I am trying to get R to resample my dataset of two columns of age and length
data for fish. I got it to work, but it is not resampling every replicate.
Instead, it resamples my data once and then repeated it 5 times.
Here is my dataset of 9 fish samples with an age and length for each one:
Age Length
2 200
5 450
6 600
7 702
8 798
5 453
4 399
1 120
2 202
Here is my code which resamples my data to produce up to 9 different samples
and creates a new dataset of 12 samples:
testdat<-growth[sample(9,12,replace=T),]
Now I want R to repeat this procedure 5 times. Here is my code:
testdat2 <- replicate(5, sample(testdat), simplify=F)
testdat2
Here is my output showing that it did it once and then just repeated the
values:
> testdat2
[[1]]
Age Length
1 2 200
9 2 202
8 1 120
5 8 798
4 7 702
6 5 453
1.1 2 200
4.1 7 702
4.2 7 702
5.1 8 798
4.3 7 702
6.1 5 453
[[2]]
Age Length
1 2 200
9 2 202
8 1 120
5 8 798
4 7 702
6 5 453
1.1 2 200
4.1 7 702
4.2 7 702
5.1 8 798
4.3 7 702
6.1 5 453
[[3]]
Age Length
1 2 200
9 2 202
8 1 120
5 8 798
4 7 702
6 5 453
1.1 2 200
4.1 7 702
4.2 7 702
5.1 8 798
4.3 7 702
6.1 5 453
[[4]]
Length Age
1 200 2
9 202 2
8 120 1
5 798 8
4 702 7
6 453 5
1.1 200 2
4.1 702 7
4.2 702 7
5.1 798 8
4.3 702 7
6.1 453 5
[[5]]
Length Age
1 200 2
9 202 2
8 120 1
5 798 8
4 702 7
6 453 5
1.1 200 2
4.1 702 7
4.2 702 7
5.1 798 8
4.3 702 7
6.1 453 5
Any advice on how to get R to resample each time would be greatly
appreciated?
Mike
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