How can I avoid evaluation?
right = function(x, val) {print("Right");};
padding = function(x) {print("Padding");};
df = data.frame(x=1:5, y = sample(1:5, 5));
### OK
'%=%' = function(x, val) {
x = substitute(x);
}
right(padding(df)) %=% 1; # but ugly
### Does NOT work
'right<-' = function(x, val) {
print("Already evaluated and also does not use 'val'");
x = substitute(x); # is evaluated before
}
right(padding(df)) = 1
Sincerely,
Leonard
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