Checking in a solution to making it possible to use

chart.options({}).  Instead of chaining properties,
you can pass chart properties in a hash.
Adding a optionsFunc template to utils.js, so it can reused in all chart
code.

examples/lineChart.html

@@ -56,12 +56,17 @@ svg {
 var chart;
 
 nv.addGraph(function() {
-  chart = nv.models.lineChart();
-  chart
-    .margin({left: 100, bottom: 100})
-    .x(function(d,i) { return i })
-    .transitionDuration(300)
-    ;
+  chart = nv.models.lineChart()
+  .options({
+    margin: {left: 100, bottom: 100},
+    x: function(d,i) { return i},
+    showXAxis: true,
+    showYAxis: true,
+    transitionDuration: 250
+  })
+  ;
+
+  chart.showXAxis(false);
 
   // chart sub-models (ie. xAxis, yAxis, etc) when accessed directly, return themselves, not the parent chart, so need to chain separately
   chart.xAxis
@@ -72,8 +77,6 @@ nv.addGraph(function() {
     .axisLabel('Voltage (v)')
     .tickFormat(d3.format(',.2f'));
 
-  chart.showXAxis(true);
-
   d3.select('#chart1 svg')
     .datum(sinAndCos())
     .call(chart);

src/models/lineChart.js

@@ -348,6 +348,8 @@ nv.models.lineChart = function() {
   d3.rebind(chart, lines, 'defined', 'isArea', 'x', 'y', 'size', 'xScale', 'yScale', 'xDomain', 'yDomain', 'xRange', 'yRange'
     , 'forceX', 'forceY', 'interactive', 'clipEdge', 'clipVoronoi', 'useVoronoi','id', 'interpolate');
 
+  chart.options = nv.utils.optionsFunc.bind(chart);
+
   chart.margin = function(_) {
     if (!arguments.length) return margin;
     margin.top    = typeof _.top    != 'undefined' ? _.top    : margin.top;

src/utils.js

@@ -128,3 +128,25 @@ nv.utils.NaNtoZero = function(n) {
 
     return n;
 };
+
+/*
+Snippet of code you can insert into each nv.models.* to give you the ability to
+do things like:
+chart.options({
+  showXAxis: true,
+  tooltips: true
+});
+
+To enable in the chart:
+chart.options = nv.utils.optionsFunc.bind(chart);
+*/
+nv.utils.optionsFunc = function(args) {
+    if (args) {
+      d3.map(args).forEach((function(key,value) {
+        if (typeof this[key] === "function") {
+           this[key](value);
+        }
+      }).bind(this));
+    }
+    return this;
+};