I'm too lazy to make a proper answer right now, but search for \closedcycle in the pgpflots manual to make the filled part. For the dashed lines, make a second plot with ycomb. If you get stuck, post the code you got, and someone will be able to fill in the blanks.
– Torbjørn T.Sep 18 '17 at 21:13
\closedcyclein thepgpflotsmanual to make the filled part. For the dashed lines, make a second plot withycomb. If you get stuck, post the code you got, and someone will be able to fill in the blanks. – Torbjørn T. Sep 18 '17 at 21:13pgfplotsdocumentation. – Arkadiusz Wieczorek Sep 18 '17 at 21:30pgfplots. – cfr Sep 18 '17 at 22:25\closedcyclebefore. – Arkadiusz Wieczorek Sep 19 '17 at 04:31