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summation columns created in pivoting

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unknown 2019-09-10 21:12:52 -04:00
parent d9c05ba321
commit 3dad9c1013
2 changed files with 26 additions and 24 deletions
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4
index.js
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@ -12,8 +12,6 @@ rows = [
["b","3"],
];
table = new Table("Root", rows);
table = new Table("Root", rows, [1]);
table.PivotTree([0, 1]);
table.ItrLeaves( inLeaf => console.log(inLeaf) );
console.log(table, leaves);

42
table.ts
View File

@ -8,9 +8,9 @@ export class Sum
FromChildren: number;
FromOutside: number;
constructor()
constructor(inIndex: number)
{
this.ColumnIndex = 0;
this.ColumnIndex = inIndex;
}
}
@ -18,52 +18,49 @@ export class Table
{
Name: string;
Rows: Array<Array<string>>;
Columns: Array<Sum>;
Parent?: Table;
Children: Array<Table>;
constructor(inName: string, inRows: Array<Array<string>>)
constructor(inName: string, inRows: Array<Array<string>>, inColumns: Array<number>)
{
this.Name = inName;
this.Rows = inRows;
this.Parent = null;
this.Children = [];
this.Columns = inColumns.map( (inIndex: number) => new Sum(inIndex) );
}
Pivot(inColumn: number)
Pivot(inColumnPivot: number)
{
var cell: string;
var child: Table;
var context: Table;
context = this;
this.Rows.forEach((inRow: Array<string>)=>
{
cell = inRow[inColumn];
cell = inRow[inColumnPivot];
child = this.Children.find( (inChild: Table) => inChild.Name == cell );
if(!child)
{
child = new Table(cell, []);
child.Parent = context;
context.Children.push(child);
child = new Table(cell, [], this.Columns.map( (inColumn: Sum) => inColumn.ColumnIndex ));
child.Parent = this;
this.Children.push(child);
}
child.Rows.push(inRow);
});
this.Rows = [];
}
PivotTree(inColumns: Array<number>)
PivotTree(inColumnsPivot: Array<number>)
{
var columns: Array<number>;
var pivotsRemaining: Array<number>;
if(inColumns.length == 0)
if(inColumnsPivot.length == 0)
{
return;
}
columns = [...inColumns];
this.Pivot(columns.shift());
this.Children.forEach( (inChild: Table) =>
{
inChild.PivotTree(columns);
});
pivotsRemaining = [...inColumnsPivot];
this.Pivot(pivotsRemaining.shift());
this.Children.forEach( (inChild: Table) => inChild.PivotTree(pivotsRemaining) );
}
ItrParents(inFunction: Function)
@ -94,3 +91,10 @@ export class Table
}
}
}
export const Iterators = {
SumRows: (inTable: Table) =>
{
}
};