How to format numbers with commas using table1

How can I format table1 columns with comma format? The sample data below has fewer rows and it does not display big values that require commas because I can't post my huge dataset. I wonder if someone could help comma format the Winter row values of the table. Example below:

library(table1)
dat <- structure(list(StationCode = c("Gate 6", "Gate 7", "Gate 6", 
"Gate 7", "Gate 8", "Gate 8", "Gate 8", "Gate 7", "Gate 8", "Gate 7", 
"Gate 6", "Gate 8", "Gate 6", "Gate 8", "Gate 7", "Gate 7", "Gate 7", 
"Gate 7", "Gate 6", "Gate 8", "Gate 6", "Gate 3", "Gate 6", "Gate 6", 
"Gate 8", "Gate 8", "Gate 6", "Gate 8", "Gate 8", "Gate 7", "Gate 6", 
"Gate 7", "Gate 6", "Gate 8", "Gate 3"), SampleDate = structure(c(15387, 
15638, 15627, 15639, 15647, 15683, 15617, 15384, 15633, 15592, 
15627, 15688, 15370, 15660, 15657, 15688, 15650, 15366, 15662, 
15537, 15609, 15635, 15649, 15656, 15637, 15643, 15626, 15653, 
15393, 15627, 15626, 15684, 15632, 15612, 15593), class = "Date"), 
    WaterTemperature = c(49.2000007629395, 53.5, 55.5, 53.5, 
    54.7000007629395, 50.2000007629395, 57.0999984741211, 49.5999984741211, 
    55.4000015258789, 57.9000015258789, 55.5, 48.2999992370605, 
    48.5999984741211, 53, 52.0999984741211, 48.2999992370605, 
    55.4000015258789, 48.7000007629395, 52.7000007629395, 57, 
    56.7999992370605, 53.7000007629395, 55.5, 51.5, 53, 55.0999984741211, 
    54.5, 51.7999992370605, 50.7999992370605, 55.5, 54.5, 51, 
    55.7000007629395, 57.0999984741211, 57.7000007629395), Turbidity = c(2.0699999332428, 
    1.17999994754791, 1.48000001907349, 1.22000002861023, 1.45000004768372, 
    14.3000001907349, 1.16999995708466, 6.53000020980835, 1.14999997615814, 
    1.01999998092651, 1.48000001907349, 14, 2.70000004768372, 
    1.13999998569489, 1.28999996185303, 13.8999996185303, 1.29999995231628, 
    9.9399995803833, 48.7999992370605, 1.98000001907349, 0.980000019073486, 
    1.51999998092651, 1.1599999666214, 1.07000005245209, 1.36000001430511, 
    1.67999994754791, 0.959999978542328, 1.03999996185303, 2.58999991416931, 
    0.779999971389771, 0.959999978542328, 7.46999979019165, 0.899999976158142, 
    1.37000000476837, 1.64999997615814), ForkLength = c(95, 62, 
    57, 47, 65, 49, 33, 76, 39, 38, 38, 60, 90, 60, 55, 58, 67, 
    121, 44, 32, 39, 57, 43, 49, 52, 52, 55, 45, 83, 36, 33, 
    81, 58, 33, 32), Count = c(1230, 3, 1, 2, 1, 1, 4, 1, 7, 1, 
    7, 1, 2356, 2, 10, 1, 2, 1, 6, 1, 1, 1, 1599, 5, 2, 1, 1, 3, 1, 
    26, 2, 1, 3, 3, 1), year = c("2012", "2012", "2012", "2012", 
    "2012", "2012", "2012", "2012", "2012", "2012", "2012", "2012", 
    "2012", "2012", "2012", "2012", "2012", "2012", "2012", "2012", 
    "2012", "2012", "2012", "2012", "2012", "2012", "2012", "2012", 
    "2012", "2012", "2012", "2012", "2012", "2012", "2012"), 
    race2 = c("Winter", "Winter", "Winter", "Winter", "Winter", 
    "Winter", "Winter", "Winter", "Winter", "Winter", "Winter", 
    "Winter", "Winter", "Winter", "Winter", "Winter", "Winter", 
    "Winter", "Winter", "Winter", "Winter", "Winter", "Winter", 
    "Winter", "Winter", "Winter", "Winter", "Winter", "Winter", 
    "Winter", "Winter", "Winter", "Winter", "Winter", "Winter"
    ), week = c("07", "43", "41", "43", "44", "49", "40", "07", 
    "42", "36", "41", "50", "05", "46", "46", "50", "45", "04", 
    "46", "29", "39", "43", "45", "46", "43", "44", "41", "45", 
    "08", "41", "41", "50", "42", "39", "37"), month = c("February", 
    "October", "October", "October", "November", "December", 
    "October", "February", "October", "September", "October", 
    "December", "January", "November", "November", "December", 
    "November", "January", "November", "July", "September", "October", 
    "November", "November", "October", "October", "October", 
    "November", "February", "October", "October", "December", 
    "October", "September", "September")), row.names = c(NA, 
35L), class = "data.frame")

table1(~ race2 + ForkLength|StationCode, data = dat, droplevels = F, overall = "Overall" ,caption="Summary Table")

library(table1)

set.seed(42)
dat <- data.frame(
    Group = factor(rep(c("Treatment", "Control"), each = 50000)),
    Count = round(rnorm(100000, 50, 15)),
    Category = factor(sample(c("A", "B", "C"), 100000, replace = TRUE))
)

comma_format <- function(x) {
  with(stats.default(x), 
       sprintf("%s ± %s", 
               prettyNum(round(MEAN, 1), big.mark = ","),
               prettyNum(round(SD, 1), big.mark = ",")))
}

comma_categorical <- function(x) {
  c("", sapply(stats.default(x), function(y) with(y,
    sprintf("%s (%s%%)", 
            prettyNum(FREQ, big.mark = ","),
            format(round(PCT, 1), nsmall = 1)))))
}

table1(~ Group + Count | Category, data = dat,
       render.continuous = comma_format, 
       render.categorical = comma_categorical,
       droplevels = F, overall = "Overall", caption = "Summary Table") 

^{Created on 2025-06-03 with reprex v2.1.1}