Method setData

docs/app/js/sanddance-app.js:10476–10487

(data, columns)

        this.filteredColumnsStats = {};
    }
    setData(data, columns) {
        const differentData = this.data !== data;
        if (differentData) {
            if (this.data) //clean up things we added to old data
            this.deselect();
            this.data = data;
            this.columns = columns;
            this.filteredData = null;
            this.filteredColumnsStats = {};
        }
        return differentData;
    }
    setFilteredData(filteredData) {
        this.filteredData = filteredData;
        this.filteredColumnsStats = {};