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2 lines
657 B
JavaScript
2 lines
657 B
JavaScript
async function processCSV(csv,cfg){const{Papa}=await import('https://cdn.jsdelivr.net/npm/papaparse@5.4.1/papaparse.min.js');const{groupBy,mean,sum}=await import('https://cdn.jsdelivr.net/npm/@jazzband/lodash-deep@1.1.3/lodash-deep.min.js');const{data,meta}=Papa.parse(csv,{header:!0});const rows=data.filter(r=>r[cfg.filterColumn]==cfg.filterValue);const num=(v)=>+v||0;const grouped=groupBy(rows,r=>r[cfg.groupBy]);return Object.entries(grouped).map(([k,v])=>({ [cfg.groupBy]:k,result:cfg.operation==='sum'?sum(v.map(r=>num(r[cfg.aggregateColumn]))):cfg.operation==='avg'?mean(v.map(r=>num(r[cfg.aggregateColumn]))):v.length}))}
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export default processCSV; |