Merge pull request #1969 from mackler/fix-error-bars

Fix broken error bars in horizontal bar charts.

Author: liquidpele

src/models/multiBarHorizontal.js

@@ -208,13 +208,13 @@ nv.models.multiBarHorizontal = function() {
                         var xerr = getYerr(d,i)
                             , mid = 0.8 * x.rangeBand() / ((stacked ? 1 : data.length) * 2);
                         xerr = xerr.length ? xerr : [-Math.abs(xerr), Math.abs(xerr)];
-                        xerr = xerr.map(function(e) { return y(e) - y(0); });
+                        xerr = xerr.map(function(e) { return y(e + ((getY(d,i) < 0) ? 0 : getY(d,i))) - y(0); });
                         var a = [[xerr[0],-mid], [xerr[0],mid], [xerr[0],0], [xerr[1],0], [xerr[1],-mid], [xerr[1],mid]];
                         return a.map(function (path) { return path.join(',') }).join(' ');
                     })
                     .attr('transform', function(d,i) {
                         var mid = x.rangeBand() / ((stacked ? 1 : data.length) * 2);
-                        return 'translate(' + (getY(d,i) < 0 ? 0 : y(getY(d,i)) - y(0)) + ', ' + mid + ')'
+                        return 'translate(0, ' + mid + ')';
                     });
             }