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app.py

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+import streamlit as st
+import graphviz as graphviz
+import pandas as pd
+import numpy as np
+
+st.title('Graphviz Gallery: https://graphviz.org/gallery/')
+
+# Using code:
+
+# Create a graphlib graph object
+graph = graphviz.Digraph()
+graph.edge('Grandpa', 'Ancestors')
+graph.edge('Grandma', 'Ancestors')
+graph.edge('Uncle', 'Grandma')
+graph.edge('Aunt', 'Grandma')
+graph.edge('Mom', 'Grandma')
+graph.edge('Cousin Bob', 'Aunt')
+graph.edge('Cousin Sue', 'Aunt')
+graph.edge('Brother', 'Mom')
+graph.edge('Sister', 'Mom')
+st.graphviz_chart(graph)
+
+
+st.graphviz_chart(''' 
+digraph G2 {
+    node [shape=plaintext];
+    struct1 [label=<<TABLE>
+      <TR><TD><IMG SRC="1.png"></IMG></TD></TR>
+      <TR><TD>caption</TD></TR>
+    </TABLE>>];
+}
+''')
+
+
+
+st.title('Graphviz Dot Language: https://graphviz.org/doc/info/lang.html')
+
+# Using graph language:
+st.graphviz_chart(''' 
+digraph G {
+  rankdir=LR
+  node [shape=plaintext]
+  a [
+     label=<
+<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
+  <TR><TD ROWSPAN="3" BGCOLOR="yellow">class</TD></TR>
+  <TR><TD PORT="here" BGCOLOR="lightblue">qualifier</TD></TR>
+</TABLE>>
+  ]
+  b [shape=ellipse style=filled
+     label=<
+<TABLE BGCOLOR="bisque">
+  <TR>
+      <TD COLSPAN="3">elephant</TD> 
+      <TD ROWSPAN="2" BGCOLOR="chartreuse" 
+          VALIGN="bottom" ALIGN="right">two</TD>
+  </TR>
+  <TR>
+    <TD COLSPAN="2" ROWSPAN="2">
+      <TABLE BGCOLOR="grey">
+        <TR><TD>corn</TD></TR> 
+        <TR><TD BGCOLOR="yellow">c</TD></TR> 
+        <TR><TD>f</TD></TR> 
+      </TABLE>
+    </TD>
+    <TD BGCOLOR="white">penguin</TD> 
+  </TR> 
+  <TR>
+    <TD COLSPAN="2" BORDER="4" ALIGN="right" PORT="there">4</TD>
+  </TR>
+</TABLE>>
+  ]
+  c [ 
+  label=<long line 1<BR/>line 2<BR ALIGN="LEFT"/>line 3<BR ALIGN="RIGHT"/>>
+  ]
+  subgraph { rank=same b c }
+  a:here -> b:there [dir=both arrowtail=diamond]
+  c -> b
+  d [shape=triangle]
+  d -> c [label=<
+<TABLE>
+  <TR>
+    <TD BGCOLOR="red" WIDTH="10"> </TD>
+    <TD>Edge labels<BR/>also</TD>
+    <TD BGCOLOR="blue" WIDTH="10"> </TD>
+  </TR>
+</TABLE>>
+  ]
+}
+''')
+
+st.graphviz_chart(''' 
+digraph R {
+  rankdir=LR
+  node [style=rounded]
+  node1 [shape=box]
+  node2 [fillcolor=yellow, style="rounded,filled", shape=diamond]
+  node3 [shape=record, label="{ a | b | c }"]
+  node1 -> node2 -> node3
+}
+''')
+
+st.title('Vega Lite Example: https://docs.streamlit.io/library/api-reference/charts/st.vega_lite_chart ')
+df = pd.DataFrame(
+     np.random.randn(200, 3),
+     columns=['a', 'b', 'c'])
+
+st.vega_lite_chart(df, {
+     'mark': {'type': 'circle', 'tooltip': True},
+     'encoding': {
+         'x': {'field': 'a', 'type': 'quantitative'},
