quartis.js

values = [82.1467068058,38.4966734016,32.0008188793,96.9622650244,86.8058759993,79.3362306586,58.0055852798,75.8220414787,67.0149545567,36.4044706595,85.3345320643,20.6287894419,81.7456373986,24.4326880876,19.9944876851,80.2303362813,98.6854373061,4.3960766433,22.1212283642,53.1724684800,50.3620960690,11.3724002897,41.0039978225,64.8333473234,15.5894909570,85.3067494504,84.0015994709,91.3425614815,47.3171987992,16.5602177445,86.5891620670,27.3438542203,72.3398157121,18.5367692487,40.5793436922,70.1641373485,59.9469967755,64.6235988325,35.4129698701,90.1449361797,89.5436831889,20.7605480631,72.2822633062,27.9079298572,67.1159466004,68.6223243990,88.5802505560,13.6363037261,24.7355830273,19.7367890419,63.9377755788,75.6711643900,31.9382648930,45.6193707884,43.8147543419,18.2865472284,39.0358874791,6.6626381087,64.3532950055,57.8284906640,69.1947236148,18.9723704594,28.5984494536,86.5579189727,34.9384562133,26.2378601208,97.9248087536,38.6448350638,77.7968509496,77.5877098686,1.4398382678,87.6189498380,47.8376225653,6.8257593391,95.6884705282,68.3597581018,48.1638241128,16.1232389894,6.8025946135,49.6078329777,17.1302162234,49.6477608677,84.0468898717,60.3049364974,65.8149959441,71.6199402320,37.6571363245,88.7415553423,66.4689612964,52.4968718552,55.0881701336,23.2653091083,79.5475241154,92.2793432818,82.4489210807,62.3116121280,75.2383286962,76.5622551190,26.9191521540,65.2132617394];

q1Arr = (values.length % 2 == 0) ? values.slice(0, (values.length / 2)) : values.slice(0, Math.floor(values.length / 2));
q2Arr =  values;
q3Arr = (values.length % 2 == 0) ? values.slice((values.length / 2), values.length) : values.slice(Math.ceil(values.length / 2), values.length);
medianX(q1Arr);
Q1=median;
medianX(q2Arr);
Q2=median;
medianX(q3Arr);
Q3=median;
function medianX(medianArr) {
count = medianArr.length;
median = (count % 2 == 0) ? (medianArr[(medianArr.length/2) - 1] + medianArr[(medianArr.length / 2)]) / 2 : medianArr[Math.floor(medianArr.length / 2)];
return median;
}
console.log(q1Arr, q2Arr, q3Arr);
console.log("Quartil 1 25% "+Q1,"Quartil 2 50% "+Q2,"Quartil 3 75% "+Q3)//Quartil 1 25% 50.4481202037 Quartil 2 50% 41.83728231035 Quartil 3 75% 82.02411431499999

Gente preciso de ajuda,
baseado nesse site https://www.hackmath.net/en/calculator/quartile-q1-q3
queria fazer desse codigo um modulo pra node
Nao to conseguindo fazer essa função como modulo em node T_T
uma explicacao do que é o quartil esta aqui
http://www.mathsisfun.com/data/quartiles.html

comecei a faze lo, mas o firstQuartil esta retornando [ ]
preciso que verifique isso

https://github.com/enieber/quatis