表中边际总计
我有一个数据框,其中包含从不同日期的临床分离株中识别出的许多感染。
到目前为止,我已将数据组织成我想要开始使用的形状。我正在尝试为报告的描述性统计准备一系列表格。
我一直在使用 ftable
并得到以下信息:
onset.types <- ftable(SAB$Onset,SAB$MRSA.Type,year(SAB$Collection.Date))
2005 2006 2007 2008 2009 2010
Community 454 472 512 499 525 512
AUS-2/3-like 28 23 27 29 32 38
EMRSA-15-like 9 4 4 9 8 8
nmMRSA 40 47 53 39 64 60
Other mMRSA 1 3 3 11 5 9
unclassified MRSA 0 2 0 0 1 1
Hospital 163 163 156 164 149 165
AUS-2/3-like 31 33 27 31 29 28
EMRSA-15-like 3 8 5 9 4 3
nmMRSA 10 9 13 17 13 12
Other mMRSA 5 1 6 2 3 10
unclassified MRSA 2 0 1 0 0 0
两个问题:
1:我如何计算边际总计
2:是否有一种简单的方法可以计算百分比以及再次使用边际总计进行计数
我尝试过 epitools我并没有发现它像我希望的那样有用。
非常感谢。
I have a data frame with a number of infections identified from clinical isolates at different dates.
So far I have organised the data into a shape that I want to start working with. I am trying to prepare a series of tables of tables for the descriptive statistics of the report.
I have been using ftable
and get the following:
onset.types <- ftable(SAB$Onset,SAB$MRSA.Type,year(SAB$Collection.Date))
2005 2006 2007 2008 2009 2010
Community 454 472 512 499 525 512
AUS-2/3-like 28 23 27 29 32 38
EMRSA-15-like 9 4 4 9 8 8
nmMRSA 40 47 53 39 64 60
Other mMRSA 1 3 3 11 5 9
unclassified MRSA 0 2 0 0 1 1
Hospital 163 163 156 164 149 165
AUS-2/3-like 31 33 27 31 29 28
EMRSA-15-like 3 8 5 9 4 3
nmMRSA 10 9 13 17 13 12
Other mMRSA 5 1 6 2 3 10
unclassified MRSA 2 0 1 0 0 0
Two questions:
1: How would I calculate marginal totals
2: Is there an easy way to calculate percentages as well as counts again with marginal totals
I have tried epitools and I did not find it as useful as I would have liked.
Many thanks.
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要添加边距,请使用
addmargins()
要计算百分比,请使用
prop.table()
To add margins, use
addmargins()
To calculate percentages, use
prop.table()
它还可以与调查包的
svytable()
配合使用。It also works with survey package's
svytable()
.