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重“郑知”音
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夜猫子笔记
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Tableone的参数说明
Init signature: TableOne( data: pandas.core.frame.DataFrame, columns: Optional[list] = Non…
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每日一题_2023.05.28
A 30-year-old man is involved in a motorcycle accident and is pronounced dead on arrival a…
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每日一题_2023.05.27
A 36-year-old woman with a history of leukemia receives a bone marrow transplant. Two and …
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R的可视化威力——常见格式图形输出总结
在R中，图形绘制完成后，还需要做最后一步，就是将绘制好的图形保存为需要的文件格式。对于少量图形而言，可以使用RStudio的图片保存功能([ Plots ]子菜单)实现图形保存。但…
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每日一题_2023.05.26
A 50-year-old man with a history of mitral-valve prolapse and of Hodgkin’s lymphoma 20 yea…
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每日一题_2023.05.25
A 17-year-old boy visits his physician with complaints of recurrent bouts of dizziness, pa…
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每日一题_2023.05.24
A 5-year-old girl is brought to her pediatrician because her mother says she is frequently…
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R绘图模板——柱状图+散点图+折线图+显著性！
1、加载R包： 2、加载绘图数据并进行数据处理： 3、绘图：
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每日一题_2023.05.23
A metabolic process is pictured below. Which intermediate in this process inhibits the rat…
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R语言:逆概率处理加权IPTW
逆概率处理加权（Inverse Probability of Treatment Weighting, IPTW） 或逆处理概率加权（Inverse Probability of …
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每日一题_2023.05.22
A physician is asked to evaluate a 5-year-old girl who has developed a mass in her neck. D…
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每日一题_2023.05.21
A scientist creates a model of fetal circulation in order to study blood flow during this …
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每日一题_2023.05.20
A 24-year-old man presents to the emergency department with hypertension, tachycardia, fev…
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每日一题_2023.05.19
A 3-year-old boy is brought to his pediatrician’s office because his parents noticed worse…
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python：t检验
1、导入包及数据 2、单样本t检验 3、检查是否正态分布 或者使用s-w检验正态分布 4、方差齐性检验 5、通过unstack调整数据格式并重置索引 6、画图 7、配对t检验
