Hello. I am wondering why I am getting NA for all
in cors=sapply(pred,cor,y=resp). I suppose that each column in pred has NAs in
them. Is there some way to fix this? Thanks
> str(pred)
'data.frame': 200 obs. of 13 variables:
$ mnO2: num 9.8 8 11.4 4.8 9 13.1 10.3 10.6 3.4 9.9 ...
$ Cl : num 60.8 57.8 40 77.4 55.4 ...
$ NO3 : num 6.24 1.29 5.33 2.3 10.42 ...
$ NH4 : num 578 370 346.7 98.2 233.7 ...
$ oPO4: num 105 428.8 125.7 61.2 58.2 ...
$ PO4 : num 170 558.8 187.1 138.7 97.6 ...
$ Chla: num 50 1.3 15.6 1.4 10.5 ...
$ a1 : num 0 1.4 3.3 3.1 9.2 15.1 2.4 18.2 25.4 17 ...
$ a2 : num 0 7.6 53.6 41 2.9 14.6 1.2 1.6 5.4 0 ...
$ a3 : num 0 4.8 1.9 18.9 7.5 1.4 3.2 0 2.5 0 ...
$ a4 : num 0 1.9 0 0 0 0 3.9 0 0 2.9 ...
$ a5 : num 34.2 6.7 0 1.4 7.5 22.5 5.8 5.5 0 0 ...
$ a6 : num 8.3 0 0 0 4.1 12.6 6.8 8.7 0 0 ...
> str(y=resp)
Error in length(object) : 'object' is missing
> str(resp)
num [1:200] 8 8.35 8.1 8.07 8.06 8.25 8.15 8.05 8.7 7.93 ...
> cors=sapply(pred,cor,y=resp)
> cors
mnO2 Cl NO3 NH4 oPO4 PO4 Chla a1 a2 a3 a4 a5 a6
NA NA NA NA NA NA NA NA NA NA NA NA NA
>
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