| |
| GetMNIST_ubyte <- function() { |
| if (!dir.exists("data")) { |
| dir.create("data/") |
| } |
| if (!file.exists('data/train-images-idx3-ubyte') | |
| !file.exists('data/train-labels-idx1-ubyte') | |
| !file.exists('data/t10k-images-idx3-ubyte') | |
| !file.exists('data/t10k-labels-idx1-ubyte')) { |
| download.file('http://data.mxnet.io/mxnet/data/mnist.zip', destfile = 'data/mnist.zip') |
| unzip('data/mnist.zip', exdir = 'data/') |
| } |
| } |
| |
| GetMNIST_csv <- function() { |
| if (!dir.exists("data")) { |
| dir.create("data/") |
| } |
| if (!file.exists('data/train.csv') | |
| !file.exists('data/test.csv')) { |
| download.file('https://s3-us-west-2.amazonaws.com/apache-mxnet/R/data/mnist_csv.zip', |
| destfile = 'data/mnist_csv.zip') |
| unzip('data/mnist_csv.zip', exdir = 'data/') |
| } |
| } |
| |
| GetCifar10 <- function() { |
| if (!dir.exists("data")) { |
| dir.create("data/") |
| } |
| if (!file.exists('data/cifar/train.rec') | |
| !file.exists('data/cifar/test.rec') | |
| !file.exists('data/cifar/train.lst') | |
| !file.exists('data/cifar/test.lst')) { |
| download.file('http://data.mxnet.io/mxnet/data/cifar10.zip', |
| destfile = 'data/cifar10.zip') |
| unzip('data/cifar10.zip', exdir = 'data/') |
| } |
| } |
