01_intro

Notes from the first chapter

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The following is a code block with comments in it

    ! [ -e /content ] && pip install -Uqq fastbook
    import fastbook
    fastbook.setup_book()
    from fastbook import *

    from fastai.vision.all import *
    path = untar_data(URLs.PETS)/'images'

    def is_cat(x): return x[0].isupper()
    dls = ImageDataLoaders.from_name_func(
        path, get_image_files(path), valid_pct=0.2, seed=42,
        label_func=is_cat, item_tfms=Resize(224))

    learn = vision_learner(dls, resnet34, metrics=error_rate)
    learn.fine_tune(1)