rindes

/**** Start of imports. If edited, may not auto-convert in the playground. ****/
var geometry = /* color: #d63000 */ee.FeatureCollection(
        [ee.Feature(
            ee.Geometry.Polygon(
                [[[-59.002365002264774, -37.26971948939343],
                  [-59.007343182196415, -37.265894395383306],
                  [-59.01841534100989, -37.26917305928853],
                  [-59.026311764349735, -37.27648123375289],
                  [-59.02013195477942, -37.2811936055169]]]),
            {
              "system:index": "0"
            }),
        ee.Feature(
            ee.Geometry.Polygon(
                [[[-59.00103462659339, -37.26330082209913],
                  [-58.99468315564612, -37.26835554343563],
                  [-58.98198021375159, -37.26002190252021],
                  [-58.988331684698856, -37.25605968424254]]]),
            {
              "system:index": "1"
            })]);
/***** End of imports. If edited, may not auto-convert in the playground. *****/

var cloudBitMask = ee.Number(2).pow(10).int();
var cirrusBitMask = ee.Number(2).pow(11).int();
var to = new Date();
var since = new Date(to -1000 * 60 * 60 * 24 * 150);

var S2Collection = ee.ImageCollection('COPERNICUS/S2').filterBounds(geometry).filterDate(since, to).filterMetadata('CLOUDY_PIXEL_PERCENTAGE','less_than',2);

var S2CloudMasked = S2Collection
  .map(function (image) {
    var qa = image.select('QA60');
    var mask = qa.bitwiseAnd(cloudBitMask).eq(0)
              .and(qa.bitwiseAnd(cirrusBitMask).eq(0));
    return image.updateMask(mask);
  });

/*
  Rinde Maiz = 22,068*NDVI^2-9,5584*NDVI+2,6075
  Rinde Girasol= -3454,1*NDVI^2+10145*NDVI-3663,2
*/

var NDVI = S2Collection
  .map(function (image) {
    return image.addBands(image.normalizedDifference(['B8', 'B4']).rename('NDVI'));
  })
  .select(['NDVI'])
  .map(function (image) {
    var rinde = image.expression(
      '-3454.1 * ( NDVI ** 2 ) + 10145 * NDVI - 3663.2', 
      {
        'NDVI':image.select('NDVI')
      }
    );
    return image.addBands(rinde.rename('RINDE_GL'));
  })
  .map(function (image) {
    var rinde = image.expression(
      '22.068 * ( NDVI ** 2 ) - 9.5584 * NDVI + 2.6075', 
      {
        'NDVI':image.select('NDVI')
      }
    );
    return image.addBands(rinde.rename('RINDE_MZ'));
  });
  
var chart_opt = { title: 'NDVI',hAxis: {title: 'Tiempo'},vAxis: {title: 'NDVI'} };
print(ui.Chart.image.series(NDVI.select(['NDVI']), geometry).setOptions(chart_opt));

var reduced = NDVI.map(function(image){
  return image.reduceRegions({
    collection:geometry , 
    reducer:ee.Reducer.mean(), 
    scale: 30
  });
});

print(reduced);

var table = reduced.flatten();

print(table);

//print('NDVI max:', NDVI.aggregate_max('NDVI'));

/*
var rinde = ee.Number.expression(
  '22.068 * ( NDVI ** 2 ) - 9.5584 * NDVI + 2.6075', 
  {
    'NDVI': 0.80
  }
);

print(rinde);

var rinde = ee.Number.expression(
  '( -3454.1 * ( NDVI ** 2 ) + 10145 * NDVI - 3663.2 ) / 1000', 
  {
    'NDVI': 0.80
  }
);

print(rinde);
*/