73 lines
2.4 KiB
Markdown
73 lines
2.4 KiB
Markdown
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# ArrayIsSeries
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The function checks whether an array is a timeseries.
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```
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bool ArrayIsSeries(
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const void& array[] // checked array
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);
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```
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Parameters
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array[]
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[in] Checked array.
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Return Value
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It returns true, if a checked array is an array timeseries, otherwise it returns false. Arrays passed as a parameter to the [OnCalculate()](/en/docs/basis/function/events#oncalculate2) function must be checked for the order of accessing the array elements by [ArrayGetAsSeries()](/en/docs/array/arraygetasseries).
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Example:
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```
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#property indicator_chart_window
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#property indicator_buffers 1
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#property indicator_plots 1
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//---- plot Label1
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#property indicator_label1 "Label1"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrRed
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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//--- indicator buffers
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double Label1Buffer[];
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function |
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//+------------------------------------------------------------------+
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void OnInit()
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{
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//--- indicator buffers mapping
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SetIndexBuffer(0,Label1Buffer,INDICATOR_DATA);
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//---
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}
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//+------------------------------------------------------------------+
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//| Custom indicator iteration function |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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//---
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if(ArrayIsSeries(open))
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Print("open[] is timeseries");
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else
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Print("open[] is not timeseries!!!");
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//--- return value of prev_calculated for next call
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return(rates_total);
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}
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```
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See also
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[Access to timeseries and indicators](/en/docs/series)
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