[R] How to sort frequency distribution table?

[John Kane]

Here is a quick start.  You will have to either greatly reduce the length of the names or play around with various plot or barplot options to get the x labels.  

Have a look at ?plot.default and ?barplot for more information

John Kane
Kingston ON Canada
================================================
aa  <- c("Acute lymphoblastic leukemia (childhood)",
"Adiponectin levels",
"Adiponectin levels",
"Adiponectin levels",
"Adiponectin levels",
"Adiponectin levels",
"Adiposity",
"Adiposity",
"Adiposity",
"Adiposity",
"Age-related macular degeneration",
"Age-related macular degeneration",
"Aging (time to death)",
"Aging (time to event)",
"Aging (time to event)",
"Aging (time to event)",
"Aging (time to event)",
"AIDS",
"AIDS",
"AIDS")

(xx  <- table(aa))
 barplot(xx)
 =================================================


> -----Original Message-----
> From: mandecent.gupta at gmail.com
> Sent: Wed, 7 Mar 2012 20:46:18 -0800 (PST)
> To: r-help at r-project.org
> Subject: [R] How to sort frequency distribution table?
> 
> Hi,
> 
> I am working on categorical data with column as disease name(categaory).
> 
> My input data is
>  [1] Acute lymphoblastic leukemia (childhood)
>  [2] Adiponectin levels
>  [3] Adiponectin levels
>  [4] Adiponectin levels
>  [5] Adiponectin levels
>  [6] Adiponectin levels
>  [7] Adiposity
>  [8] Adiposity
>  [9] Adiposity
> [10] Adiposity
> [11] Age-related macular degeneration
> [12] Age-related macular degeneration
> [13] Aging (time to death)
> [14] Aging (time to event)
> [15] Aging (time to event)
> [16] Aging (time to event)
> [17] Aging (time to event)
> [18] AIDS
> [19] AIDS
> [20] AIDS
> .....
> 
> 
> when i use table command, i get
> 
> 
> [,1]
> Acute lymphoblastic leukemia (childhood)                             1
> Adiponectin levels
> 5
> Adiposity
> 4
> Age-related macular degeneration
> 2
> Aging (time to death)
> 1
> ......
> 
> But i need to sort this table by frequency and need to plot a histogram
> with
> lable first column (e.g. Adiposity , Age-related macular degeneration  as
> bar name). How can i do it?
> 
> Regards
> 
> --
> View this message in context:
> http://r.789695.n4.nabble.com/How-to-sort-frequency-distribution-table-tp4455595p4455595.html
> Sent from the R help mailing list archive at Nabble.com.
> 
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