+         'y': {'field': 'b', 'type': 'quantitative'},
+         'size': {'field': 'c', 'type': 'quantitative'},
+         'color': {'field': 'c', 'type': 'quantitative'},
+     },
+ })
+
+# More graph examples
+
+st.graphviz_chart(''' 
+digraph structs {
+    node [shape=record];
+    struct1 [label="<f0> left|<f1> mid&#92; dle|<f2> right"];
+    struct2 [label="<f0> one|<f1> two"];
+    struct3 [label="hello&#92;nworld |{ b |{c|<here> d|e}| f}| g | h"];
+    struct1:f1 -> struct2:f0;
+    struct1:f2 -> struct3:here;
+}
+''')
+
+st.graphviz_chart(''' 
+graph G {
+  fontname="Helvetica,Arial,sans-serif"
+  node [fontname="Helvetica,Arial,sans-serif"]
+  edge [fontname="Helvetica,Arial,sans-serif"]
+  layout=fdp
+  e
+  subgraph clusterA {
+    a -- b;
+    subgraph clusterC {
+      C -- D;
+    }
+  }
+  subgraph clusterB {
+    d -- f
+  }
+  d -- D
+  e -- clusterB
+  clusterC -- clusterB
+}
+''')
+
+st.graphviz_chart(''' 
+graph Transparency {
+	layout=neato
+	start=11 // empiric value to set orientation
+	bgcolor="#0000ff11"
+	node [shape=circle width=2.22 label="" style=filled]
+	5 [color="#0000ff80"]
+	6 [color="#ee00ee80"]
+	1 [color="#ff000080"]
+	2 [color="#eeee0080"]
+	3 [color="#00ff0080"]
+	4 [color="#00eeee80"]
+	1 -- 2 -- 3 -- 4 -- 5 -- 6 -- 1
+	}
+''')
+
+st.graphviz_chart('''
+digraph UML_Class_diagram {
+	fontname="Helvetica,Arial,sans-serif"
+	node [fontname="Helvetica,Arial,sans-serif"]
+	edge [fontname="Helvetica,Arial,sans-serif"]
+	labelloc="t"
+	label="UML Class diagram demo"
+	graph [splines=false]
+	node [shape=record style=filled fillcolor=gray95]
+	edge [arrowhead=vee style=dashed]
+	Client -> Interface1 [xlabel=dependency]
+	Client -> Interface2
+	edge [dir=back arrowtail=empty style=""]
+	Interface1 -> Class1 [xlabel=inheritance]
+	Interface2 -> Class1 [dir=none]
+	Interface2 [label="" xlabel="Simple\ninterface" shape=circle]
+	Interface1[label = <{<b>«interface» I/O</b> | + property<br align="left"/>...<br align="left"/>|+ method<br align="left"/>...<br align="left"/>}>]
+	Class1[label = <{<b>I/O class</b> | + property<br align="left"/>...<br align="left"/>|+ method<br align="left"/>...<br align="left"/>}>]
+	edge [dir=back arrowtail=empty style=dashed]
+	Class1 -> System_1 [xlabel=implementation]
+	System_1 [label = <{<b>System</b> | + property<br align="left"/>...<br align="left"/>|+ method<br align="left"/>...<br align="left"/>}>]
+	"Shared resource" [label = <{<b>Shared resource</b> | + property<br align="left"/>...<br align="left"/>|+ method<br align="left"/>...<br align="left"/>}>]
+	edge [dir=back arrowtail=diamond]
+	"System_1" -> Subsystem_1 [xlabel="composition"]
+	Subsystem_1[label = <{<b>Subsystem 1</b> | + property<br align="left"/>...<br align="left"/>|+ method<br align="left"/>...<br align="left"/>}>]
