leuk.html

来自「本程序是基于linux系统下c++代码」· HTML 代码 · 共 90 行

HTML

90 行

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><title>R: Survival Times and White Blood Counts for Leukaemia Patients</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="stylesheet" type="text/css" href="../../R.css">
</head><body>

<table width="100%" summary="page for leuk {MASS}"><tr><td>leuk {MASS}</td><td align="right">R Documentation</td></tr></table>
<h2>Survival Times and White Blood Counts for Leukaemia Patients</h2>


<h3>Description</h3>

<p>
A data frame of data from 33 leukaemia patients.
</p>


<h3>Usage</h3>

<pre>
leuk
</pre>


<h3>Format</h3>

<p>
A data frame with columns:
<dl>
<dt><code>wbc</code></dt><dd>white blood count
</dd>
<dt><code>ag</code></dt><dd>a test result, <code>"present"</code> or <code>"absent"</code>
</dd>
<dt><code>time</code></dt><dd>survival time in weeks
</dd></dl>

<h3>Details</h3>

<p>
Survival times are given for 33 patients who died from acute
myelogenous leukaemia.  Also measured was the patient's white blood cell
count at the time of diagnosis.  The patients were also factored into 2
groups according to the presence or absence of a morphologic
characteristic of white blood cells. Patients termed AG positive were
identified by the presence of Auer rods and/or significant granulation
of the leukaemic cells in the bone marrow at the time of diagnosis.
</p>


<h3>Source</h3>

<p>
Cox, D. R. and Oakes, D. (1984) <EM>Analysis of Survival Data</EM>.
Chapman &amp; Hall, p. 9.
</p>
<p>
Taken from
</p>
<p>
Feigl, P. &amp; Zelen, M. (1965) Estimation of exponential survival
probabilities with concomitant information.
<EM>Biometrics</EM> <B>21</B>, 826&ndash;838.
</p>


<h3>References</h3>

<p>
Venables, W. N. and Ripley, B. D. (2002)
<EM>Modern Applied Statistics with S.</EM> Fourth edition.  Springer.
</p>


<h3>Examples</h3>

<pre>
library(survival)
plot(survfit(Surv(time) ~ ag, data = leuk), lty = 2:3, col = 2:3)

# now Cox models
leuk.cox &lt;- coxph(Surv(time) ~ ag + log(wbc), leuk)
summary(leuk.cox)
</pre>



<hr><div align="center">[Package <em>MASS</em> version 7.2-44 <a href="00Index.html">Index]</a></div>

</body></html>

leuk.html - 源码说明

本页面展示了「本程序是基于linux系统下c++代码」中的 leuk.html 源码文件，采用 HTML 编程语言编写，共 90 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

虫虫开发者社区收录了大量与Linux相关的技术资源，包括源代码、技术文档、电路图等，是电子工程师和嵌入式开发者的专业学习平台。

⌨️ 快捷键说明

复制代码Ctrl + C

搜索代码Ctrl + F

全屏模式F11

增大字号Ctrl + =

减小字号Ctrl + -

显示快捷键?