了解如何編寫移動平均策略和KDJ指標，以使用Tradingview中的鬆散腳本分析和預測庫存趨勢和價格模式的變化。
strategy("Yaonology Moving Average Tutoring", overlay=true, default_qty_type= strategy.percent_of_equity ,default_qty_value=100, currency=currency.USD, initial_capital=10000, commission_type=strategy.commission.percent, commission_value=0)
fst = input(title = “MA_Fast”, defval = 20)
slw = input(title = “MA_Slow”, defval = 40)
ma_fast = sma(close, fst)
ma_slow = sma(close, slw)
plot(ma_fast, color = color.blue)
plot(ma_slow, color = color.green)
if ma_fast > ma_slow
strategy.entry(id = “ma_long”, long = true)
if ma_slow > ma_fast
strategy.close(id = “ma_long”)
// KDJ Indicators
strategy(“Yaonology KDJ Indicators Tutorial”, overlay=false, default_qty_type = strategy.percent_of_equity, default_qty_value = 100, currency = currency.USD, initial_capital = 10000, commission_type = strategy.commission.percent, commission_value = 0)
prd = input(9, title=”period”)
sgnl = input(3, title=”signal”)
v(s,l,m) =>
v = 0.0
v := (m*s+(l-m)*nz(v[1]))/l
c = close
h = highest(high, prd)
l = lowest(low,prd)
RSV = 100*((c-l)/(h-l))
K = v(RSV, sgnl, 1)
D = v(K, sgnl, 1)
J = 3 * K-2 * D
plot(K, color = color.green)
plot(D, color = color.red)
plot(J, color = color.black)
if (K < 20 and D < 20 and J < 20 and K > D and K[1] < D[1]) or (J > 0 and J[1] < 0)
strategy.entry(id = “kd”, long = true)
if (K > 80 and D > 80 and J > 80 and K < D and K[1] > D[1]) or (J < 100 and J[1] > 100)
strategy.close(id = “kd”)
| The function sets a number of strategy properties | |
| Example | strategy(“Yaonology Moving Average Tutoring”, overlay=true, default_qty_type= strategy.percent_of_equity, default_qty_value = 100, currency = currency.USD, initial_capital = 10000, commission_type = strategy.commission.percent, commission_value = 0) |
| Details | overlay:
|
| User can see and edit inputs on the Format Object dialog of the script study | |
| Example | fst = input(title = “MA_Fast”, defval = “20”) |
| Details | title title of the input defval default value of the input valuable |
| The sma function returns the moving average | |
| Example | ma_fast = sma(close, fst) |
| Details | source(series) close : close price open: open price high: highest price lowe: lowest price length(integer) Number of bars |
| Plots a series of data on the chart | |
| Example | plot(ma_fast, color = color.blue) |
| Details | source(series) Series of data to be plotted color color of the plot. color = color.red color = #ff001a color = close >= open ? color.green : color.red |
| It is a command to enter market position | |
| Example | strategy.entry(id = “ma_long”, long = true) |
| Details | id A required parameter. The order identifier. long true: the strategy.entry for long false: the strategy.entry for short |
| It is a command to exit from the entry with the specified ID. | |
| Example | strategy.close(id = “ma_long”) |
| Details | id A required parameter. The order identifier. |
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