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Docs/Samples/TradeOncePerBar.md

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+# Best Way to Code Trade Once per Bar at Open on MT4
+
+So there are various ways to code an EA to trade once per bar.
+
+```mq4
+int BarsCount = 0;
+if (Bars>BarsCount) {
+    Do the algo and then
+    BarsCount = Bars;
+}
+```
+
+```mq4
+static datetime prevtime = 0;
+if(prevtime == Time[0]) return;
+prevtime = Time[0];
+Do the algo here after the code
+```
+
+```mq4
+if (Time[0] >= TimeCurrent()) {
+    Do the algo here
+}
+```
+
+```mq4
+int BarsCount = 0
+if (Bars>BarsCount) etc.
+```
+
+```mq4
+static datetime prevtime = Time[0];
+if (prevtime == Time[0]) return;
+prevtime = Time[0];
+```
+
+```mq4
+```