I have below df which are contains coefficient and intercept daywise:

```
Day            coefficient        intercept
01-01-2019       0.21               1.21
01-02-2019       0.20               1.22
01-03-2019       0.19               1.23
01-04-2019       0.18               1.24
01-05-2019       0.22               1.25
01-06-2019       0.23               1.26
01-07-2019       0.24               1.27
01-08-2019       0.25               1.28
01-09-2019       0.26               1.29

```

I would like to multiply coefficient and add intercept to 'col1' data in below time series data daywise.

```
date                 col1      col2        New Col(*coeff+intercept)
01-01-2019 00:00      0.9       0.11
01-01-2019 00:10      0.8       0.12
01-01-2019 00:20      0.7       0.13
01-01-2019 00:30      0.6       0.14
01-01-2019 00:40      0.5       0.15
01-01-2019 00:50      0.4       0.16
01-02-2019 00:00      0.1       0.17         1.231
01-02-2019 00:10      0.2       0.18         1.252
01-02-2019 00:20      0.3       0.19         1.273 
01-02-2019 00:30      0.4       0.90         1.294
01-02-2019 00:40      0.5       0.90         1.315
01-02-2019 00:50      0.6       0.90         1.336
01-03-2019 00:00      0.7       0.90         1.36
01-03-2019 00:10      0.8       0.90         1.38
01-03-2019 00:20      0.9       0.90         1.4
01-03-2019 00:30      0.1       0.90         1.24

```

But I wants to apply coefficient and intercept of previous day to on next day data