Displaying 2 results from an estimated 2 matches for "aggregationfunction".
2009 May 04
1
help_if command_new column
Hi everyone,
Do you know how to apply a If command to a vector in a data.frame, creating
a new column?
Example: If one species has "1" value in the Abundance column then it is
"Solitary". If the abundance is higher than 1, is "School".
I did:
aggregationFunction <-function(x){
(if (x>1) a<- 'School'
else a<- 'Solitary')
return (a)
}
Then:
Aggregation <- lapply (df$Number, aggregationFunction )
Then:
df <- data.frame (df, Aggregation)
And I got this error:
Error in data...
2009 May 05
1
self organizing map advice for categorical data
...tent-Type: text/plain
Hi everyone,
Do you know how to apply a If command to a vector in a data.frame, creating
a new column?
Example: If one species has "1" value in the Abundance column then it is
"Solitary". If the abundance is higher than 1, is "School".
I did:
aggregationFunction <-function(x){
(if (x>1) a<- 'School'
else a<- 'Solitary')
return (a)
}
Then:
Aggregation <- lapply (df$Number, aggregationFunction )
Then:
df <- data.frame (df, Aggregation)
And I got this error:
Error in data...