Class MnistDataset
Defined in File datasets.h
Inheritance Relationships
Base Type
public mindspore::dataset::Dataset
(Class Dataset)
Class Documentation
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class MnistDataset : public mindspore::dataset::Dataset
Public Functions
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MnistDataset(const std::vector<char> &dataset_dir, const std::vector<char> &usage, const std::shared_ptr<Sampler> &sampler, const std::shared_ptr<DatasetCache> &cache)
Constructor of MnistDataset.
- Parameters
dataset_dir – [in] Path to the root directory that contains the dataset.
usage – [in] Part of dataset of MNIST, can be “train”, “test” or “all” (default = “all”).
sampler – [in] Shared pointer to a sampler object used to choose samples from the dataset. If sampler is not given, a
RandomSampler
will be used to randomly iterate the entire dataset (default = RandomSampler()).cache – [in] Tensor cache to use (default=nullptr which means no cache is used).
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MnistDataset(const std::vector<char> &dataset_dir, const std::vector<char> &usage, const Sampler *sampler, const std::shared_ptr<DatasetCache> &cache)
Constructor of MnistDataset.
- Parameters
dataset_dir – [in] Path to the root directory that contains the dataset.
usage – [in] Part of dataset of MNIST, can be “train”, “test” or “all”.
sampler – [in] Raw pointer to a sampler object used to choose samples from the dataset.
cache – [in] Tensor cache to use (default=nullptr which means no cache is used).
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MnistDataset(const std::vector<char> &dataset_dir, const std::vector<char> &usage, const std::reference_wrapper<Sampler> &sampler, const std::shared_ptr<DatasetCache> &cache)
Constructor of MnistDataset.
- Parameters
dataset_dir – [in] Path to the root directory that contains the dataset.
usage – [in] Part of dataset of MNIST, can be “train”, “test” or “all”.
sampler – [in] Sampler object used to choose samples from the dataset.
cache – [in] Tensor cache to use (default=nullptr which means no cache is used).
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~MnistDataset() override = default
Destructor of MnistDataset.
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MnistDataset(const std::vector<char> &dataset_dir, const std::vector<char> &usage, const std::shared_ptr<Sampler> &sampler, const std::shared_ptr<DatasetCache> &cache)