Sentences1

Learning a foreign language was one of the most difficult yet most rewarding experiences of my life. How can I reward your help? She seemed another strange object, old yet new, girl yet woman, female yet male, human yet beast-like. I don’t eat much, yet I am a size 16. My experience with learning a foreign language began in junior middle school,when I took my first English class. Because of this positive method,I eagerly answered all the questions I could,never worrying much about making mistakes. We listen eagerly, for he brings news of our families. While my former teacher had been patient with all of the students,my new teacher quickly punished those who gave incorrect answers. They were grinning and watching while one man laughed and poured beer over the head of another.     阅读全文
Chilly's avatar
Chilly 1月 13, 2015

视频测试

视频测试     阅读全文
Chilly's avatar
Chilly 1月 13, 2015

Words1

1-51Pronunciation; etymology; inflect; ward; reward; rewarding; in addition;yet(1);yet(2); have yet to; junior(1); junior(2);junior school; praise(1);praise(2); eager; eagerly; punish;while(1); while(2); while(3); while(4); potential(1); potential(2); grin(1);grin(2); tempt;turn sb/sth to/into; salon(1);salon(2); apartment; elegant; elegance; capitalize(1); capitalize(2);capitalize(3); capitalize(4); be in favour of; ferocious;stick(1);stick(2);stick(3); stick to; principle(1);principle(2); principle(3); principle(4); point at;shake(1);shake(2);shake(3); 52-100desire(1);desire(2); pointed(1); pointed(2);couple(1);couple(2); a couple of;intimidate;intimidated;modem;participate(1); participate(2);participate(3);commitment(1);commitment(2);flow(1);flow(2);flow(3);flow(4);minimum(1);minimum(2);assignment(1);assignment(2);assignment(3);complete(1);complete(2);complete(3);complete(4); once in a while;cry out;cry out of;frustration;feel like(1);feel like(2);feel like(3);reply(1);reply(2);reply to;think out;think up;think about;think over;think of(1);think of(2);think aloud;come across(1);come across(2);come across(3);by chance;     阅读全文
Chilly's avatar
Chilly 1月 11, 2015

执行ssh-add时出现Could not open a connection to your authentication agent

执行ssh-add ~/.ssh/rsa 报标题上的错误先执行 eval ssh-agent (是~键...     阅读全文
Chilly's avatar
Chilly 1月 02, 2015

【转】哑变量

    阅读全文
Chilly's avatar
Chilly 12月 10, 2014

R语言之density函数

    阅读全文
Chilly's avatar
Chilly 12月 08, 2014

回归分析

  回归分析是一种统计学上分析数据的方法,目的在于了解两个或多个变量间是否相关、相关方向与强度,并建立数学模型以便观察特定变量来预测研究者感兴趣的变量。步骤:     阅读全文
Chilly's avatar
Chilly 11月 23, 2014

假设检验与p值

  假设检验是推断统计中的一项重要内容。在假设检验中常见到P值( P-Value,Probability,Pr),P值是进行检验决策的另一个依据。P值一种概率,一种在原假设为真的前提下出现观察样本以及更极端情况的概率。  关于假设检验我先举个例子:  假设买彩票中一等奖的概率是万分之一,某人连续买了两次,结果都中了一等奖。对于这件事,我们会有两种猜测:     阅读全文
Chilly's avatar
Chilly 11月 22, 2014

Q-Q图

  Q-Q图: 比较已知样本的分布和猜测分布的图, 猜测的概率分布通常为正态分布。比如猜测样本是正态分布的,则有:假设样本有n个,则用标准正态分布函数获取n个分位值。取法:     阅读全文
Chilly's avatar
Chilly 11月 21, 2014

R语言之本地安装R包

    阅读全文
Chilly's avatar
Chilly 11月 20, 2014