3
For this kind of presentation which data and graphic are static (doesn't change), I suggest TabView:
Initials:
covid = ResourceData["Epidemic Data for Novel Coronavirus COVID-19",
"WorldCountries"];
cAsia = {"Kazakhstan", "Kyrgyzstan", "Tajikistan", "Turkmenistan", "Uzbekistan"};
...
3
Use InputForm to examine the output of your code, not just how it formats:
(*In*)
InputForm @ Block[{G},
G[x_] := x;
DynamicModule[{x}, Manipulate[G @ x, {{x, -1}, -1, 1}]]
]
(*Out*)
DynamicModule[{x}, Manipulate[G[x], {{x, -1}, -1, 1}], DynamicModuleValues :> {}]
You see that the Block evaluated and returned a DynamicModule, as should be ...
3
You can use a different construction to create multiple Locators:
Manipulate[
Graphics[Circle[], PlotRange -> 2], {{pt, {{0, 1}, {1, 0}}},
Locator,
TrackingFunction -> (p |-> {
pt[[1]] = Normalize[p[[1]]],
pt[[2]] = p[[2]]/Max[Norm[p[[2]]], 1]}
)}]
In this case, pt is a list of the locations of each Locator. Our ...
2
Manipulate[list,
{{ele, 1}, Range[5], TrackingFunction -> (ele = #; AppendTo[list, ele]; &)},
{{list, {ele}}, None}]
1
This might be what you're looking for:
f[n_, c_]:=With[
{
expr = Table[Symbol[c<>ToString[i]] x^i,{i,n}],
controls = Sequence@@Table[{Symbol[c<>ToString[i]], 0, 1}, {i, n}]
},
Manipulate[Plot[expr, {x, 1, 3}], controls]
]
f[3, "a"] will then give you a manipulate with a1, a2, a3.
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