[R] Count unchanged class attribute

[John Kane]

Is this a list of data.frames or what?

Please have a look at one or both of these for some ideas of how to ask a question and provide information on the problem.  The better you can describe what you have and what you need the better people can help.
http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example and http://adv-r.had.co.nz/Reproducibility.html


John Kane
Kingston ON Canada


> -----Original Message-----
> From: soe.xiyan at gmail.com
> Sent: Tue, 19 May 2015 23:37:13 +0700
> To: r-help at r-project.org
> Subject: [R] Count unchanged class attribute
> 
> Maybe someone can help me.
> Suppose I have data-set like this:
> 
>   Netto   Bruto  class
> 1 10      1000    yes
> 2 100     20      yes
> 
> 
>   Netto   Bruto  class
> 1 101     1000    yes
> 2 100     210     no
> 
> 
>   Netto   Bruto  class
> 1 10      10      yes
> 2 12      28      yes
> 3 100     20      yes
> 
>   Netto   Bruto  class
> 1 120     200     no
> 2 400     20      yes
> 
> 
>   Netto   Bruto  class
> 1 110     12000   yes
> 2 1100    120     yes
> 3 120     100     yes
> 4 1140    125     yes
> 
> How to calculate the number of classes has changed.
> The expected result is
> - class changed    2
> - class unchanged  3
> 
> 
> Thank you so much.
> Soe Xiyan
> 
> 	[[alternative HTML version deleted]]
> 
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