[英]Storing results in a for loop as a vector (r)
我有以下輸出100個對象的函數。 由於對R的了解有限,我試圖將其作為矢量輸出,但沒有運氣。
corr <- function(...){
for (i in 1:100){
a <- as.vector(cor_cophenetic(dend03$dend[[i]],dend01$dend[[2]]))
print(a)
}
}
corr(a)
哪個命令將其作為矢量輸出? 當前輸出看起來像
[1] 0.9232859
[1] 0.9373974
[1] 0.9142569
[1] 0.8370845
:
:
[1] 0.9937693
樣本數據:
> dend03
$hcr
$hcr[[1]]
Call:
hclust(d = d, method = "complete")
Cluster method : complete
Number of objects: 30
$dend
$dend[[1]]
'dendrogram' with 2 branches and 30 members total, at height 1
$dend[[2]]
'dendrogram' with 2 branches and 30 members total, at height 1
OP的代碼存在的問題是該函數不會返回矢量,而是在迭代的每個點將值打印到控制台。
corr <- function(...) {
a <- vector("double", length = 100) # initialse a vector of type double
for (i in seq_len(n)) {
a[[i]] <- cor_cophenetic(dend03$dend[[i]],
dend01$dend[[2]])) # fill in the value at each iteration
}
return(a) # return the result
}
corr(a)
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