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- 大量2010年统计年鉴及行业研究报告下载
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牧童 2010-12-12 17:53
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大量2010年统计年鉴及行业研究报告下载 1、中国统计年鉴2010 （光盘版） http://bbs.cebbs.org/thread-2052-1-1.html 2、中国统计摘要2010 http://bbs.cebbs.org/thread-581-1-2.html 3、福建统计年鉴2010（Excel版） http://bbs.cebbs.org/thread-1012-1-2.html 4、山东统计年鉴 ...
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个人分类: 基础科学|516 次阅读|0 个评论
热度 359
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- Logistic模型图解
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牧童 2010-11-23 00:57
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Logistic模型图解 Logistic 模型还可写为如下形式 & ...
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个人分类: 基础科学|151 次阅读|0 个评论
热度 21
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- 20种氨基酸分类，缩写及记忆口诀
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牧童 2010-11-22 20:57
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20种氨基酸缩写及记忆口诀 体内20种氨基酸按理化性质可分为4组： ①非极性、疏水性氨基酸：甘氨酸、丙氨酸、缬氨酸、亮氨酸、异亮氨酸、苯丙氨酸和脯氨酸。 ②极性、中性氨基酸：色氨酸、丝氨酸、酪氨酸、半胱氨酸 ...
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个人分类: 基础科学|4056 次阅读|0 个评论
热度 88
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- 我国首例抗超急性免疫排斥基因猪培育成功
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牧童 2010-11-16 03:28
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日前，我院畜牧所潘登科副研究员领导的科研团队成功培育出我国首例敲除超急性免疫排斥基因的异种器官移植猪，使我国成为除美国、日本和澳大利亚等少数几个获得此项技术的国家，为培育器官移植猪迈出了关键的一步。 供体器官严重不足制约着器官移植的广泛应用，大量器官衰竭患者因 ...
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个人分类: 基础科学|293 次阅读|0 个评论
热度 23
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- Confusing Statistical Term #4: Hierarchical Regression vs. Hierarchical Model
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牧童 2010-11-15 23:39
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Confusing Statistical Term #4: Hierarchical Regression vs. Hierarchical Model This one is relatively simple. Very similar names for two totally different concepts. Hierarchical Models (aka Hierarchical Linear Models or HLM) are a type of linear regression models in which the o ...
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个人分类: 基础科学|179 次阅读|0 个评论
热度 21
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- Confusing Statistical Terms #3: Levels
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牧童 2010-11-15 23:38
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Confusing Statistical Terms #3: Levels of a Factor in Multilevel Models Measured at a Nominal Level It struck me today in answering a question that statisticians have not been very helpful to those trying to learn statistics in the way they name statistical terms. I can think of other e ...
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个人分类: 基础科学|173 次阅读|0 个评论
热度 15
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- Confusing Statistical Terms #2: Alpha and Beta
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牧童 2010-11-15 23:37
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Confusing Statistical Terms #2: Alpha and Beta Oh so many years ago I had my first insight into just how ridiculously confusing all the statistical terminology can be for novices. I was TAing a two-semester applied statistics class for graduate students in biology. It started with ...
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个人分类: 基础科学|154 次阅读|0 个评论
热度 11
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- Confusing Statistical Terms #1: The Many Names of Independent Variables
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牧童 2010-11-15 23:36
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Confusing Statistical Terms #1: The Many Names of Independent Variables Statistical models, such as general linear models (linear regression, ANOVA, mixed models) and generalized linear models (logistic, Poisson, proportional hazard regression, etc.) all have the same general form. O ...
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个人分类: 基础科学|110 次阅读|0 个评论
热度 15
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- Confusing Statistical Terms #5: Covariate
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牧童 2010-11-15 23:35
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Confusing Statistical Terms #5: Covariate Covariate is a tricky term in a different way than hierarchical or beta , which have completely different meanings in different contexts. Covariate really has only one meaning, but it gets tricky because the meaning has different implication ...
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个人分类: 基础科学|258 次阅读|0 个评论
热度 26
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- Silly old chi-square!
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牧童 2010-11-9 11:26
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By Andrew Gelman on November 8, 2010 9:59 AM | No Comments Brian Mulford writes: I ran across this blog post and found myself questioning the relevance of the test used. I'd think Chi-Square would be inappropriate for trying to measure significance of cho ...
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个人分类: 基础科学|260 次阅读|0 个评论
热度 19
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