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我的數據幀的結構是這樣的:轉換間隔數字
'data.frame': 74 obs. of 7 variables:
$ Scientific_Name : Factor w/ 74 levels "Aesculus glabra",..: 1 2 3 4 5 6 7 8 9 10 ...
$ Endangered.or.threatened : int 0 0 1 0 1 1 0 1 1 0 ...
$ Lat_spread : num 12.95 1.22 13.18 11.23 15.74 ...
$ Restricted_range : int 0 0 0 1 0 1 0 1 0 0 ...
$ Available : int 1 1 0 1 1 0 0 0 0 1 ...
$ Abiotic_adapted_not_including_availability: int 4 NA 3 3 4 3 4 4 4 4 ...
$ Dispersal_score : int 5 NA 2 2 9 2 4 1 5 4 ...
我想使整列到數字載體。這是我的代碼:
> RestrictedY <- subset(Status_restricted_Wilcox, Endangered.or.threatened == 1, select = Restricted_range)
> RestrictedY <- as.vector(RestrictedY)
> RestrictedY <- as.numeric(RestrictedY)
Error: (list) object cannot be coerced to type 'double'
> Status_restricted_Wilcox <- read.csv("~/Documents/Honours_data_analysis/Status_restricted_Wilcox.csv", na.strings="NA_integer_")
> View(Status_restricted_Wilcox)
> RestrictedY <- subset(Status_restricted_Wilcox, Endangered.or.threatened == 1, select = Restricted_range)
> RestrictedY <- as.vector(RestrictedY)
> RestrictedY <- as.numeric(RestrictedY)
Error: (list) object cannot be coerced to type 'double'
我在做什麼錯?我的錯誤是作爲「雙重」出現的,但我不明白這件事是什麼。 謝謝!