Improve Quality for QI on Wikpedia Commons

tikz/normal-distribution-cumulative-density-function/Makefile

@@ -4,7 +4,7 @@ DENSITY = 300
 WIDTH = 512
 
 make:
-	pdflatex -shell-escape $(SOURCE).tex -output-format=pdf
+	pdflatex $(SOURCE).tex -output-format=pdf
 	make clean
 
 clean:
@@ -28,4 +28,6 @@ svg:
 	#inkscape $(SOURCE).pdf --export-plain-svg=$(SOURCE).svg
 	pdf2svg $(SOURCE).pdf $(SOURCE).svg
 	# Necessary, as pdf2svg does not always create valid svgs:
-	inkscape $(SOURCE).svg --export-width=$(WIDTH) --export-plain-svg=$(SOURCE).svg
+	inkscape $(SOURCE).svg --export-width=$(WIDTH) --export-plain-svg=$(SOURCE)1.svg
+	rsvg-convert -a -w 720 -f svg $(SOURCE)1.svg -o $(SOURCE).svg
+	rm $(SOURCE)1.svg

tikz/normal-distribution-cumulative-density-function/README.md

@@ -2,6 +2,12 @@ Compiled example
 ----------------
 ![Example](normal-distribution-cumulative-density-function.png)
 
+Requirements
+------------
+
+LaTeX and `gnuplot`
+
+
 Credits
 -------
 

tikz/normal-distribution-cumulative-density-function/normal-distribution-cumulative-density-function.pgf-plot.table

@@ -0,0 +1,205 @@
+
+# Curve 0 of 1, 200 points
+# Curve title: "0.5*(1+(erf((x-0)/(1*sqrt(2)))))"
+# x y type
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+

tikz/normal-distribution-cumulative-density-function/normal-distribution-cumulative-density-function.tex

@@ -20,7 +20,7 @@
         grid style={dashed, gray!30},
         xmin=-5.1,     % start the diagram at this x-coordinate
         xmax= 5.1,    % end   the diagram at this x-coordinate
-        ymin=-0.1,     % start the diagram at this y-coordinate
+        ymin= 0,     % start the diagram at this y-coordinate
         ymax= 1.1,   % end   the diagram at this y-coordinate
         %axis background/.style={fill=white},
         x label style={at={(axis description cs:0.5,0)},anchor=north},