+	Subsystem_2[label = <{<b>Subsystem 2</b> | + property<br align="left"/>...<br align="left"/>|+ method<br align="left"/>...<br align="left"/>}>]
+	Subsystem_3[label = <{<b>Subsystem 3</b> | + property<br align="left"/>...<br align="left"/>|+ method<br align="left"/>...<br align="left"/>}>]
+	"System_1" -> Subsystem_2
+	"System_1" -> Subsystem_3
+	edge [xdir=back arrowtail=odiamond]
+	Subsystem_1 -> "Shared resource" [xlabel=aggregation]
+	{Subsystem_2 Subsystem_3 } -> "Shared resource"
+}
+''')
+
+
+
+st.graphviz_chart('''
+digraph G {
+	fontname="Helvetica,Arial,sans-serif"
+	node [fontname="Helvetica,Arial,sans-serif"]
+	edge [fontname="Helvetica,Arial,sans-serif"]
+	subgraph cluster_1 {
+		node [ style=filled,shape="box",fillcolor="antiquewhite:aquamarine" ]n5;
+		node [ shape="ellipse",fillcolor="bisque4:blue2" ]n4;
+		node [ shape="circle",fillcolor="cadetblue1:chocolate1" ]n3;
+		node [ shape="diamond",fillcolor="crimson:cyan4" ]n2;
+		node [ shape="triangle",fillcolor="deepskyblue2:firebrick" ]n1;
+		node [ shape="pentagon",fillcolor="gray24:gray88" ]n0;
+		label = "X11 Colors";
+	}
+	subgraph cluster_2 {
+		node [ style=filled,shape="box",fillcolor="bisque:brown" ]n11;
+		node [ shape="ellipse",fillcolor="green:darkorchid" ]n10;
+		node [ shape="circle",fillcolor="deepskyblue:gold" ]n9;
+		node [ shape="diamond",fillcolor="lightseagreen:orangered" ]n8;
+		node [ shape="triangle",fillcolor="turquoise:salmon" ]n7;
+		node [ shape="pentagon",fillcolor="snow:black" ]n6;
+		label = "SVG Colors";
+	}
+	subgraph cluster_3 {
+		node [ style=filled,shape="box",fillcolor="/accent3/1:/accent3/3" ]n17;
+		node [ shape="ellipse",fillcolor="/accent4/1:/accent4/4" ]n16;
+		node [ shape="circle",fillcolor="/accent5/1:/accent5/5" ]n15;
+		node [ shape="diamond",fillcolor="/accent6/1:/accent6/6" ]n14;
+		node [ shape="triangle",fillcolor="/accent7/1:/accent7/7" ]n13;
+		node [ shape="pentagon",fillcolor="/accent8/1:/accent8/8" ]n12;
+		label = "Brewer - accent";
+	}
+	subgraph cluster_4 {
+		node [ style=filled,shape="box",fillcolor="/blues3/1:/blues3/2" ]n23;
+		node [ shape="ellipse",fillcolor="/blues4/1:/blues4/3" ]n22;
+		node [ shape="circle",fillcolor="/blues5/1:/blues5/4" ]n21;
+		node [ shape="diamond",fillcolor="/blues6/1:/blues6/5" ]n20;
+		node [ shape="triangle",fillcolor="/blues7/1:/blues7/6" ]n19;
+		node [ shape="pentagon",fillcolor="/blues8/1:/blues8/7" ]n18;
+		label = "Brewer - blues";
+	}
+n3 -> n9 -> n15 -> n21;
+}
+''')
+
+st.graphviz_chart('''
+digraph G {bgcolor="#0000FF44:#FF000044" gradientangle=90
+	fontname="Helvetica,Arial,sans-serif"
+	node [fontname="Helvetica,Arial,sans-serif"]
+	edge [fontname="Helvetica,Arial,sans-serif"]
+	subgraph cluster_0 {
+		style=filled;
+		color=lightgrey;
+		fillcolor="darkgray:gold";
+		gradientangle=0
+		node [fillcolor="yellow:green" style=filled gradientangle=270] a0;
