Sounds based on last bar close

[kevin]

I've just seen tickstrike.com and pricesquawk.com. They play a small sound everytime there's a buy or a sell.
I'm curious if i can get TOS to play a sound if the present tick or close of the 1 minute bar is higher or lower than the last close.

#### comments

def last = If IsNan(close[-1]) then 1 else close[-1] ;

Alert(close >= last, " close"+ close + " >= last " + last, Alert.TICK, Sound.Ding);
Alert(close < last, "close < last Tick", Alert.TICK, Sound.Chimes);

My code doesn't work because I can't seem to see what close[-1] is...
I'm not experienced with this language....
the chart is SPY and 1 minute if that matters

 

[merryDay]

I've just seen tickstrike.com and pricesquawk.com. They play a small sound everytime there's a buy or a sell.
I'm curious if i can get TOS to play a sound if the present tick or close of the 1 minute bar is higher or lower than the last close.

#### comments

def last = If IsNan(close[-1]) then 1 else close[-1] ;

Alert(close >= last, " close"+ close + " >= last " + last, Alert.TICK, Sound.Ding);
Alert(close < last, "close < last Tick", Alert.TICK, Sound.Chimes);

My code doesn't work because I can't seem to see what close[-1] is...
I'm not experienced with this language....
the chart is SPY and 1 minute if that matters

[-1] refers to future bars not previous bars
[1] refers to previous bars

Alert(close >= close[1], "ding", alert.tick, Sound.ding);