.6/bin




step 3

Re...]]></description><category></category></item><item><title><![CDATA[[转]解决 Excel 打开 UTF-8 编码 CSV 文件乱码的 BUG]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/56009590</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/56009590</guid><author>COMEYAN</author><pubDate>Mon, 20 Feb 2017 11:13:34 +0800</pubDate><description><![CDATA[解决 Excel 打开 UTF-8 编码 CSV 文件乱码的 BUG 
作者：oyi319出处：http://blog.youkuaiyun.com/oyi319/article/details/6406506直接用 Excel 打开 UTF-8 编码的 CSV 文件会导致汉字部分出现乱码。 
原因是 Excel 以 ANSI 格式打开，不会做编码识别。打开 UTF-8 编码的 CSV 文件的方法：1) 打开]]></description><category></category></item><item><title><![CDATA[Python 100练习题[1-10]]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/53908894</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/53908894</guid><author>COMEYAN</author><pubDate>Wed, 28 Dec 2016 15:22:48 +0800</pubDate><description><![CDATA[1.. 有四个数字：1、2、3、4，能组成多少个互不相同且无重复数字的三位数？各是多少？import itertoolsdef permutation12341():
    result0= list(itertools.permutations('1234', 3))
    result1 = [''.join(i) for i in result0]
    result2 = [int(i]]></description><category></category></item><item><title><![CDATA[Install pip and ipython]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/53502031</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/53502031</guid><author>COMEYAN</author><pubDate>Wed, 07 Dec 2016 10:02:33 +0800</pubDate><description><![CDATA[install pipsudo easy_install pip install ipythonsudo pip install ipython
....end withSuccessfully installed appnope-0.1.0 backports.shutil-get-terminal-size-1.0.0 decorator-4.0.10 enum34-1.1.6 ipython-]]></description><category></category></item><item><title><![CDATA[[Latex] Beamer with Overlay]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/53282793</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/53282793</guid><author>COMEYAN</author><pubDate>Tue, 22 Nov 2016 10:13:30 +0800</pubDate><description><![CDATA[The numbers inside the pointed brackets tell LaTeX which slides the item should appear on. For example  \textbf<2-3>{Only shown on slides 2 and 3} 
  \item<-2,4-5,7>{Only shown on slides 1,2,4,5 and 7}]]></description><category></category></item><item><title><![CDATA[傅里叶分析之掐死教程]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/53128783</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/53128783</guid><author>COMEYAN</author><pubDate>Fri, 11 Nov 2016 14:55:45 +0800</pubDate><description><![CDATA[作者：Heinrich 
链接：https://zhuanlan.zhihu.com/p/19763358 
来源：知乎 
著作权归作者 
所有。商业转载请联系作者获得授权，非商业转载请注明出处。谨以此文献给大连海事大学的吴楠老师，柳晓鸣老师，王新年老师以及张晶泊老师。转载的同学请保留上面这句话，谢谢。如果还能保留文章来源就更感激不尽了。——更新于2014.6.6，想直接看更新的同学可以直接跳到第四]]></description><category></category></item><item><title><![CDATA[Sublime text3作为Python的IDE不能正常使用input和raw_input]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/53082678</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/53082678</guid><author>COMEYAN</author><pubDate>Tue, 08 Nov 2016 15:26:11 +0800</pubDate><description><![CDATA[首先安装SublimeREPL(利用PackageCtrol)，然后修改Preference->Key Bindings-User 把下面这段话copy进去[ 
    {“keys”:[“ctrl+r”] ,  
    “caption”: “SublimeREPL: Python - RUN current file”, 
    “command”: “run_existing_window]]></description><category></category></item><item><title><![CDATA[Reshape Data Form in R]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/51688951</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/51688951</guid><author>COMEYAN</author><pubDate>Thu, 16 Jun 2016 04:48:28 +0800</pubDate><description><![CDATA[Convert long form data to wide or wide to long.]]></description><category></category></item><item><title><![CDATA[How to write Chinese report using R Markdown]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/51688886</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/51688886</guid><author>COMEYAN</author><pubDate>Thu, 16 Jun 2016 03:35:55 +0800</pubDate><description><![CDATA[Tell you how to write Chinese report using R markdown.]]></description><category></category></item><item><title><![CDATA[[Exploratory Data Analysis] Project 1]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/51033667</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/51033667</guid><author>COMEYAN</author><pubDate>Fri, 01 Apr 2016 06:21:31 +0800</pubDate><description><![CDATA[Project summary
