Dear R users,
I remember seeing somewhere a method of visualizing a set of
observations on two variables x and y in the following way
x=0 x=1
|-------| |-------|
y=-1 | | | |
|-------| | |
| |
|-------| | |
| | |-------|
y=0 | |
| | |-------|
|-------| | |
|-------|
|-------|
y=1 | | |-------|
|-------| |-------|
where x = 0 or 1; y = -1, 0, 1. The 'tile' area represents
the count of observations with corresponding x and y values.
Now, I don't remember what is the name of the functions that
support such plots.
I tried help.search("*tile*"); I skimmed the documentation of
the 'lattice' package. Both seem not to be what I remembered.
Please send me pointers.
Thanks in advance
Itay
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