Just as the tile, how can I got the picture like this?.
You can try pandas or matplotlib python libraries, and I am pretty sure basic R graphics and ggplot2 can draw pictures like this. Microsoft Paint will be retired but is still available. On linux, you can try Dia or Gimp.
Or you can try reading How To Ask Good Questions On Technical And Scientific Forums, and provide more information about your data and what you have tried so far.
Thx 4 your reply.
Because it's a common descriptive pic in Epigenomics ( Methylome), almost in every article.
It's easy for who do analysis in the field to understand what i am asking from the y-axis.
Any thx. Maybe you are wright. I will add more info.
Here is the same question, but more detail.
How to draw the common used pic about DNA methylome