def prebuild_arch(self, arch):
        prebuild = "prebuild_{}".format(arch.arch.replace('-', '_'))
        if hasattr(self, prebuild):
            getattr(self, prebuild)()
        else:
            info('{} has no {}, skipping'.format(self.name, prebuild))
Computes a tf-idf vector for a given set of tags.
dataset/ETHPy150Open kivy/python-for-android/pythonforandroid/recipe.py/Recipe.prebuild_arch--crossover with--dataset/ETHPy150Open dchaplinsky/unshred-tag/metrics/tfidf.py/get_tf_idf_vector