MQL4 Reference Array Functions ArrayIsSeries
ArrayIsSeries
The function checks whether an array is a timeseries.
bool ArrayIsSeries(
const void& array[]
); |
Parameters
array[]
[in] Checked array.
Return Value
Example:
#property indicator_chart_window
#property indicator_buffers 1
//---- plot Label1
#property indicator_label1 "Label1"
#property indicator_type1 DRAW_LINE
#property indicator_color1 clrRed
#property indicator_style1 STYLE_SOLID
#property indicator_width1 1
//--- indicator buffers
double Label1Buffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
void OnInit()
{
//--- indicator buffers mapping
SetIndexBuffer(0,Label1Buffer,INDICATOR_DATA);
//---
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const datetime &time[],
const double &open[],
const double &high[],
const double &low[],
const double &close[],
const long &tick_volume[],
const long &volume[],
const int &spread[])
{
//---
if(ArrayIsSeries(open))
Print("open[] is timeseries");
else
Print("open[] is not timeseries!!!");
//--- return value of prev_calculated for next call
return(rates_total);
} |
See also
Access to timeseries and indicators
|