desc.comp

Generate a comprehensive descriptive table with intergroup comparison.

Data cleaning including 1) generating datasets for time-series and case-crossover analyses based on raw hospital records, 2) linking individuals to an areal map, 3) picking out cases living within a buffer of certain size surrounding a site, etc. For more information, please refer to Zhang W,etc. (2018) <doi:10.1016/j.envpol.2018.08.030>.

Wangjian Zhang

rSPARCS

Sites, Population, and Records Cleaning Skills

Zhicheng Du

Xinlei Deng

Ziqiang Lin

Bo Ye

Jijin Yao

Yanan Jin

Wayne Lawrence

desc.comp function

<dl> <dt>data</dt>
<dd>a data.frame containing the variables to be described and a group variable</dd> <dt>variables</dt>
<dd>a numeric variable indicating the columns of variables to be described.</dd> <dt>by</dt>
<dd>a number indicating the column of the group variable</dd> <dt>margin</dt>
<dd>calculate the proportion for categorical variables by 1 (row) or 2 (column).</dd> <dt>avg.num</dt>
<dd>"mean", describe continuous variables with mean and standard deviation; "median", describe continuous variables with median and interquantile range; otherwise, normal distribution test will be conducted, for normal distributed variables, "mean" will be used, otherwise, "median" will be used.</dd> <dt>test.num</dt>
<dd>"metric", t test or anova will be used for intergroup comparison; "nonmetric", Wilcoxon rank sum test or Kruskal-Wallis test will be used; otherwise, normal distribution test will be conducted, for normal distributed variables, "metric" will be used, otherwise, "nonmetric" will be used.</dd></dl>

Arguments

Generate a Descriptive Table — desc.comp

<dl>

 <dt>data</dt>
<dd>a data.frame containing the variables to be described and a group variable</dd>

 <dt>variables</dt>
<dd>a numeric variable indicating the columns of variables to be described.</dd>

 <dt>by</dt>
<dd>a number indicating the column of the group variable</dd>

 <dt>margin</dt>
<dd>calculate the proportion for categorical variables by 1 (row) or 2 (column).</dd>

 <dt>avg.num</dt>
<dd>"mean", describe continuous variables with mean and standard deviation; "median", describe continuous variables with median and interquantile range; otherwise, normal distribution test will be conducted, for normal distributed variables, "mean" will be used, otherwise, "median" will be used.</dd>

 <dt>test.num</dt>
<dd>"metric", t test or anova will be used for intergroup comparison; "nonmetric", Wilcoxon rank sum test or Kruskal-Wallis test will be used; otherwise, normal distribution test will be conducted, for normal distributed variables, "metric" will be used, otherwise, "nonmetric" will be used.</dd>

</dl>

desc.comp: Generate a Descriptive Table

Description

Usage

Value

Arguments

Details

Examples