9 ema cross vwap above ema 200

[Respbid]

Hello .I am trying to find a scan that will show stocks that 9 ema cross vwap and crosses happens above 200 Ema for buy and for sell the opposite. 9 ema crosses below vwap and it happens below 200 Ema along with volume spike indicator. Does the below coding looks ok 9 ema cross vwap and crosses happen above 200 Ema. Plus edit as needed, thanks
input length = 9; // Length of the 9 EMA
input length200 = 200; // Length of the 200 EMA

def ema9 = ExpAverage(close, length);
def vwapValue = VWAP();
def ema200 = ExpAverage(close, length200);

plot scan = ema9 > ema200 and ema9 crosses above vwapValue;
Can some one please help ? thanks

 

[autolox]

The issue I see is that your comments will likely trigger an error since Thinkscript uses "#" (shift and number 3) for comments.

I haven't worked with vwap very much, but your EMA work looks fine. If you load it and get errors, that's part of the learning process as well, so, don't hesitate. Go for it!! Just like Edison with the light bulb, finding what doesn't work is just as important...

Something I like to do personally and you certainly do not have to follow is that when I'm using multiple MAs, for the inputs I might name them something like "shortMA" and "longMA" simply because I have color combinations I prefer and it also doesn't "tie" a perception of an input needing to be a particular value. Again, just a personal preference of mine that you are in no way obligated to follow, I've just found that helpful for myself...