latexchart.clj

;; The following examples require Incanter version 1.2.2-SNAPSHOT or greater.
;; add the following dependency to your project.clj file:
;; [incanter "1.2.2-SNAPSHOT"]

(use '(incanter core stats charts latex))

;; define the latex formatted equation.
;; use the str function so you can break the equation across multiple lines.

(def eq (str "f(x)=\\frac{1}{\\sqrt{2\\pi \\sigma^2}}"
             "e^{\\frac{-(x - \\mu)^2}{2 \\sigma^2}}"))

;; the rendered equation can be viewed or saved as a png file.
(view (latex eq))
(save (latex eq) filename)


;; annotate a chart of the Normal PDF with the its equation in LaTeX

(doto (function-plot pdf-normal -3 3)
        (add-latex 0 0.1 eq)
        view)


;; add a LaTeX subtitle to the chart of the Normal PDF

(doto (function-plot pdf-normal -3 3)
  (add-latex-subtitle eq)
  view)