Webrekado pushed a commit to branch master in repository guix. commit a11ee478a684e7a18f1a3eb51e3164645129af75 Author: Ricardo Wurmus … Weblibrary(reshape2) acast(df, site.x ~ site.y, value.var='Distance', fun.aggregate = sum, margins=FALSE) 是的，这就是问题所在。我已经用自己的函数计算了距离。但是，创建树状图或进行PCA等需要距离对象。
R语言：reshape2包里的melt ()、dcast ()、acast ()函数学习
WebApr 9, 2024 · reshape2: Flexibly Reshape Data: A Reboot of the Reshape Package. Flexibly restructure and aggregate data using just two functions: melt and 'dcast' (or 'acast'). WebThe reshape2 package provides functions that let us easily aggregate and summarize data by our chosen variable(s). This process involves the melt() function which converts from wide to long, and a series of *cast() functions that use an aggregation function to convert back to a reduced wide form. phoebe sofa
R reshape2::cast -- EndMemo
Weblibrary(reshape2) acast(df, site.x ~ site.y, value.var='Distance', fun.aggregate = sum, margins=FALSE) 是的，这就是问题所在。我已经用自己的函数计算了距离。但是，创建树 … WebПреобразование xyz dataframe в matrix в base R. Я хотел бы преобразовать dataframe в матрицу. У меня получилось с помощью функции acast в пакете reshape2 но хотел бы узнать как это сделать в base R. # Create data set.seed(123) df <- tidyr::expand_grid(x = c(1,2,3), y = c(0,-0.5,-1 ... Webacast still returns a factor matrix. (Thanks to Brian Diggs.) acast is now much faster, due to fixing a very slow way of naming the output. (Thanks to José Bartolomei Díaz for the bug … ttc 66a