[ADD] functions & types

07_FunctionPractice.jl

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+s = "GTCA"
+t = "TGAC"
+
+println(reverse("abc"))
+
+const complement = Dict('A' => 'T', 'C' => 'G', 'T' => 'A', 'G' => 'C')
+
+println(complement['T'])
+
+println([complement[c] for c in reverse(s)] |> join)
+
+println("ABCD" |> lowercase |> reverse)
+
+reverse_complement(s) = [complement[c] for c in reverse(s)] |> join
+
+s = readstring("text.txt")
+
+println(reverse_complement(s))
+
+"Find portion of DNA string containing C or G"
+cgcontent(dna::AbstractString) = count(x -> x in "CG",dna) / length(dna)
+
+println(cgcontent(s))

08_Types.jl

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+println(typeof(8))
+
+a = typeof(8)
+
+println(typeof(a))
+
+b = supertype(a)
+
+println(b)
+
+b = supertype(UInt64)
+println(b)
+
+c = supertype(b)
+println(c)
+
+println(subtypes(c))
+a = typeof(4)
+
+for i in 1:10
+    a =supertype(a)
+    println(a)
+end
+
+println(subtypes(Int64))
+
+println("A"^2)
+
+function showtypetree(T, level=0)
+    println("\t" ^ level, T)
+    for t in subtypes(T)
+        if t != Any
+            showtypetree(t, level+1)
+        end
+    end
+end
+
+println(fieldnames(5:2:8))
+println(typeof(5:2:8))
+
+d = Dict("one" => 1, "two" => 2, "three" => 3)
+println(typeof(d))
+
+println(fieldnames(d))
+
+println(d.count)
+println(d.vals)
+println(d.keys)