Issues

• Author new graded assignments (notebooks now ship full worked solutions)

  makeabilitylab/signals#28 · Filter by author jonfroehlich opened on Jun 26, 2026

• Follow-up: speed up the brute-force DFT-by-correlation demo (fast-tier perf)

  makeabilitylab/signals#27 · Filter by author jonfroehlich opened on Jun 26, 2026

• Frequency Analysis: prose & comment clarity (xcorr amplitude scaling, magnitude_spectrum *2, bin-spacing vs resolution)

  documentation
  makeabilitylab/signals#24 · Filter by author jonfroehlich opened on Jun 24, 2026

• Gesture ML notebooks: prose/code mismatches (SelectKBest k=4 vs k=6; hard-coded 65.5% with unseeded split)

  documentation
  makeabilitylab/signals#23 · Filter by author jonfroehlich opened on Jun 24, 2026

• Feature Selection: manual grid-search uses stale 'filtered_df' for X instead of the freshly built df

  bug
  makeabilitylab/signals#22 · Filter by author jonfroehlich opened on Jun 24, 2026

• gesturerec/data.py: get_gesture_names_filtered self-appends; get_random_gesture_set defined twice

  bug
  makeabilitylab/signals#21 · Filter by author jonfroehlich opened on Jun 24, 2026

• StepTracker (both notebooks): top-2/top-3 frequencies duplicated + real-time peak slope wraps at buffer start

  bug
  makeabilitylab/signals#20 · Filter by author jonfroehlich opened on Jun 24, 2026

• Gesture notebooks: std feature mislabeled "std(mag.max())" (it computes std(mag))

  bug
  makeabilitylab/signals#19 · Filter by author jonfroehlich opened on Jun 24, 2026

• FeatureBased: plot_feature_3d plots feature 2 on the z-axis; second 3D plot has mismatched axis labels

  bug
  makeabilitylab/signals#18 · Filter by author jonfroehlich opened on Jun 24, 2026

• FeatureBased: train/test leakage in per-user leave-one-out cross-validation

  bug
  makeabilitylab/signals#17 · Filter by author jonfroehlich opened on Jun 24, 2026

• Audit: algorithmic/math correctness, prose accuracy, and student-facing comments (all lessons)

  documentation
  makeabilitylab/signals#16 · Filter by author jonfroehlich opened on Jun 24, 2026
  1

• Decision: rename default branch master -> main?

  infrastructurequestion
  makeabilitylab/signals#15 · Filter by author jonfroehlich opened on Jun 24, 2026

• Decision: de-space the 4 notebook filenames (with spaces)?

  documentationquestion
  makeabilitylab/signals#14 · Filter by author jonfroehlich opened on Jun 24, 2026

• Validate Binder launch (all 10 notebooks)

  infrastructuretesting
  makeabilitylab/signals#13 · Filter by author jonfroehlich opened on Jun 24, 2026

• Validate Colab badges end-to-end (all 10 notebooks)

  infrastructuretesting
  makeabilitylab/signals#12 · Filter by author jonfroehlich opened on Jun 24, 2026

• Quantization & Sampling notebook: plot_signal called with quantization_bits in the title slot (should be plot_audio)

  makeabilitylab/signals#10 · Filter by author jonfroehlich opened on Jun 24, 2026

• convert value to G force

  makeabilitylab/signals#3 · Filter by author chencjiajy opened on Aug 26, 2024