//>>built
define("dojox/math/stats",["dojo","../main"],function(_1,_2){_1.getObject("math.stats",true,_2);var st=_2.math.stats;_1.mixin(st,{sd:function(a){return Math.sqrt(st.variance(a));},variance:function(a){var _3=0,_4=0;_1.forEach(a,function(_5){_3+=_5;_4+=Math.pow(_5,2);});return (_4/a.length)-Math.pow(_3/a.length,2);},bestFit:function(a,_6,_7){_6=_6||"x",_7=_7||"y";if(a[0]!==undefined&&typeof (a[0])=="number"){a=_1.map(a,function(_8,_9){return {x:_9,y:_8};});}var sx=0,sy=0,_a=0,_b=0,_c=0,_d=0,_e=0,n=a.length,t;for(var i=0;i<n;i++){sx+=a[i][_6];sy+=a[i][_7];_a+=Math.pow(a[i][_6],2);_b+=Math.pow(a[i][_7],2);_c+=a[i][_6]*a[i][_7];}for(i=0;i<n;i++){t=a[i][_6]-sx/n;_d+=t*t;_e+=t*a[i][_7];}var _f=_e/(_d||1);var d=Math.sqrt((_a-Math.pow(sx,2)/n)*(_b-Math.pow(sy,2)/n));if(d===0){throw new Error("dojox.math.stats.bestFit: the denominator for Pearson's R is 0.");}var r=(_c-(sx*sy/n))/d;var r2=Math.pow(r,2);if(_f<0){r=-r;}return {slope:_f,intercept:(sy-sx*_f)/(n||1),r:r,r2:r2};},forecast:function(a,x,_10,_11){var fit=st.bestFit(a,_10,_11);return (fit.slope*x)+fit.intercept;},mean:function(a){var t=0;_1.forEach(a,function(v){t+=v;});return t/Math.max(a.length,1);},min:function(a){return Math.min.apply(null,a);},max:function(a){return Math.max.apply(null,a);},median:function(a){var t=a.slice(0).sort(function(a,b){return a-b;});return (t[Math.floor(a.length/2)]+t[Math.ceil(a.length/2)])/2;},mode:function(a){var o={},r=0,m=Number.MIN_VALUE;_1.forEach(a,function(v){(o[v]!==undefined)?o[v]++:o[v]=1;});for(var p in o){if(m<o[p]){m=o[p],r=p;}}return r;},sum:function(a){var sum=0;_1.forEach(a,function(n){sum+=n;});return sum;},approxLin:function(a,pos){var p=pos*(a.length-1),t=Math.ceil(p),f=t-1;if(f<0){return a[0];}if(t>=a.length){return a[a.length-1];}return a[f]*(t-p)+a[t]*(p-f);},summary:function(a,_12){if(!_12){a=a.slice(0);a.sort(function(a,b){return a-b;});}var l=st.approxLin,_13={min:a[0],p25:l(a,0.25),med:l(a,0.5),p75:l(a,0.75),max:a[a.length-1],p10:l(a,0.1),p90:l(a,0.9)};return _13;}});return _2.math.stats;});