JavaScriptCollection
diff --git a/‎d3.js‎
Lines changed: 1 addition & 1 deletion b/‎d3.js‎
Lines changed: 1 addition & 1 deletion
@@ -512,7 +512,7 @@ var d3_format_types = {
   e: function(x, p) { return x.toExponential(p); },
   f: function(x, p) { return x.toFixed(p); },
   r: function(x, p) {
-    var n = 1 + Math.floor(1e-15 + Math.log(x) / Math.LN10);
+    var n = x ? 1 + Math.floor(1e-15 + Math.log(x) / Math.LN10) : 1;
     return d3.round(x, p - n).toFixed(Math.max(0, Math.min(20, p - n)));
   }
 };
Original file line number	Diff line number	Diff line change
`@@ -512,7 +512,7 @@ var d3_format_types = {`
`512`	`512`	`e: function(x, p) { return x.toExponential(p); },`
`513`	`513`	`f: function(x, p) { return x.toFixed(p); },`
`514`	`514`	`r: function(x, p) {`
`515`		`- var n = 1 + Math.floor(1e-15 + Math.log(x) / Math.LN10);`
	`515`	`+ var n = x ? 1 + Math.floor(1e-15 + Math.log(x) / Math.LN10) : 1;`
`516`	`516`	`return d3.round(x, p - n).toFixed(Math.max(0, Math.min(20, p - n)));`
`517`	`517`	`}`
`518`	`518`	`};`