livedemo

material/1_mon/firststeps/livedemo/functions.jl

@@ -0,0 +1,128 @@
+myarray = zeros(Float64,6)
+for k = 1:length(myarray)
+    if iseven(k)
+        myarray[k] = sum(myarray[1:k])
+    elseif k == 5
+        myarray = myarray .- 1
+    else 
+        myarray[k] = 5
+
+    end
+end
+##---
+function myfunction()
+    return "string",1.0
+end
+
+function myfunction(a; c="keyword",kwargs...)
+    # body
+    return a,b,c
+end
+
+anonym = (x,y) -> x+y
+
+function mylongfunction(x)
+    return x^2
+end
+myshortfunction(x) = x^2
+
+myfunction(args...;kwargs...) = myotherfunction(1.0,"mystring",args...;kwargs...)
+
+#---
+a = [1,2,3]
+a[1]+a[2]+a[3]
++(a[1],a[2],a[3])
++(a...)
+
+function mybinary(args...)
+    res = true
+    for k = 1:length(args)
+        res = res & args[k] 
+    end
+    return res
+end
+
+#---
+nothing # None
+NaN
+missing
+#---
+a = [1,2,3,4,5]
+sqrt.(a)
+a .+ a 
+#---
+a = [1,2,3,4,5]
+b = [6,7,8,9,10]
+c = (a.^2 .+ sqrt.(a) .+ log.(a.*b))./5
+#---
+tmp1 = a .* b
+tmp2 = log.(tmp1)
+tmp3 = sqrt.(a)
+tmp4 = tmp2 + tmp3 
+...
+output = tmpX./5
+
+c = similar(a)
+for k = 1:length(a)
+    c[k] = (a[k]^2 + sqrt(a[k]) + log(a[k]*b[k]))/5
+end
+#---
+#import LinearAlgebra
+import LinearAlgebra.qr as test3
+using LinearAlgebra
+
+A = Matrix{Float64}(undef,11,22)
+B = Array{Float64,2}(undef,22,33)
+C = rand(30,100)
+D = rand(100,50)
+
+qr(C*D)
+@time svd(C)
+g = x -> 2*x
+h = x -> 2*x
+i = x -> 2*x
+h(C);
+@time svd(g(C));
+@time svd(i(C));
+#---
+function myfunction(A::Int64)
+    b::Vector = A[1,:]
+    
+    return A^2
+end
+
+#---
+function rse_tstat(x;σ = rse_std(x),var=σ^2)
+    return rse_mean(x) / (σ / sqrt(length(x)))
+end
+#---
+β = 1
+🎈 = "bla"
+# \beta + TAB
+a = "this is a string"
+'this is a string?'
+join('A':'F')
+A = "one"
+B = " two"
+A * B
+#---
+
+module MyStatsPackage
+    struct Bla
+        newfield
+    end
+    include("myscope.jl")
+    import Base: length
+    Base.length(s::SimulationResult) = 100
+    export SimulationResults
+end
+
+using .MyStatsPackage
+
+#---
+@kwdef 
+@which sum([1,2,3])
+@which(sum([1,2,3]))
+a = [1,2,3]
+println("a is $a")
+@debug a

material/1_mon/firststeps/livedemo/myscope.jl

@@ -0,0 +1,35 @@
+a = zeros(10)
+for k = 1:10
+    a[k] = k
+end
+a
+#---
+# composite type
+# abstract type
+
+struct SimulationResults
+    parameters
+    results::Union{Nothing,Int}
+end
+function SimulationResults(params)
+        results = rand(100)*params[1]
+        return SimulationResults(params,results)
+end
+
+
+
+
+function print(s::NamedTuple)
+println("hey, please use SimulationResults next time ;)")
+end
+
+import Base: show
+function Base.show(io::IO,s::SimulationResults)
+    println(io,"The following simulation was run:")
+    println(io,"Parameters: ",s.parameters)
+    println(io,"And we got results!")
+    println(io,"Results: ",s.results[1])
+end
+#---
+
+