R 语言中的 unique() 函数用于从向量、 DataFrame 或数组中删除重复的元素/行。 用法:unique(x) 参数: x:向量、 DataFrame 、数组或 NULL 范例1: #R program to illustrate#uniquefunction#Initializing somesetof numbersx <- c(1:10, 5:9) x#Callingunique()functiontoprint#uniquesetof numbersunique(x)...
[1] "a" "a$1" "a$2" nidhi_bietMake Elements of a Vector Unique in R Programming – make.unique() Function。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。
Write a R program to find elements come only once that are common to both given data frames.Sample Solution:R Programming Code:# Create the first vector 'a' with elements "a", "b", "c", "d", "e" a = c("a", "b", "c", "d", "e") # Create the second vector 'b' with...
Example 2: Debug the Error in unique.default(x, nmax = nmax) : unique() applies only to vectors The following R programming syntax illustrates how to avoid the “Error in unique.default(x, nmax = nmax) : unique() applies only to vectors” when using the ave function. ...
unique function in R –unique(), eliminates duplicate elements/rows from a vector, data frame or array. unique values of a vector. Unique values of a matrix and unique rows of the dataframe in R is obtained by using unique() function in R. we will looking at the following example which...
While error messages are a part of the programming process, they can be even more annoying when they come across as complete gibberish. This problem is even worse when it still looks like gibberish after you learn what is going on. The “error in unique.default(x, ...
J. BlaekK. WantochR. SterryJ. KirkpatrickJournal of the NACAA
;; Count Items - Lee Mac;; Returns a list of dotted pairs detailing the number of;; occurrences of each item in a supplied list.(defunLM:CountItems(l/c l r x)(whilel(setqx(carl)c(lengthl)l(vl-removex(cdrl))r(cons(consx(-c(lengthl)))r)))(reverser)) ...
Example 1: Reproduce the Error in cut.default : ‘breaks’ are not unique This example shows how to replicate the “Error in cut.default : ‘breaks’ are not unique” in the R programming language. Let’s assume that we want to split our vector object by certain breaksusing the cut fun...
[0 for __ in range(n)] for __ in range(m)] # 初始化,所有为0 # 第一个可以走设置为1 dp[0][0] = 1 # 检查第一行和第一列是否有障碍 for i in range(1, m): dp[i][0] = dp[i - 1][0] if obstacleGrid[i][0] == 0 else 0 for j in range(1, n): dp[0][j] =...