Google Sheets:How to update a cell with the range of values in one column, based on the contents of another range of values in different column?

Question

In cell K18, I want to see the range of values from column F (Velocity), which should be dependent on the range (same rows) from column G (Peak dB). So something like 37-39 or 37 to 39 to be displayed in the cell K18 (or whichever syntax is best to use for pivot tables and/or charts (maybe a low column and a high column is better for making my chart? I don't know).

Column G is set to Conditional Formatting, to colour cells falling between multiple different ranges (-9 to-8, -8 to -7 etc)

The =COUNTIFS function in column J shows the total number of hits/occurences within the given range from G column(Peak dB). (I coloured the cells to match the Conditional Formatting colours of Column G manually).

In the end, the outcome i want, is to bring this info into a chart that neatly overlays/stacks the data from columns I (dB Range), J (No of hits) and K (Velocity Ranges), together.

Answer 1

Given the sample data I'd suggest you to use Google Apps Script

Here's my approach:

function processVelocityRanges() {
  let ss = SpreadsheetApp.getActiveSpreadsheet();
  let sheet = ss.getActiveSheet();
  
  let dataLength = sheet.getDataRange().getValues().length; // Get number of rows
  let velocityRange = sheet.getRange(`F2:F${dataLength}`).getValues(); // Column F
  let peakDBRange = sheet.getRange(`G2:G${dataLength}`).getValues(); // Column G
  let dbRange = sheet.getRange(`I2:I${dataLength}`).getValues(); // Column I

  for(dbRangeIndex = 0; dbRangeIndex < dbRange.length; dbRangeIndex++) {
    let value = dbRange[dbRangeIndex][0];
    if(value) {
      let splitValue = value.split(" to ");
      let lesserValue = Number.parseInt(splitValue[0]);
      let greaterValue = Number.parseInt(splitValue[1]);
      
      // Get the velocity range
      let velocityRangeText = getVelocityRange(lesserValue, greaterValue, velocityRange, peakDBRange);
      if (velocityRangeText) {
        let rowToChange = dbRangeIndex + 2;
        // Change the text in K column
        sheet.getRange(`K${rowToChange}`).setValue(velocityRangeText);
      }
    }
  }
}

function getVelocityRange(lesserValue, greaterValue, velocityRange, peakDBRange) {
  let velocityValues = [];
  for(i = 0; i < peakDBRange.length; i++) {
    if (peakDBRange[i][0] <= greaterValue && peakDBRange[i][0] >= lesserValue) {
      velocityValues.push(velocityRange[i][0]);
    }
  }

  if (velocityValues.length <= 1) {
    return "";
  }

  return `${Math.min(...velocityValues)} to ${Math.max(...velocityValues)}`; // destructuring assignment
}

First of all retrieve the ranges where you have to make comparisons, then using these make a simple search. This code only provides text if there are at least 2 values in order to create a "min TO max" text. Otherwise it just returns an empty string from getVelocityRange function and doesn't set any value on your Sheet.