Add autoscaler for ymax because gnuplot's is broken

set_ymax.py

@@ -0,0 +1,72 @@
+import subprocess
+import sys
+
+norm = False
+def extract_countries(filename):
+    global norm
+    file = open(filename, "r")
+    plot = False
+    datafiles = []
+    for line in file:
+        if "per million" in line:
+            norm = True
+        if "plot" == line[:4]:
+            plot = True
+        if line.strip() == "" or line[0] == "#":
+            plot = False
+        if plot:
+            for curve in line.split(","):
+                for part in curve.split('"'):
+                    if "../" in part:
+                        datafiles.append(part)
+    print(datafiles)
+    countries = []
+    for path in datafiles:
+        parts = path.split("/")
+        fname = parts[len(parts)-1].lower()
+        prefix = fname.split("-")[0]
+        countries.append((path,prefix))
+    file.close()
+    return countries
+
+assert(len(sys.argv) == 2 or len(sys.argv) == 3)
+filename = sys.argv[1]
+scale = 2
+if len(sys.argv) == 3:
+    scale = float(sys.argv[2])
+
+countries = extract_countries(filename)
+
+pfile = open("populations", "r")
+sizes = {}
+for line in pfile:
+    parts = line.split("#")
+    country = "".join(parts[1].strip().split(" ")).lower()
+    size = float(parts[0].split("=")[1].strip())
+    print(country, size)
+    if country == "usa":
+        country = "us"
+    if ":" in country:
+        country = country.split(":")[1].strip()
+    sizes[country] = size
+
+cases_max = 0
+for country,short in countries:
+    if country[:3] == "../":
+        country = country[3:]
+    file = open(country, "r")
+    for line in file:
+        if line.strip() == "":
+            continue
+        parts = line.split()
+        date = parts[0]
+        cases = int(parts[1])
+        if norm:
+            cases /= sizes[short]
+        if cases > cases_max:
+            cases_max = cases
+    file.close()
+
+ymax = cases_max * scale
+subprocess.call("cat " + filename + ' | sed -e "s/YMAX/' + str(ymax) + '/g" >' + filename + ".tmp", shell = True)
+subprocess.call("mv " + filename + ".tmp " + filename, shell = True)