[R] NA or work around ??

[L.A.]

I've searched and tried several ideas (na.action. and other things), but I
can't see
to figure this out.
I'm guessing this is so simple I'll feel foolish for asking, but here goes.
Thanks,
L.A.

Dataset$Rcil=with(Dataset, ifelse(Rpr >= .95, Dataset[,"percentchgn"], NA))

Dataset$LLCI<-with(Dataset, ave(Rcil, LEAID, Property,
FUN=function(x)max(x)))


    LEAID      percentchgn Property    Rpr      Rcil     LLCI
12  2036       12.190220   UNSOLD  0.9999237 12.190220 16.09097
13  2036       14.741559   UNSOLD  0.9992714 14.741559 16.09097
14  2036       15.882518   UNSOLD  0.9955750 15.882518 16.09097
15  2036       16.090965   UNSOLD  0.9807892 16.090965 16.09097
34  2201       -6.542363   UNSOLD -1.0000000           NA         NA
55  2201       -5.060431   UNSOLD  0.9848659 -5.060431         NA
56  2201       -5.056231   UNSOLD  0.9699841 -5.056231         NA
57  2201       -4.994895   UNSOLD  0.9441028           NA         NA
58  2201       -4.982279   UNSOLD  0.9020456           NA         NA
99  2202       -8.982821   UNSOLD -1.0000000          NA          NA
241 2202        9.704573   UNSOLD -1.0000000          NA          NA
242 2202       10.447709   UNSOLD  0.9999237 10.447709        NA
243 2202       12.616943   UNSOLD  0.9992714 12.616943        NA
244 2202       12.943887     SOLD  0.9955750 12.943887          NA
245 2202       13.774406     SOLD  0.9807892 13.774406          NA
246 2202       15.007848     SOLD  0.9364319          NA           NA
333 2333        2.099854   UNSOLD  0.7853246         NA           NA 
333 2333        2.343452   UNSOLD  0.7853246         NA          NA   


What I'm trying to accomplish is:

    LEAID      percentchgn Property    Rpr      Rcil     LLCI
12  2036       12.190220   UNSOLD  0.9999237 12.190220 16.09097
13  2036       14.741559   UNSOLD  0.9992714 14.741559 16.09097
14  2036       15.882518   UNSOLD  0.9955750 15.882518 16.09097
15  2036       16.090965   UNSOLD  0.9807892 16.090965 16.09097
34  2201       -6.542363   UNSOLD -1.0000000           NA -5.056231
55  2201       -5.060431   UNSOLD  0.9848659 -5.060431 -5.056231
56  2201       -5.056231   UNSOLD  0.9699841 -5.056231 -5.056231
57  2201       -4.994895   UNSOLD  0.9441028           NA -5.056231
58  2201       -4.982279   UNSOLD  0.9020456           NA -5.056231
99  2202       -8.982821   UNSOLD -1.0000000          NA 12.616943
241 2202        9.704573   UNSOLD -1.0000000          NA 12.616943
242 2202       10.447709   UNSOLD  0.9999237 10.447709 12.616943
243 2202       12.616943   UNSOLD  0.9992714 12.616943 12.616943
244 2202       12.943887     SOLD  0.9955750   12.943887 13.774406
245 2202       13.774406     SOLD  0.9807892   13.774406 13.774406
246 2202       15.007848     SOLD  0.9364319             NA 13.774406
333 2333        2.099854   UNSOLD  0.7853246            NA        NA 
333 2333        2.343452   UNSOLD  0.7853246            NA        NA      
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