+		node [fillcolor="lightgreen:red"] a1;
+		node [fillcolor="lightskyblue:darkcyan"] a2;
+		node [fillcolor="cyan:lightslateblue"] a3;
+		a0 -> a1 -> a2 -> a3;
+		label = "process #1";
+	}
+	subgraph cluster_1 {
+		node [fillcolor="yellow:magenta" 
+			 style=filled gradientangle=270] b0;
+		node [fillcolor="violet:darkcyan"] b1;
+		node [fillcolor="peachpuff:red"] b2;
+		node [fillcolor="mediumpurple:purple"] b3;
+		b0 -> b1 -> b2 -> b3;
+		label = "process #2";
+		color=blue
+		fillcolor="darkgray:gold";
+		gradientangle=0
+		style=filled;
+	}
+	start -> a0;
+	start -> b0;
+	a1 -> b3;
+	b2 -> a3;
+	a3 -> a0;
+	a3 -> end;
+	b3 -> end;
+	start [shape=Mdiamond ,
+		fillcolor="pink:red",
+		gradientangle=90,
+		style=radial];
+	end [shape=Msquare,
+		fillcolor="lightyellow:orange",
+		style=radial,
+		gradientangle=90];
+}
+''')
+
+st.graphviz_chart('''
+graph Color_wheel {
+	graph [
+		layout = neato
+		label = "Color wheel, 33 colors.\nNeato layout"
+		labelloc = b
+		fontname = "Helvetica,Arial,sans-serif"
+		start = regular
+		normalize = 0
+	]
+	node [
+		shape = circle
+		style = filled
+		color = "#00000088"
+		fontname = "Helvetica,Arial,sans-serif"
+	]
+	edge [
+		len = 2.7
+		color = "#00000088"
+		fontname = "Helvetica,Arial,sans-serif"
+	]
+	subgraph Dark {
+		node [fontcolor = white width = 1.4]
+		center [width = 1 style = invis shape = point]
+		center -- darkred [label = "0°/360°"]
+		darkred [fillcolor = darkred]
+		brown [fillcolor = brown]
+		brown -- center [label = "30°"]
+		olive [fillcolor = olive]
+		olive -- center [label = "60°"]
+		darkolivegreen [fillcolor = darkolivegreen fontsize = 10]
+		darkolivegreen -- center [label = "90°"]
+		darkgreen [fillcolor = darkgreen]
+		darkgreen -- center [label = "120°"]
+		"dark hue 0.416" [color = ".416 1 .6" fontcolor = white]
+		"dark hue 0.416" -- center [label = "150°"]
+		darkcyan [fillcolor = darkcyan]
+		darkcyan -- center [label = "180°"]
+		"dark hue 0.583" [color = ".583 1 .6" fontcolor = white]
+		"dark hue 0.583" -- center [label = "210°"]
+		darkblue [fillcolor = darkblue]
+		darkblue -- center [label = "240°"]
+		"dark hue 0.750" [color = ".750 1 .6"]
+		"dark hue 0.750" -- center [label = "270°"]
+		darkmagenta [fillcolor = darkmagenta]
+		darkmagenta -- center [label = "300°"]
+		"dark hue 0.916" [color = ".916 1 .6"]
+		"dark hue 0.916" -- center [label = "330°"]
+	}
+	subgraph Tue {
+		node [width = 1.3]
+		"hue 0.083" -- brown
+		"hue 0.083" [color = ".083 1 1"]
+		"hue 0.125" [color = ".125 1 1"]
+		"hue 0.166" -- olive
+		"hue 0.166" [color = ".166 1 1"]
+		"hue 0.208" [color = ".208 1 1"]
+		"hue 0.250" -- darkolivegreen
+		"hue 0.250" [color = ".250 1 1"]
+		"hue 0.291" [color = ".291 1 1"]
+		"hue 0.333" -- darkgreen
+		"hue 0.333" [color = ".333 1 1"]
