求助大佬!..Time variable is not numeric这样该怎么解决啊大佬们
is.numeric(ts)) {warning(messages[2]); return(zerovec)} # If the ts is too short, just return it and quit if((ts.length <- length(ts)) < min.length) {warning(messages[3]); return(ts)} ## Check that the Time variable is of class POSIXct if(class(cadairydata$Time)[[1]]...
A Fast Algorithm for the Two-Variable Integer Programming Problem We study the delocalization effect of a short-range repulsive interaction on the ground state of a finite density of spinless fermions in strongly disorder... Sidnie,Dresher,Feit - 《Journal of the Acm》 被引量: 46发表: 1984年...
表1:Summary of Parameters:总结了模型中的一些参数,包括响应变量、包含的变量、选择方法、选择标准、拟合方法以及是否存在多重共线性问题。 表2:Variables Type:列出了模型中各个变量的类型,包括因子型(factor)、二值型矩阵(nmatrix.2)和数...
Error: stat_count() must not be used with a y aesthetic. Error: StatBin requires a continuous x variable: the x variable is discrete.Perhaps you want stat=”count”? Error: unexpected ‘,’ in “,” Error: unexpected ‘}’ in X ...
NA is.na() as.na() double is.double() as.double() complex is.complex() as.complex() integer is.integer() as.integer() 例1 数据类型的判别与转换 > a <- 1:10 > is.numeric(a) [1] TRUE > is.integer(a) [1] TRUE > b<-as.character(a) > is.character(b) [1] TRUE 2.查看...
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Ashingleis a generalization of a factor to a continuous variable。A shingle consists of a numeric vector and a set of intervals。The intervals are allowed to overlap (much likeroof shingles; hence the name "shingles")。Shingles在lattice包中被广泛使用。they allow you to easily use a continuous...
If you have complete control over the data, one solution is to make sure that the vector you are using in the mean() function contains only a numeric variable or logical values. In such cases, this may mean manually removingbadvalues and filtering missing data. Alternatively, you can use ...
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