help for phd student #1
Description
please, Sir. i am a phd student in Harbin institute of technology. i am from Egypt. please, i am writing my research paper now, and i need your help to guide me for making a chart similar to this one. please, guide me where exactly the part of code ding this chart. please, my teacher, i need your help very much.
please, this is my e-mail. igsr,kemo@alexu.edu.eg
i cannot find your e-mail to contact you