nodal(boot)
nodal()所属R语言包：boot
Nodal Involvement in Prostate Cancer
在前列腺癌的淋巴结转移
译者：生物统计家园网 机器人LoveR
描述----------Description----------
The nodal data frame has 53 rows and 7 columns.
nodal数据框有53行和第7列。
The treatment strategy for a patient diagnosed with cancer of the prostate depend highly on whether the cancer has spread to the surrounding lymph nodes. It is common to operate on the patient to get samples from the nodes which can then be analysed under a microscope but clearly it would be preferable if an accurate assessment of nodal involvement could be made without surgery.
高度取决于癌症是否已经扩散到周围淋巴结的诊断患有前列腺癌的病人的治疗策略。如果可以无需手术淋巴结转移的准确评估，这是常见的病人，从节点，然后可以在显微镜下分析样品，但显然这将是可取的。
For a sample of 53 prostate cancer patients, a number of possible predictor variables were measured before surgery. The patients then had surgery to determine nodal involvement. It was required to see if nodal involvement could be accurately predicted from the predictor variables and which ones were most important.
可能预测变量的数目为53个前列腺癌患者的样本，在手术前进行测量。患者做了手术，以确定淋巴结受累。它必须看到，如果淋巴结受累，可以准确地预测变量和哪些是最重要的预测。
用法----------Usage----------
nodal
格式----------Format----------
This data frame contains the following columns:
这个数据框包含下列资料：
A column of ones.
的列的。
An indicator of nodal involvement.
淋巴结受累的一个指标。
The patients age dichotomized into less than 60 (0) and 60 or over 1.
患者年龄二成小于60（0）和60岁或以上1。
A measurement of the size and position of the tumour observed by palpitation with the fingers via the rectum. A value of 1 indicates a more serious case of the cancer.
通过直肠用手指心慌观察肿瘤的大小和位置的测量。一个1值表示癌症更严重的情况下。
Another indicator of the seriousness of the cancer, this one is determined by a pathology reading of a biopsy taken by needle before surgery. A value of 1 indicates a more serious case of the cancer.
另一种癌症的严重性的指标，这个人是由病理活检，用针在手术前阅读。一个1值表示癌症更严重的情况下。
A third measure of the seriousness of the cancer taken from an X-ray reading. A value of 1 indicates a more serious case of the cancer.
的第三项措施，从X射线阅读癌症的严重性。一个1值表示癌症更严重的情况下。
The level of acid phosphatase in the blood serum.
血清酸性磷酸酶的水平。
源----------Source----------
The data were obtained from
数据取自
Brown, B.W. (1980) Prediction analysis for binary data. In Biostatistics Casebook. R.G. Miller, B. Efron, B.W. Brown and L.E. Moses (editors), 3–18. John Wiley.
布朗，B.W. （1980年）的二进制数据的预测分析。在生物统计学案例汇编。 R.G.米勒，B埃弗龙，B.W.布朗和L.E.摩西（编辑），3-18。约翰·威利。
参考文献----------References----------
Bootstrap Methods and Their Application. Cambridge University Press.
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注：
注1：为了方便大家学习，本文档为生物统计家园网机器人LoveR翻译而成，仅供个人R语言学习参考使用，生物统计家园保留版权。
注2：由于是机器人自动翻译，难免有不准确之处，使用时仔细对照中、英文内容进行反复理解，可以帮助R语言的学习。
注3：如遇到不准确之处，请在本贴的后面进行回帖，我们会逐渐进行修订。
|
发表于 2012-2-16 20:24:39
