| 44 | columns?: ArrayType1D |
| 45 | |
| 46 | constructor({left, right, on, how}: mergeParam) { |
| 47 | this.left = left |
| 48 | this.right = right |
| 49 | this.on = on |
| 50 | this.how = how |
| 51 | |
| 52 | //Obtain the column index of the column will |
| 53 | //want to merge on for both left and right dataframe |
| 54 | for(let i =0; i < this.on.length; i++) { |
| 55 | let key = this.on[i] |
| 56 | if (this.left.columns.includes(key) && this.right.columns.includes(key)) { |
| 57 | let leftIndex = this.left.columns.indexOf(key) |
| 58 | let rightIndex = this.right.columns.indexOf(key) |
| 59 | this.leftColIndex.push(leftIndex) |
| 60 | this.rightColIndex.push(rightIndex) |
| 61 | } |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * Generate key combination base on the columns we want to merge on |