That is! Match, not merge is the solution.
Ahhh, memory, memory...
Thanks a lot!
mario
On 07-Jun-10 0:09, jim holtman wrote:
try this:
a
V1 V2
1 AAA 1
2 BBB 2
3 CCC 3
u
V1 V2
1 BBB 22
a$V2[match(u$V1, a$V1)]<- u$V2
a
V1 V2
1 AAA 1
2 BBB 22
3 CCC 3
try this:
> a
V1 V2
1 AAA 1
2 BBB 2
3 CCC 3
> u
V1 V2
1 BBB 22
> a$V2[match(u$V1, a$V1)] <- u$V2
> a
V1 V2
1 AAA 1
2 BBB 22
3 CCC 3
>
On Sun, Jun 6, 2010 at 12:41 PM, Mario Valle wrote:
> Good morning!
> I have two datasets with the same structure, one containing all my values
> a
Good morning!
I have two datasets with the same structure, one containing all my
values and the second one that update same of these values (see example
below).
I want to create a data.frame with all the values of the first dataset
except when an entry is present in the second dataset, in which
3 matches
Mail list logo