Review criteria
Loading the data
Making Plots
Code
Project summaryThis assignment uses data from the UC Irvine Machine Learning Repository, a popular repository for machine learning dat]]></description><category></category></item><item><title><![CDATA[[Exploratory Data Analysis] Week 1]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/51033666</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/51033666</guid><author>COMEYAN</author><pubDate>Fri, 01 Apr 2016 06:20:19 +0800</pubDate><description><![CDATA[Principles of analysis graphics
Exploratory Graphics
Plotting
Base Plotting System
Graphics Devies
Principles of analysis graphics
Principle 1: Show corparisons 
Evidence for a pyhothesis is always rel]]></description><category></category></item><item><title><![CDATA[[Putty] Running R and MATLAB in linux via putty]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/51002618</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/51002618</guid><author>COMEYAN</author><pubDate>Tue, 29 Mar 2016 02:04:31 +0800</pubDate><description><![CDATA[R command:nohup R CMD BATCH (your file) &MATLAB command:nohup matlab <file.m> file.out&]]></description><category></category></item><item><title><![CDATA[[R and Matlab] Add or delete multi-line comments]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/50960060</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/50960060</guid><author>COMEYAN</author><pubDate>Wed, 23 Mar 2016 04:02:54 +0800</pubDate><description><![CDATA[For R, use Ctrl+Shift+C to add and delete multi-line comments.For MATLAB, us Ctrl+R to add multi-line comments and Ctrl+T to delete multi-line comments.]]></description><category></category></item><item><title><![CDATA[[Matlab] Changing Language]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/50960011</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/50960011</guid><author>COMEYAN</author><pubDate>Wed, 23 Mar 2016 02:02:26 +0800</pubDate><description><![CDATA[If you want to reset your interface language to English, you just need to go to the folder you install MATLAB: X:\MATLAB\R2014a\java\jar. And rename the folder “zh_CN” to any name you want, because thi]]></description><category></category></item><item><title><![CDATA[[R] ADMM for lasso]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/50951870</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/50951870</guid><author>COMEYAN</author><pubDate>Tue, 22 Mar 2016 04:40:20 +0800</pubDate><description><![CDATA[This is a short code for studying admm for lasso.#--------------------------- functions to be used ----------------------## the main function f = g + h
f <- function(x, A, b, lambda){
        1/2*norm(]]></description><category></category></item><item><title><![CDATA[[R] Proximal Gradient Descend for Lasso]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/50951083</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/50951083</guid><author>COMEYAN</author><pubDate>Mon, 21 Mar 2016 22:50:42 +0800</pubDate><description><![CDATA[This is a short code for studying proximal gradient descent algorithm.#--------------------------- functions to be used ----------------------## the main function f = g + h
f <- function(x, A, b, lambd]]></description><category></category></item><item><title><![CDATA[[Getting and Cleaning data] Project]]></title><link>https://blog.youkuaiyun.com/COMEYAN/article/details/50920166</link><guid>https://blog.youkuaiyun.com/COMEYAN/article/details/50920166</guid><author>COMEYAN</author><pubDate>Fri, 18 Mar 2016 06:12:08 +0800</pubDate><description><![CDATA[Project introduction
Project code
More details can be found here.Project introductionThe purpose of this project is to demonstrate your ability to collect, work with, and clean a data set.Review criter]]></description><category></category></item></channel></rss>