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Bookmark or Share- when to use factor () when plotting with ggplot in R?Is the general rule to use factor when the variable being used to determine the shape/size/colour is discrete, and not continuous? Or is there another use of factor in this context? It seems like the first command can be made like the second with the right legend, even without factor . thanks.
- polynomials - Factorise $x^n + 1$ - Mathematics Stack ExchangeWrite $$ x^n+1 = \frac{x^{2n}-1}{x^n-1} $$ The factorization over $\mathbb Q$ of the polynomials in the fraction are given by cyclotomic polynomials. Share Cite
- factoring - Notation: is a factor of - Mathematics Stack ExchangeStack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
- r - Why use as.factor() instead of just factor() - Stack Overflow‘factor(x, exclude = NULL)’ applied to a factor without ‘NA’s is a no-operation unless there are unused levels: in that case, a factor with the reduced level set is returned. ‘as.factor’ coerces its argument to a factor.
- r - How to convert a factor to integer\numeric without loss of ...But annoyingly, there is nothing to handle the factor -> numeric conversion. As an extension of Joshua Ulrich's answer, I would suggest to overcome this omission with the definition of your own idiomatic function: as.double.factor
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