back to x from * marker

tikz/csv-2d-gaussian-multivarate-distributions/csv-2d-gaussian-multivarate-distributions.tex

@@ -58,8 +58,8 @@ scatter,
 only marks,
 point meta=explicit symbolic,
 scatter/classes={
-a={mark=*,red!90!black,fill opacity=0.2},%
-b={mark=*,cyan!50!black,fill opacity=0.2}},
+a={mark=x,red!90!black,fill opacity=0.2},%
+b={mark=x,cyan!50!black,fill opacity=0.2}},
 ]
 table[col sep=comma, meta=label] {data.csv};