[R] How to merge two tables

[Jeff Newmiller]

I can see no coherent way to merge these two tables. They do not appear to 
have consistent definitions for uniqueness of individual rows. Nor do they 
have consistent column definitions. If you think they do, you will need to 
be more clear in your question about how you want them to be merged.

As for expanding, you might try using something like

ageExpand <- age[ rep( seq_along( age[[1]] ), times=age[,"count"] ), 1:3 ]

On Tue, 23 Feb 2016, Xiyan Lon wrote:

> Dear all,
> I am currently studying categorical data analysis, if I have two tables:
>
> R> cross
>      sex cross death count
> 1  FEMALE   WEF   YES    26
> 2    MALE   WEF   YES    14
> 3  FEMALE   OGG   YES    32
> 4    MALE   OGG   YES    43
> 5  FEMALE   TGA   YES     8
> 6    MALE   TGA   YES    10
> 7  FEMALE   WEF    NO     6
> 8    MALE   WEF    NO     7
> 9  FEMALE   OGG    NO    26
> 10   MALE   OGG    NO    12
> 11 FEMALE   TGA    NO    16
> 12   MALE   TGA    NO    26
>
> R> age
>     sex age death count
> 1 FEMALE 17Y   YES    16
> 2   MALE 17Y   YES     4
> 3 FEMALE 18Y   YES    40
> 4   MALE 18Y   YES    51
> 5 FEMALE 17Y    NO    32
> 6   MALE 17Y    NO    42
> 7 FEMALE 18Y    NO    26
> 8   MALE 18Y    NO    15
>
> - How to merge two tables.
> - How to expand both tables such as:
>
> sex age cross death
> FEMALE 17Y WEF YES
> ...
> FEMALE 18Y TGA NO
>
>
> Warm regards,
> Xiyan Lon
>
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