Is there a way, given a set of values (x,f(x)), to find the polynomial of a given degree that best fits the data?
lm(y ~ x + I(x^2) + I(x^3))
This will give you third order polynomial X(X^3)
All you have to do is run ...READ MORE
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Well it truly depends on your requirement,
If ...READ MORE
You can use the removesparseterm function.
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ID <- c("A123","A123","A123","A123","B456","B456","B456")
item <- c("bread", "butter", "milk", ...READ MORE
Hey @Ali, its very simple one line ...READ MORE
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