df-window-func-leadlag-result.py

|brand    |price_sum_prev    |price_sum_current |price_sum_next    |rank|
+---------+------------------+------------------+------------------+----+
|strong   |null              |2651513.6799999983|2107905.480000001 |1   |
|jessnail |2651513.6799999983|2107905.480000001 |1877075.9400000153|2   |
|runail   |2107905.480000001 |1877075.9400000153|1280128.789999989 |3   |
|irisk    |1877075.9400000153|1280128.789999989 |1055984.4699999897|4   |
|grattol  |1280128.789999989 |1055984.4699999897|789238.6300000004 |5   |
|marathon |1055984.4699999897|789238.6300000004 |693014.0199999842 |6   |
|masura   |789238.6300000004 |693014.0199999842 |599136.3200000003 |7   |
|cnd      |693014.0199999842 |599136.3200000003 |546019.0499999991 |8   |
|uno      |599136.3200000003 |546019.0499999991 |544323.2499999983 |9   |
|estel    |546019.0499999991 |544323.2499999983 |489141.04999999976|10  |
|max      |544323.2499999983 |489141.04999999976|427986.93999999884|11  |
|ingarden |489141.04999999976|427986.93999999884|418171.82000000007|12  |
|polarus  |427986.93999999884|418171.82000000007|365795.62000000005|13  |
|italwax  |418171.82000000007|365795.62000000005|306945.5899999999 |14  |
|browxenna|365795.62000000005|306945.5899999999 |296071.9100000001 |15  |
|emil     |306945.5899999999 |296071.9100000001 |293430.7299999994 |16  |
|kapous   |296071.9100000001 |293430.7299999994 |293421.13         |17  |
|shik     |293430.7299999994 |293421.13         |260097.03000000014|18  |
|jas      |293421.13         |260097.03000000014|254294.83999999994|19  |
|kosmekka |260097.03000000014|254294.83999999994|245135.18000000008|20  |
+---------+------------------+------------------+------------------+----+