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SIR传染病模型
说明： 进行了常微分方程的建立，并模拟出经典的SIR模型曲线(The ordinary differential equation is established and the classical SIR model curve is simulated)
- 2020-04-10 11:02:43下载
- 积分：1
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midasr_0.6.tar
混频回归模型的r语言包，里边包括例题啥的。(The package of midas (mixed frequecncy), which includes the concrete code of some examples.)
- 2020-07-15 10:29:12下载
- 积分：1
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did
双重差分估计
双重差分模型（difference-in-difference，DID）近年来多用于计量经济学中对于公共政策或项目实施效果 的定量评估。
通常大范围的公共政策有别于普通科研性研究，难以保证对于政策实施组和对照组在样本分配上的完全随机。非随机分配政策实施组和对照组的试验称为自然试验（naturaltrial），此类试验存在较显著的特点，即不同组间样本在政策实施前可能存在事前差异，仅通过单一前后对比或横向对比的分析方法会忽略这种差异，继而导致对政策实施效果的有偏估计。(Quantitative evaluation of policy or project implementation effect. Generally, a wide range of public policies is different from general scientific research, and it is difficult to ensure that the sample allocation for the policy implementation group and the control group is completely random. The non-randomly assigned policy implementation group and the control group are called natural trials, which have significant characteristics, i.e. there may be prior differences between the different groups of samples before the implementation of the policy, and this difference will be ignored only through a single pre-and post-comparison or horizontal comparison analysis method, which leads to the policy. Biased estimation of implementation)
- 2020-07-03 20:00:01下载
- 积分：1
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cmd
说明： 制作pcoa、饼图、venn图、热图、柱状图的脚本，可直接改参数使用，内有注释，适用于微生物多样性(the Script to make PCOA)
- 2020-06-20 01:40:01下载
- 积分：1
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小提琴图 (1)
说明： The source code of data analysis using R language does not contain data sets. If you need to contact us
- 2019-02-23 14:46:45下载
- 积分：1
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r语言批量读取xyz格式文件
水动力模型MIKE21数据后处理
dfsu格式文件导出模拟结果xyz格式文件
R语言可以迅速批量读取xyz文件，并根据文件名排序
以便于后期处理(MIKE 21
export results from dsfu
R read numerous xyz files)
- 2021-04-15 14:28:54下载
- 积分：1
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R_codes
说明： 该文档中包含大量代码，首先是一些R语言基本语法练习的，然后是一些机器学习相关的，最后是一些评分卡指标计算、建模相关的。(This document contains a lot of code, first some basic grammar exercises of R language, then some machine learning related, and finally some scorecard index calculation, modeling related.)
- 2019-02-13 14:25:46下载
- 积分：1
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时间序列分析及应用：R语言，潘红宇
《时间序列分析及应用：R语言，潘红宇》书籍分享(Time Series Analysis and Application: R Language, Pan Hongyu)
- 2019-02-16 21:50:38下载
- 积分：1
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选择最近气象站
从plots文件中读取目标站点信息 从station文件读取气象站点信息 自动匹配距离目标站点最近的气象站名称(Automatically match the closest meteorogical station of subject plot.)
- 2019-04-18 10:59:48下载
- 积分：1
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数据挖掘 R语言实战
说明： 通过本书，读者不仅能掌握使用R及相关算法包来快速解决实际问题的方法，而且能从实际问题分析入手，到利用R进行求解，以及对挖掘结果进行分析的全面训练(Through this book, readers can not only master the method of using R and relevant algorithm packages to quickly solve practical problems, but also start from the analysis of practical problems to the comprehensive training of using R to solve problems and analyzing mining results)
- 2020-06-25 16:20:01下载
- 积分：1
