javascript - Flot chart rendering unexpectedly -


i'm trying display flot chart 3 arrays. make things simple arrays same:

[[1,1],[2,3],[3,6],[4,10],[5,15],[6,21]]

i create arrays following ruby code:

def flot_chart_series   total=0   foo=[]   (1..6).each |number|     foo.push [number, total+=number]   end   foo end

here erb processed javascript code:

var fb_shares = <%= flot_chart_series %>; var twitter_shares = <%= flot_chart_series %>; var email_shares = <%= flot_chart_series %>;  var plot = $.plot($("#statschart"),   [ { data: fb_shares, label: "facebook shares"},   { data: twitter_shares, label: "twitter shares" },   { data: email_shares, label: "email shares" }], {     series: {       lines: { show: true,         linewidth: 1,         fill: true,          fillcolor: { colors: [ { opacity: 0.1 }, { opacity: 0.13 }, { opacity: 0.15 } ] }       },       points: { show: true,          linewidth: 2,         radius: 3       },       shadowsize: 0,       stack: true     },     grid: { hoverable: true,        clickable: true,        tickcolor: "#f9f9f9",       borderwidth: 0     },     legend: { // show: false labelboxbordercolor: "#fff" },   colors: ["#3071eb", "#30a0eb", "#a7b5c5"], xaxis: {   ticks: [[1, "jan"], [2, "feb"], [3, "mar"], [4,"apr"], [5,"may"], [6,"jun"],    [7,"jul"], [8,"aug"], [9,"sep"], [10,"oct"], [11,"nov"], [12,"dec"]],   font: {     size: 12,     family: "open sans, arial",     variant: "small-caps",     color: "#697695"   } }, yaxis: {   ticks:3,    tickdecimals: 0,   font: {size:12, color: "#9da3a9"} } });

the problem chart doesnt plot 3 of same lines, creates lines increasing in value. here screen shot of graph: flot chart screen shot

any ideas i'm doing wrong?

as @captain hints @ in comment because using stacking plugin stack: true. going stack 3 identical lines on top of each other.

compare these fiddles: stack true , stack false.

if don't want stack rid of plugin (less javascript == faster loading) , stack: true option.


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