[英]How do I get a dynamic Javascript array into Google Spreadsheets?
[英]Javascript google spreadsheets: how do I find the max value within a group
在Google電子表格中,我有一列重復的年份和一列值。 我想編寫一個腳本,查找每年的最大值。 我已經在下面的腳本中找到了所有年份的最大值,但是很難找到每年的最大值並將其記錄到新列中。
function findmax(){
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheets()[0];
var column = 9;
var colArray = sheet.getRange(2, column, sheet.getLastRow()).getValues();
var maxi = Math.max.apply(Math, colArray)
Logger.log(maxi)
任何想法?
function maxGroupBy() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheets()[0];
var yearCol = 1; // <-assumption that the two column are not adjacent.
var column = 9;
var yearArray = sheet.getRange(1, yearCol, sheet.getLastRow()).getValues();
var colArray = sheet.getRange(1, column, sheet.getLastRow()).getValues();
var group = {};
for (var i = 0; i< yearArray.length; i++) {
group[yearArray[i]] = Math.max((group[yearArray[i]] || colArray[i]), colArray[i]);
}
for (key in group) {
Logger.log(key + "::" + group[key]);
}
}
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