Writing to Spreadsheet issues

I am having trouble with this code:

trOne <- read.csv("*.csv", header=TRUE)
srOne <- read.csv("*/SRdivision1.csv", header=TRUE)
row = 1

for (g in 1:162) {
e = trOne[g, "END_TIME"]
s = trOne[g, "START_TIME"]
q = trOne[g, "OCC_TIME"]
r = trOne[g, "R_TIME"]
gazeSum = 0
n = 0
print(g)

while (s <= e) {

if (srOne[row, "timestamp"] == 670920) {
print(srOne[row, "timestamp"]) }

if (r == srOne[row, "timestamp"] ) {
trOne[g, "R_EYE_POS"] = srOne[row, "LEFT_GAZE_X"] }

if (q == srOne[row, "timestamp"] ) {
trOne[g, "OCC_EYE_POS"] = srOne[row, "LEFT_GAZE_X"] }

if (s >= q & s <= r) {
gazeSum = gazeSum + as.double(srOne[row, "LEFT_GAZE_X"])
n = n + 1 }

s = s + 1
row = row + 1
}
trOne[g, "AVG_EYE_POS"] = gazeSum / n
}

The code runs well, but there is an issue with this:
Error in if (srOne[row, "timestamp"] == 670920) { :
 missing value where TRUE/FALSE needed

That is just a line for debugging, but it means the if statement below it
isn't working right if I get the error. It only does this when I write to
file. The only unique thing in this case is that I know the line with
670920 as the timestamp has the Left_Gaze_X as 0 (as it should be) but the
comparison being made is screwy after this row. The error shows up at this
line, which is when g = 162. I have another file I used to get the rest of
my data (SRDivision2), it calculates that incorrectly, Everything works
fine before g = 162, though.

After 162, when I make g 163:165, the Left_Gaze_X is correct, but when I
set Occ_Eye_Pos equal to it, it equals a totally different number. For
instance, the Gaze outputs as 488.3 when I print it, but when I set
Occ_Eye_Pos equal to it, the value of Occ_Eye_Pos is 2838...

Anyone know what's going on with this?