Method ArrayIterForTest

tests/cpp/helpers.cc:689–694

}

ArrayIterForTest::ArrayIterForTest(float sparsity, bst_idx_t rows, size_t cols, size_t batches)
    : rows_{rows}, cols_{cols}, n_batches_{batches} {
  XGProxyDMatrixCreate(&proxy_);
  rng_ = std::make_unique<RandomDataGenerator>(rows_, cols_, sparsity);
  std::tie(batches_, interface_) = rng_->GenerateArrayInterfaceBatch(&data_, n_batches_);
}

ArrayIterForTest::ArrayIterForTest(Context const* ctx, HostDeviceVector<float> const& data,
                                   std::size_t n_samples, bst_feature_t n_features,