Deal with case of a single point in trichart, dotchart, add_points, a…

…nd add_curves

 - Fixes Issue kbroman/qtlcharts#76

d3panels.js

@@ -1,6 +1,6 @@
 !function() { // encapsulate d3panels functions
     var d3panels = {
-        version: "1.6.4"
+        version: "1.7.1"
     };
 "use strict";
 
@@ -3472,6 +3472,8 @@ d3panels.dotchart = function (chartOpts) {
 
       return results;
     }();
+    group = d3panels.expand2vector(group, x.length); // force it to be a vector not scalar
+
     ngroup = d3.max(group);
 
     group = function () {
@@ -4585,6 +4587,8 @@ d3panels.add_curves = function (chartOpts) {
 
       return results;
     }();
+    group = d3panels.expand2vector(group, n_ind); // force it to be a vector not scalar
+
     ngroup = d3.max(group);
 
     group = function () {
@@ -4781,6 +4785,8 @@ d3panels.add_points = function (chartOpts) {
 
       return results;
     }();
+    group = d3panels.expand2vector(group, x.length); // force it to be a vector not scalar
+
     ngroup = d3.max(group);
 
     group = function () {
@@ -6086,6 +6092,8 @@ d3panels.trichart = function (chartOpts) {
 
       return results;
     }();
+    group = d3panels.expand2vector(group, n); // force it to be a vector not scalar
+
     ngroup = d3.max(group);
 
     group = function () {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "d3panels",
-  "version": "1.6.4",
+  "version": "1.7.1",
   "description": "D3-based graphics panels",
   "author": "Karl Broman <[email protected]> (https://kbroman.org)",
   "repository": "github:kbroman/d3panels",

src/add_curves.coffee

@@ -39,6 +39,7 @@ d3panels.add_curves = (chartOpts) ->
             d3panels.displayError("add_curves: data.indID.length (#{indID.length}) != data.y.length (#{n_ind})")
 
         group = data?.group ? (1 for i of y)
+        group = d3panels.expand2vector(group, n_ind)  # force it to be a vector not scalar
         ngroup = d3.max(group)
         group = ((if g? then g-1 else g) for g in group) # changed from (1,2,3,...) to (0,1,2,...)
         if d3panels.sumArray(g < 0 or g > ngroup-1 for g in group) > 0

src/add_points.coffee

@@ -36,6 +36,7 @@ d3panels.add_points = (chartOpts) ->
 
         # groups of colors
         group = data?.group ? (1 for i in x)
+        group = d3panels.expand2vector(group, x.length)  # force it to be a vector not scalar
         ngroup = d3.max(group)
         group = ((if g? then g-1 else g) for g in group) # changed from (1,2,3,...) to (0,1,2,...)
         if d3panels.sumArray(g < 0 or g > ngroup-1 for g in group) > 0

src/d3panels_top.js

@@ -1,4 +1,4 @@
 !function() { // encapsulate d3panels functions
     var d3panels = {
-        version: "1.6.4"
+        version: "1.7.1"
     };

src/dotchart.coffee

@@ -60,6 +60,7 @@ d3panels.dotchart = (chartOpts) ->
 
         # groups of colors
         group = data?.group ? (1 for i in x)
+        group = d3panels.expand2vector(group, x.length)  # force it to be a vector not scalar
         ngroup = d3.max(group)
         group = ((if g? then g-1 else g) for g in group) # changed from (1,2,3,...) to (0,1,2,...)
         if d3panels.sumArray(g < 0 or g > ngroup-1 for g in group) > 0

src/trichart.coffee

@@ -68,6 +68,7 @@ d3panels.trichart = (chartOpts) ->
 
         # groups of colors
         group = data?.group ? (1 for i of p)
+        group = d3panels.expand2vector(group, n)  # force it to be a vector not scalar
         ngroup = d3.max(group)
         group = ((if g? then g-1 else g) for g in group) # changed from (1,2,3,...) to (0,1,2,...)
         if d3panels.sumArray(g < 0 or g > ngroup-1 for g in group) > 0