+		"hue 0.375" [color = ".375 1 1"]
+		"hue 0.416" -- "dark hue 0.416"
+		"hue 0.416" [color = ".416 1 1"]
+		"hue 0.458" [color = ".458 1 1"]
+		"hue 0.500" -- darkcyan
+		"hue 0.500" [color = ".500 1 1"]
+		"hue 0.541" [color = ".541 1 1"]
+		node [fontcolor = white]
+		"hue 0.000" [color = ".000 1 1"]
+		"hue 0.000" -- darkred
+		"hue 0.041" [color = ".041 1 1"]
+		"hue 0.583" -- "dark hue 0.583"
+		"hue 0.583" [color = ".583 1 1"]
+		"hue 0.625" [color = ".625 1 1"]
+		"hue 0.666" -- darkblue
+		"hue 0.666" [color = ".666 1 1"]
+		"hue 0.708" [color = ".708 1 1"]
+		"hue 0.750" -- "dark hue 0.750"
+		"hue 0.750" [color = ".750 1 1"]
+		"hue 0.791" [color = ".791 1 1"]
+		"hue 0.833" -- darkmagenta
+		"hue 0.833" [color = ".833 1 1"]
+		"hue 0.875" [color = ".875 1 1"]
+		"hue 0.916" -- "dark hue 0.916"
+		"hue 0.916" [color = ".916 1 1"]
+		"hue 0.958" [color = ".958 1 1"]
+		edge [len = 1]
+		"hue 0.000" -- "hue 0.041" -- "hue 0.083" -- "hue 0.125" -- "hue 0.166" -- "hue 0.208"
+		"hue 0.208" -- "hue 0.250" -- "hue 0.291" -- "hue 0.333" -- "hue 0.375" -- "hue 0.416"
+		"hue 0.416" -- "hue 0.458" -- "hue 0.500" --"hue 0.541" -- "hue 0.583" -- "hue 0.625"
+		"hue 0.625" -- "hue 0.666" -- "hue 0.708" -- "hue 0.750" -- "hue 0.791" -- "hue 0.833"
+		"hue 0.833" -- "hue 0.875" -- "hue 0.916" -- "hue 0.958" -- "hue 0.000"
+	}
+	subgraph Main_colors {
+		node [width = 2 fontsize = 20]
+		red [fillcolor = red fontcolor = white]
+		orangered [fillcolor = orangered]
+		orange [fillcolor = orange]
+		gold [fillcolor = gold]
+		yellow [fillcolor = yellow]
+		yellowgreen [fillcolor = yellowgreen]
+		deeppink [fillcolor = deeppink fontcolor = white]
+		fuchsia [label = "fuchsia\nmagenta" fillcolor = fuchsia fontcolor = white]
+		purple [fillcolor = purple fontcolor = white]
+		blue [fillcolor = blue fontcolor = white]
+		cornflowerblue [fillcolor = cornflowerblue]
+		deepskyblue [fillcolor = deepskyblue]
+		aqua [fillcolor = aqua label = "aqua\ncyan"]
+		springgreen [fillcolor = springgreen]
+		green [fillcolor = green]
+		purple -- fuchsia -- deeppink -- red
+		cornflowerblue -- blue -- purple
+		cornflowerblue -- deepskyblue -- aqua [len = 1.7]
+		aqua -- springgreen -- green -- yellowgreen -- yellow
+		yellow -- gold -- orange -- orangered -- red [len = 1.6]
+		orange -- "hue 0.083"
+		deeppink -- "hue 0.916"
+		deeppink -- "hue 0.875"
+		red -- "hue 0.000"
+		yellowgreen -- "hue 0.250"
+		blue -- "hue 0.666"
+		yellow -- "hue 0.166"
+		gold -- "hue 0.125"
+		green -- "hue 0.333"
+		springgreen -- "hue 0.416"
+		aqua -- "hue 0.500"
+		cornflowerblue -- "hue 0.583"
+		deepskyblue -- "hue 0.541"
+		purple -- "hue 0.791"
+		purple -- "hue 0.750"
+		fuchsia -- "hue 0.833"
+	}
+	subgraph Light_colors {
+		node [width = 2 fontsize = 20]
+		node [shape = circle width = 1.8]
+		edge [len = 2.1]
