r data frame dim
由於向量和因子都只能儲存一種元素，使用上彈性較不足，在R語言中，有一彈性很大 ... StuDF <- data.frame(StuID=c(1,2,3,4,5), ##欄位名稱=欄位值 name=c("小明"," ... 透過 dim() 函數可顯示資料框列與行的長度，與 dimnames() 相同，先顯示列，後 ... ,an R object, for example a matrix, array or data frame. value. For the default method, either NULL or a numeric vector, which is coerced to integer (by truncation). ,The dim function of the R programming language returns the dimension (e.g. the number of columns and ... ,an R object, for example a matrix, array or data frame. value. For the default method, either NULL or a numeric vector, which is coerced to integer (by truncation). , Just create a data frame of empty vectors: collect1 <- data.frame(id = character(0), max1 = numeric(0), max2 = numeric(0)). But if you know how ...,> dim(X). [1] 3 4. Dimension, dim(X), is an integer vector giving the number of rows and columns. Page 5. Objects that Hold Data. Matrix Entries, Rows, ... , data.frame 屬於R 特有的資料結構，因為有此結構使R相對比其他程式 ... nrow( ) -> 觀察列的數量; ncol( ) -> 觀察行的數量; dim( ) -> 同時看行列的 ...,an R object, for example a matrix, array or data frame. value, For the default method, either NULL or a numeric vector which coerced to integer (by truncation). ,an R object, for example a matrix, array or data frame. value, For the default method, either NULL or a numeric vector which coerced to integer (by truncation). ,nrow base}, R Documentation ... a vector, array, data frame, or NULL . ... ma <- matrix(1:12, 3, 4) nrow(ma) # 3 ncol(ma) # 4 ncol(array(1:24, dim = 2:4)) # 3, the ...
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 r data frame dim 相關參考資料
2 R 資料結構| 資料科學與R語言 - 曾意儒Yi-Ju Tseng
由於向量和因子都只能儲存一種元素，使用上彈性較不足，在R語言中，有一彈性很大 ... StuDF <- data.frame(StuID=c(1,2,3,4,5), ##欄位名稱=欄位值 name=c("小明"," ... 透過 dim() 函數可顯示資料框列與行的長度，與 dimnames() 相同，先顯示列，後 ... https://yijutseng.github.io dim function | R Documentation
an R object, for example a matrix, array or data frame. value. For the default method, either NULL or a numeric vector, which is coerced to integer (by truncation). https://www.rdocumentation.org dim in R Programming (4 Examples for the Dimension Function)
The dim function of the R programming language returns the dimension (e.g. the number of columns and ... https://statisticsglobe.com Dimensions of an Object - R
an R object, for example a matrix, array or data frame. value. For the default method, either NULL or a numeric vector, which is coerced to integer (by truncation). https://stat.ethz.ch R define dimensions of empty data frame - Stack Overflow
Just create a data frame of empty vectors: collect1 <- data.frame(id = character(0), max1 = numeric(0), max2 = numeric(0)). But if you know how ... https://stackoverflow.com R Language Fundamentals - Data Frames
> dim(X). [1] 3 4. Dimension, dim(X), is an integer vector giving the number of rows and columns. Page 5. Objects that Hold Data. Matrix Entries, Rows, ... http://www3.nd.edu R 資料結構筆記 - 龍崗山上的倉鼠
data.frame 屬於R 特有的資料結構，因為有此結構使R相對比其他程式 ... nrow( ) -> 觀察列的數量; ncol( ) -> 觀察行的數量; dim( ) -> 同時看行列的 ... https://kanchengzxdfgcv.blogsp R: Dimensions of an Object - Astrostatistics
an R object, for example a matrix, array or data frame. value, For the default method, either NULL or a numeric vector which coerced to integer (by truncation). https://astrostatistics.psu.ed R: Dimensions of an Object - personal.psu.edu
an R object, for example a matrix, array or data frame. value, For the default method, either NULL or a numeric vector which coerced to integer (by truncation). http://personal.psu.edu The Number of RowsColumns of an Array - R
nrow base}, R Documentation ... a vector, array, data frame, or NULL . ... ma <- matrix(1:12, 3, 4) nrow(ma) # 3 ncol(ma) # 4 ncol(array(1:24, dim = 2:4)) # 3, the ... https://stat.ethz.ch |