I am trying to write this:
Using
$$p_{\Theta | X} = \frac{p_{\Theta}(\theta) p_{X|\Theta}(x\,|\,\theta)}{\sum_{\theta ‘} p_{\Theta}(\theta ‘) p_{X|\Theta}(x\,|\,\theta ‘)}$$
However, what I get is this instead:
The theta prime of the summation does not come out right. Please help.
Must use \limits after \sum
$$p_{\Theta | X} = \frac{p_{\Theta}(\theta) p_{X|\Theta}(x\,|\,\theta)}{\sum\limits_{\theta '} p_{\Theta}(\theta ') p_{X|\Theta}(x\,|\,\theta ')}$$
limit when it is not inside a fraction?
$$p_{\Theta | X} = \frac{p_{\Theta}(\theta) p_{X|\Theta}(x\,|\,\theta)}{\displaystyle\sum_{\theta '} p_{\Theta}(\theta ') p_{X|\Theta}(x\,|\,\theta ')}$$ Use \displaystyle inside the \frac
Commented
Jan 14, 2020 at 3:53
\frac command, which is in the basic command set of LATEX, takes two arguments—numerator and denominator—and typesets them in normal fraction form. The amsmath package provides also \dfrac and \tfrac as convenient abbreviations for {\displaystyle\frac ... } and {\textstyle\frac ... }.
Commented
Jan 14, 2020 at 4:20
\mid instead of |.
Commented
Jan 14, 2020 at 22:18
$$in latex, and it is not a case of wrong or right, the subscript position is quote standard layout in compressed contexts like inline math or fractions.