I have a column within a dataframe with numbers that looks like this below

```
      City                Temperature
      Edmonton, Alberta   4.1,13.6,15.2,15.7,14.2,15.2,16,14.2,17,13.1
      Edmonton, Alberta   15,18.2,14.8,16.5,14.6,16.9,14.3,17.5,13,15.8
      Edmonton, Alberta   15.8,17.9,16.9,15.1,13.2,13.1,16.8,12.4,14.7,15.6
      Edmonton, Alberta   14.3,17.3,14.6,17.3,14.8,14,15.4,14.1,16,15.4

```

My objective is to read the data in `Temperature` column and create two additional columns that stores the Minimum and Maximum temperatures like this.

```
      City                Temperature                                         Min      Max
      Edmonton, Alberta   4.1,13.6,15.2,15.7,14.2,15.2,16,14.2,17,13.1        4.1      16
      Edmonton, Alberta   15,18.2,14.8,16.5,14.6,16.9,14.3,17.5,13,15.8       13       18.2
      Edmonton, Alberta   15.8,17.9,16.9,15.1,13.2,13.1,16.8,12.4,14.7,15.6   12.4     17.9
      Edmonton, Alberta   14.3,17.3,14.6,17.3,14.8,14,15.4,14.1,16,15.4       14.1     17.3

```

I tried the simple `min(df$Temperature[1])` function but it didnt work. So not sure how to deal with this data, any advise or suggestion is much appreciated.