Untitled

//@version=5
indicator("BOLLINGERS", shorttitle="BOLS", overlay=true)

res = input.string(title="Bol1", defval="D")
res1 = input.string(title="Bol2", defval="W")
res2 = input.string(title="Bol3", defval="M")

len1 = input(defval=20)
dev1 = input(defval=1)

closePrice = request.security(syminfo.tickerid, res, close)[1]
closePrice1 = request.security(syminfo.tickerid, res1, close)[1]
closePrice2 = request.security(syminfo.tickerid, res2, close)[1]

[middle1, upper1, lower1] = ta.bb(closePrice, len1, dev1)
[middle2, upper2, lower2] = ta.bb(closePrice1, len1, dev1)
[middle3, upper3, lower3] = ta.bb(closePrice2, len1, dev1)

b1u = plot(upper1, color=#00bfff, title="GB", linewidth=1)
b2u = plot(upper2, color=color.orange, title="HB", linewidth=1)
b3u = plot(upper3, color=#551a8b, title="AB", linewidth=1)