这个是发病数的一个预测,肯定不可能出现负数的,请问怎样才能调整纵坐标不出现负数呢?
原始数据如下:
data | cases |
Jan-08 | 9 |
Feb-08 | 9 |
Mar-08 | 16 |
Apr-08 | 30 |
May-08 | 32 |
Jun-08 | 47 |
Jul-08 | 27 |
Aug-08 | 6 |
Sep-08 | 1 |
Oct-08 | 1 |
Nov-08 | 2 |
Dec-08 | 1 |
Jan-09 | 4 |
Feb-09 | 4 |
Mar-09 | 2 |
Apr-09 | 3 |
May-09 | 2 |
Jun-09 | 1 |
Jul-09 | 0 |
Aug-09 | 1 |
Sep-09 | 0 |
Oct-09 | 0 |
Nov-09 | 0 |
Dec-09 | 0 |
Jan-10 | 0 |
Feb-10 | 1 |
Mar-10 | 0 |
Apr-10 | 0 |
May-10 | 2 |
Jun-10 | 0 |
Jul-10 | 1 |
Aug-10 | 0 |
Sep-10 | 1 |
Oct-10 | 1 |
Nov-10 | 0 |
Dec-10 | 1 |
Jan-11 | 1 |
Feb-11 | 1 |
Mar-11 | 0 |
Apr-11 | 1 |
May-11 | 1 |
Jun-11 | 0 |
Jul-11 | 0 |
Aug-11 | 1 |
Sep-11 | 0 |
Oct-11 | 0 |
Nov-11 | 0 |
Dec-11 | 0 |
Jan-12 | 0 |
Feb-12 | 0 |
Mar-12 | 1 |
Apr-12 | 2 |
May-12 | 3 |
Jun-12 | 1 |
Jul-12 | 0 |
Aug-12 | 1 |
Sep-12 | 0 |
Oct-12 | 0 |
Nov-12 | 0 |
Dec-12 | 0 |
Jan-13 | 0 |
Feb-13 | 1 |
Mar-13 | 1 |
Apr-13 | 3 |
May-13 | 1 |
Jun-13 | 4 |
Jul-13 | 3 |
Aug-13 | 8 |
Sep-13 | 1 |
Oct-13 | 1 |