bench_plot_incremental_pca.py 文件源码

def plot_feature_times(all_times, batch_size, all_components, data):
    plt.figure()
    plot_results(all_components, all_times['pca'], label="PCA")
    plot_results(all_components, all_times['ipca'],
                 label="IncrementalPCA, bsize=%i" % batch_size)
    plot_results(all_components, all_times['rpca'], label="RandomizedPCA")
    plt.legend(loc="upper left")
    plt.suptitle("Algorithm runtime vs. n_components\n \
                 LFW, size %i x %i" % data.shape)
    plt.xlabel("Number of components (out of max %i)" % data.shape[1])
    plt.ylabel("Time (seconds)")