[2:2:end,1:4]))' Xte_labels = convert(Array,(iris[2:2:end,5])) # suppose Xtr and Xte are training and testing data matrix, # with each observation in a column # train a PCA model, allowing up to 3 dimensions M = fit(PCA, Xtr; maxoutdim=3) # apply PCA model to testing ...
>>StatsModels.DataFrameRegressionModel{GeneralizedLinearModel{GlmResp{Array{Float64,1},Binomial{Float64},ProbitLink},DensePredChol{Float64,LinearAlgebra.Cholesky{Float64,Array{Float64,2}}},Array{Float64,2}} Formula: Y ~ 1 + X Coefficients: Estimate Std.Error z value Pr(>|z|) (Intercept) -...
计算中。...pbmc的meta成员中,类型为DataFrame,因此可以使用DataFrames包的combine操作做进一步的查看和处理。...数据交换 在Julia中,推荐用户使用JLD2来将计算过程的变量保存到基于HDF5的JLD2文件中,可以实现快速的保存和读取,以方便随时恢复当前的分析进度。
问减少内存分配并提高Julia代码的速度EN我正在尝试对所选变量的所有可能组合运行多个回归。我的代码正在运...
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The only thing to do in order to initialize julia is to load the library Rulia. Then, it is pretty direct to: convert an R object to julia object (in fact, a jlvalue external pointer in the R side) apply a julia function to the R object and finally convert the julia result to an...
37. Linear Algebra and Matrix OperationsBelow is the implementation to perform the matrix operation −Open Compiler # Example: Matrix operations A = [1 2; 3 4] B = [5 6; 7 8] # Matrix multiplication println(A * B) 38. Plotting with Plots.jl...
To work with this as a tidy dataset, we need to restructure it as one-token-per-row format. The unnest_tokens() function is a way to convert a dataframe with a text column to be one-token-per-row:library(tidytext) tidy_books <- original_books %>% unnest_tokens(word, text) tidy_...
In the tidytext package, there is a functionunnest_tokenswhich has this functionality; it restructures text into a one-token-per-row format. This function is a way to convert a dataframe with a text column to be one-token-per-row. Let’s look at an example using Jane Austen’s novels...
In the first scenario, you need to perform analytical tasks provided by functions that do not accept a data frame as input, but instead accept another type, so you’d need to convert a data frame to the expected target format. An example is conversion of a data frame to a matrix that ...