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{"konventionell/integriert::Sommerackerbohnen - Körnergewinnung::wendend, gezogene Saatbettbereitung, Saat":[{"year":2018,"yield":35.8,"price":17.91,"revenue":641,"seeds":93,"fertilizer":45,"pesticides":119,"others":83,"sdb":301,"varCosts":340},{"year":2017,"yield":34.1,"price":17.79,"revenue":607,"seeds":99,"fertilizer":45,"pesticides":115,"others":79,"sdb":269,"varCosts":338},{"year":2016,"yield":35.1,"price":17.16,"revenue":602,"seeds":128,"fertilizer":62,"pesticides":113,"others":81,"sdb":217,"varCosts":385},{"year":2015,"yield":38,"price":19.3,"revenue":734,"seeds":131,"fertilizer":65,"pesticides":113,"others":89,"sdb":336,"varCosts":398},{"year":2014,"yield":34.4,"price":20.82,"revenue":717,"seeds":126,"fertilizer":49,"pesticides":112,"others":82,"sdb":347,"varCosts":369},{"year":2013,"yield":32.2,"price":24.32,"revenue":783,"seeds":129,"fertilizer":53,"pesticides":112,"others":78,"sdb":411,"varCosts":373},{"year":2012,"yield":28.9,"price":19.49,"revenue":563,"seeds":119,"fertilizer":56,"pesticides":109

chrispahm

{"konventionell/integriert::Sommerackerbohnen - Körnergewinnung::wendend, gezogene Saatbettbereitung, Saat":{"varCosts":[212.028611980753,-4.68966868737025,0.0488360857650367,2.91253832080648,-0.0284166263449593,-0.00618019572180368],"fixCosts":[321.038508396658,-6.61332451954161,0.0663431421309443,1.93204071200841,-0.012795353655188,0.00778511329712469],"JAN":[0,0,0,0,0,0],"FEB":[0,0,0,0,0,0],"MRZ":[2.80509595582486,-0.146695350409434,0.00156690523636225,0.108294573638782,-0.00123831574877968,-0.00061945243526232],"APR":[0,0,0,0,0,0],"MAI":[0.769781312041604,-0.0529379530852461,0.000585216504612539,0.0546266750575244,-0.000640613220174498,-0.000406597232317381],"JUN":[0,0,0,0,0,0],"JUL":[0,0,0,0,0,0],"AUG":[1.86633079569951,-0.0572765991525298,0.000582771489512085,0.0236532608257089,-0.000127973685059161,-0.000084942909915301],"SEP":[0.925680932233967,-0.0309942393637948,0.000308753108504588,0.00952975868691227,-0.0000713385421707318,0.0000301986540459087],"OKT":[2.48797194677527,-0.0598464953546542,0.000577

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{
  "konventionell/integriert::Mais - Körnermais::wendend, gezogene Saatbettbereitung, Saat": {
    "varCosts": [429.2100054682, -2.15585823294687, 0.0113375527390382, 4.67166502967974, -0.0335173702325071, 0.0108466768551407],
    "fixCosts": [404.644339578215, -2.99848438883808, 0.0126061380285447, 3.57776575875562, -0.030297488509476, 0.0154255499402457],
    "diesel": [87.6239368617408, -0.970760779480302, 0.00596949331439337, 2.51384452879148, -0.0162398685694236, 0.00415596692077977],
    "kea": [40012.9253842185, -63.8546762633683, 0.408415311367651, 143.360060954624, -0.962513851783179, 0.282736820138856],
    "JAN": [0, 0, 0, 0, 0, 0],
    "FEB": [0, 0, 0, 0, 0, 0],
    "MRZ": [0.22692954207248, -0.0135910629678798, 0.000262785707520569, 0.000888304021087536, -0.00000830077546462287, 0.0000543155715838675],
    "APR": [3.37830550032205, -0.245688387844083, 0.00497703379193492, 0.138751083557847, -0.00128187705085698, -0.000338751739448481],

chrispahm

{"konventionell/integriert::Sommerackerbohnen - Körnergewinnung::wendend, gezogene Saatbettbereitung, Saat":[{"year":2019,"region":"Arnsberg","yield":39.7,"byPrdouctYield":0,"byProductPrice":0,"price":17.14,"revenue":680,"seeds":86,"fertilizer":58,"pesticides":125,"others":77,"sdb":335},{"year":2018,"region":"Arnsberg","yield":49.4,"byPrdouctYield":0,"byProductPrice":0,"price":15.64,"revenue":773,"seeds":100,"fertilizer":85,"pesticides":125,"others":95,"sdb":368},{"year":2017,"region":"Arnsberg","yield":48,"byPrdouctYield":0,"byProductPrice":0,"price":14.86,"revenue":714,"seeds":103,"fertilizer":75,"pesticides":124,"others":91,"sdb":321},{"year":2016,"region":"Arnsberg","yield":35.9,"byPrdouctYield":0,"byProductPrice":0,"price":15.05,"revenue":541,"seeds":125,"fertilizer":62,"pesticides":122,"others":69,"sdb":163},{"year":2015,"region":"Arnsberg","yield":47.4,"byPrdouctYield":0,"byProductPrice":0,"price":19.34,"revenue":917,"seeds":135,"fertilizer":87,"pesticides":122,"others":95,"sdb":479},{"year":2014,"regi

chrispahm

{
  "_id": "rfid_string::timestamp_iso8601::amountDiesel",
  "rfid": "rfid_string",
  "time": "timestamp_iso8601",
  "amount": 420.24
}

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// Source: https://stats.stackexchange.com/questions/83826/is-a-weighted-r2-in-robust-linear-model-meaningful-for-goodness-of-fit-analys/375752#375752
// Article: Willet and Singer (1988): https://gseacademic.harvard.edu/~willetjo/pdf%20files/Willett_Singer_AS88.pdf
function weightedRsquared(x, func, weights) {
  if (!weights) weights = x.map(v => 1);
  // Compute the weighted average y value for the actual
  // data set in order to compute the
  // _total sum of squares_
  let sum = 0;
  for (let i = 0; i < x.length; i++) {
    sum += x[i][1] * weights[i];

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import { open } from 'fs/promises'
import { Buffer } from 'buffer'

const HIGHWATERMARK = 64 * 1024 / 8

function getFeaturePositionsInFile(fd) {
  return new Promise((resolve,reject) => {
    const featurePositionsInFile = []
    const stream = fd.createReadStream({highWaterMark: HIGHWATERMARK, autoClose: false});
    // this RegEx will solely work with standard GeoJSON without any foreign members: