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One of the indicator lines is not visible

I am righting a new indicator, i have added 3 line and one color buffer , but one of the lines not showing The code: #property indicator_chart_window #property indicator_buffers 4 #property indicator_plots 3 #property indicator_color1 clrBlue , clrCrimson input int ma_period = 14 ; int maHandle;

use OnCalculate with expert advisor

Hello, I have a source code for an indicator, and I want to use it as an Expert advisor, but the problem i have that OnCalculate doesn't called automatically . int OnCalculate ( const int rates_total, const int prev_calculated, const int begin, const