<div>Dear Sir/Madam,</div><div><br></div><div> I use the script attached to plot the significance area (student's t test) with contour lines. I am wondering if there is a way to make the positive area (shading) in solid line while negative area in dash line. The output is also attached. Thanks.</div><div> For another output named T2-CTLF-CTL-sum.pdf, most of the area are at 95% significant. By contrast, only region not significant show with contours. Could you also tell me how to deal with such kind of situation. I try to use dot instead of contour to show significant area. But all the plot become black because of the data at a high resolution. Here comes the question that how to decrease the density of the dots? Thanks.</div><div><br></div><div>Best regards,</div><div>zhen</div><div><br></div><div><div style="color:#909090;font-family:Arial Narrow;font-size:12px">------------------</div><div style="font-size:14px;font-family:Verdana;color:#000;"><div>刘振</div>
<div>中山大学<br>环境科学与工程学院<br>大气科学系<br>Phone: +86-15013246049</div>
<div>Liu Zhen</div>
<div>Department of Atmospheric Science<br>School of Environmental Science and Engineering</div>
<div>Sun Yat-sen University<br>Email address: <font color="#7f7f7f">liuzhen9@mail2.sysu.edu.cn</font> </div></div></div><div> </div>