+		pink [fillcolor = pink]
+		pink -- red
+		lightyellow [fillcolor = lightyellow]
+		lightyellow -- yellow
+		mediumpurple [fillcolor = mediumpurple]
+		mediumpurple -- purple
+		violet [fillcolor = violet]
+		violet -- fuchsia
+		hotpink [fillcolor = hotpink]
+		hotpink -- deeppink
+		"light hue 0.250" [color = ".250 .2 1"]
+		"light hue 0.250" -- yellowgreen
+		lightcyan [fillcolor = lightcyan]
+		lightcyan -- aqua
+		lightslateblue [fillcolor = lightslateblue]
+		lightslateblue -- blue
+		lightgreen [fillcolor = lightgreen]
+		lightgreen -- green
+		lightskyblue [fillcolor = lightskyblue]
+		lightskyblue -- deepskyblue
+		peachpuff [fillcolor = peachpuff]
+		peachpuff -- orange
+		"light hue 0.416" [color = ".416 .2 1"]
+		"light hue 0.416" -- springgreen
+	}
+	subgraph Tints {
+		node [width = 1]
+		edge [len = 2.4]
+		"hue 0 tint" -- pink
+		"hue 0 tint" [color = "0 .1 1"]
+		"hue 0.041 tint" [color = ".041 .1 1"]
+		"hue 0.083 tint" -- peachpuff
+		"hue 0.083 tint" [color = ".083 .1 1"]
+		"hue 0.125 tint" [color = ".125 .1 1"]
+		"hue 0.166 tint" -- lightyellow
+		"hue 0.166 tint" [color = ".166 .1 1"]
+		"hue 0.208 tint" [color = ".208 .1 1"]
+		"hue 0.250 tint" -- "light hue 0.250"
+		"hue 0.250 tint" [color = ".250 .1 1"]
+		"hue 0.291 tint" [color = ".291 .1 1"]
+		"hue 0.333 tint" -- lightgreen
+		"hue 0.333 tint" [color = ".333 .1 1"]
+		"hue 0.375 tint" [color = ".375 .1 1"]
+		"hue 0.416 tint" -- "light hue 0.416"
+		"hue 0.416 tint" [color = ".416 .1 1"]
+		"hue 0.458 tint" [color = ".458 .1 1"]
+		"hue 0.5 tint" -- lightcyan
+		"hue 0.5 tint" [color = ".5 .1 1"]
+		"hue 0.541 tint" -- lightskyblue
+		"hue 0.541 tint" [color = ".541 .1 1"]
+		"hue 0.583 tint" [color = ".583 .1 1"]
+		"hue 0.625 tint" [color = ".625 .1 1"]
+		"hue 0.666 tint" -- lightslateblue
+		"hue 0.666 tint" [color = ".666 .1 1"]
+		"hue 0.708 tint" [color = ".708 .1 1"]
+		"hue 0.750 tint" -- mediumpurple
+		"hue 0.750 tint" [color = ".750 .1 1"]
+		"hue 0.791 tint" [color = ".791 .1 1"]
+		"hue 0.833 tint" -- violet
+		"hue 0.833 tint" [color = ".833 .1 1"]
+		"hue 0.875 tint" [color = ".875 .1 1"]
+		"hue 0.916 tint" -- hotpink
+		"hue 0.916 tint" [color = ".916 .1 1"]
+		"hue 0.958 tint" [color = ".958 .1 1"]
+		edge [len = 2]
+		"hue 0 tint" -- "hue 0.041 tint" -- "hue 0.083 tint" -- "hue 0.125 tint" -- "hue 0.166 tint" -- "hue 0.208 tint"
+		"hue 0.208 tint" -- "hue 0.250 tint" -- "hue 0.291 tint" -- "hue 0.333 tint" -- "hue 0.375 tint" -- "hue 0.416 tint"
+		"hue 0.416 tint" -- "hue 0.458 tint" -- "hue 0.5 tint" --"hue 0.541 tint" -- "hue 0.583 tint" -- "hue 0.625 tint"
+		"hue 0.625 tint" -- "hue 0.666 tint" -- "hue 0.708 tint" -- "hue 0.750 tint" -- "hue 0.791 tint" -- "hue 0.833 tint"
+		"hue 0.833 tint" -- "hue 0.875 tint" -- "hue 0.916 tint" -- "hue 0.958 tint" -- "hue 0 tint"
+	}
+	}
+''')