ID with NR4

[J123]

Hi, I'm looking to expand the code below to distinguish between standard inside day bars and inside days which are also nr4 (narrowest range of the past 4 days). As it stands it will id all nr7, wr7, id & id with nr7. Can anyone please help me to add this condition to the code?



/************************************************** **************************************************
Copyright ?eSignal, a division of Interactive Data Corporation. 2002. All rights reserved.
This sample eSignal Formula Script (EFS) may be modified and saved under a new
filename; however, eSignal is no longer responsible for the functionality once modified.
eSignal reserves the right to modify and overwrite this EFS file with each new release.
************************************************** ************************************************** */
var lowSoFar = Number.MAX_VALUE;
var highSoFar = Number.MIN_VALUE;

function preMain() {
setPriceStudy(true);
setColorPriceBars(true);
setDefaultPriceBarColor(Color.grey);
setStudyTitle(" ");
setShowCursorLabel(false);
}

function main() {
var vHigh = high();
var vLow = low();
var vPrevHigh = high(-1);
var vPrevLow = low(-1);

if(vHigh == null || vLow == null || vPrevHigh == null || vPrevLow == null) {
return;
}

if (vHigh > vPrevHigh && vLow > vPrevLow) {
setPriceBarColor(Color.RGB(0, 0xCC, 0));
} else if (vHigh < vPrevHigh & vLow < vPrevLow) {
setPriceBarColor(Color.red);
} else if (vHigh > vPrevHigh && vLow < vPrevLow) {
setPriceBarColor(Color.blue);
} else if (vHigh < vPrevHigh && vLow > vPrevLow) {
setPriceBarColor(Color.RGB(255, 173, 92));
}

if (getInterval() == "D" || getInterval() == "W" || getInterval() == "M") {
// check for NR7 or WR7 days.
var vHigh = getValue("High", 0, -7);
var vLow = getValue("Low", 0, -7);
var i;
NR = 0;
WR = 0;

for(i = 0; i < 7; i++){
WR = Math.max(WR, vHigh[i] - vLow[i]);
if(i == 0)
NR = vHigh[i] - vLow[i];
else
NR = Math.min(NR, vHigh[i] - vLow[i]);
}
if(vHigh[0] - vLow[0] == NR) {
drawShapeAbsolute(getCurrentBarIndex(), high() + NR/2, Shape.DIAMOND, "", Color.red, Shape.TOP, getCurrentBarIndex());
} else if(vHigh[0] - vLow[0] == WR) {
drawShapeAbsolute(getCurrentBarIndex(), high() + NR/2, Shape.DIAMOND, "", Color.blue, Shape.TOP, getCurrentBarIndex());
}
}

return;
}