{ "cells": [ { "cell_type": "markdown", "id": "2f04eee0-5928-4e74-a754-6dc2e528810c", "metadata": {}, "source": [ "# Knight" ] }, { "cell_type": "markdown", "id": "a3f514a3-772c-4a14-afdf-5a8376851ff4", "metadata": {}, "source": [ "## Index\n", "1. [Instantiate model class](#Instantiate-model-class)\n", "2. [Define clock metadata](#Define-clock-metadata)\n", "3. [Download clock dependencies](#Download-clock-dependencies)\n", "5. [Load features](#Load-features)\n", "6. [Load weights into base model](#Load-weights-into-base-model)\n", "7. [Load reference values](#Load-reference-values)\n", "8. [Load preprocess and postprocess objects](#Load-preprocess-and-postprocess-objects)\n", "10. [Check all clock parameters](#Check-all-clock-parameters)\n", "10. [Basic test](#Basic-test)\n", "11. [Save torch model](#Save-torch-model)\n", "12. [Clear directory](#Clear-directory)" ] }, { "cell_type": "markdown", "id": "d95fafdc-643a-40ea-a689-200bd132e90c", "metadata": {}, "source": [ "Let's first import some packages:" ] }, { "cell_type": "code", "execution_count": 1, "id": "4adfb4de-cd79-4913-a1af-9e23e9e236c9", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:07.241368Z", "iopub.status.busy": "2025-04-07T17:52:07.240993Z", "iopub.status.idle": "2025-04-07T17:52:08.648543Z", "shell.execute_reply": "2025-04-07T17:52:08.648140Z" } }, "outputs": [], "source": [ "import os\n", "import inspect\n", "import shutil\n", "import json\n", "import torch\n", "import pandas as pd\n", "import pyaging as pya" ] }, { "cell_type": "markdown", "id": "145082e5-ced4-47ae-88c0-cb69773e3c5a", "metadata": {}, "source": [ "## Instantiate model class" ] }, { "cell_type": "code", "execution_count": 2, "id": "8aa77372-7ed3-4da7-abc9-d30372106139", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:08.650356Z", "iopub.status.busy": "2025-04-07T17:52:08.650121Z", "iopub.status.idle": "2025-04-07T17:52:08.657500Z", "shell.execute_reply": "2025-04-07T17:52:08.657213Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "class Knight(pyagingModel):\n", " def __init__(self):\n", " super().__init__()\n", "\n", " def preprocess(self, x):\n", " return x\n", "\n", " def postprocess(self, x):\n", " return x\n", "\n" ] } ], "source": [ "def print_entire_class(cls):\n", " source = inspect.getsource(cls)\n", " print(source)\n", "\n", "print_entire_class(pya.models.Knight)" ] }, { "cell_type": "code", "execution_count": 3, "id": "78536494-f1d9-44de-8583-c89a310d2307", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:08.658773Z", "iopub.status.busy": "2025-04-07T17:52:08.658684Z", "iopub.status.idle": "2025-04-07T17:52:08.660324Z", "shell.execute_reply": "2025-04-07T17:52:08.660081Z" } }, "outputs": [], "source": [ "model = pya.models.Knight()" ] }, { "cell_type": "markdown", "id": "51f8615e-01fa-4aa5-b196-3ee2b35d261c", "metadata": {}, "source": [ "## Define clock metadata" ] }, { "cell_type": "code", "execution_count": 4, "id": "6601da9e-8adc-44ee-9308-75e3cd31b816", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:08.661607Z", "iopub.status.busy": "2025-04-07T17:52:08.661522Z", "iopub.status.idle": "2025-04-07T17:52:08.663490Z", "shell.execute_reply": "2025-04-07T17:52:08.663261Z" } }, "outputs": [], "source": [ "model.metadata[\"clock_name\"] = \"knight\"\n", "model.metadata[\"data_type\"] = \"DNA methylation\" # Paper: methylation\n", "model.metadata[\"species\"] = \"Homo sapiens\" # Paper: Homo sapiens\n", "model.metadata[\"year\"] = 2016\n", "model.metadata[\"approved_by_author\"] = \"✅\"\n", "model.metadata[\"citation\"] = \"Knight, A. K., et al. \\\"An epigenetic clock for gestational age at birth based on blood methylation data.\\\" Genome Biology 17 (2016): 206.\"\n", "model.metadata[\"doi\"] = \"https://doi.org/10.1186/s13059-016-1068-z\"\n", "model.metadata[\"notes\"] = \"Elastic-net DNA-methylation estimator of gestational age at birth trained across six cord-blood and neonatal blood-spot cohorts, using 148 CpGs shared across the 27K and 450K arrays.\"\n", "model.metadata[\"research_only\"] = None\n", "model.metadata[\"tissue\"] = [\"cord blood\", \"neonatal blood spots\"] # Paper: umbilical cord blood; neonatal blood spots\n", "model.metadata[\"predicts\"] = [\"gestational age\"] # Paper: gestational age at birth\n", "model.metadata[\"training_target\"] = [\"gestational age\"] # Paper: gestational age at birth\n", "model.metadata[\"unit\"] = [\"weeks\"] # Paper: weeks\n", "model.metadata[\"model_type\"] = \"elastic net regression\" # Paper: Elastic net\n", "model.metadata[\"platform\"] = [\"Illumina 27K\", \"Illumina 450K\"] # Paper: Illumina 27K; Illumina 450K\n", "model.metadata[\"population\"] = \"newborns\" # Paper: six neonatal training cohorts spanning 24–42 weeks of gestation and multiple ancestries\n", "model.metadata[\"journal\"] = \"Genome Biology\"\n", "model.metadata[\"last_author\"] = \"Alicia K. Smith\"\n", "model.metadata[\"n_features\"] = 148\n", "model.metadata[\"citations\"] = 312\n", "model.metadata[\"citations_date\"] = \"2026-07-05\"\n" ] }, { "cell_type": "markdown", "id": "74492239-5aae-4026-9d90-6bc9c574c110", "metadata": {}, "source": [ "## Download clock dependencies" ] }, { "cell_type": "markdown", "id": "d1700966-76c4-4900-88ad-aa607d236d4b", "metadata": {}, "source": [ "#### Download directly with curl" ] }, { "cell_type": "code", "execution_count": 5, "id": "8a6c80e9-18ca-4179-bcf9-6cb017c6c7e2", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:08.664739Z", "iopub.status.busy": "2025-04-07T17:52:08.664663Z", "iopub.status.idle": "2025-04-07T17:52:08.838826Z", "shell.execute_reply": "2025-04-07T17:52:08.838329Z" } }, "outputs": [ { "data": { "text/plain": [ "0" ] }, "execution_count": 5, "metadata": {}, "output_type": "execute_result" } ], "source": [ "supplementary_url = \"https://static-content.springer.com/esm/art%3A10.1186%2Fs13059-016-1068-z/MediaObjects/13059_2016_1068_MOESM3_ESM.csv\"\n", "supplementary_file_name = \"coefficients.csv\"\n", "os.system(f\"curl -o {supplementary_file_name} {supplementary_url}\")" ] }, { "cell_type": "code", "execution_count": 6, "id": "0a7de49e-d3ac-433e-85fa-46b785106bd4", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:08.841039Z", "iopub.status.busy": "2025-04-07T17:52:08.840838Z", "iopub.status.idle": "2025-04-07T17:52:09.068483Z", "shell.execute_reply": "2025-04-07T17:52:09.068082Z" } }, "outputs": [ { "data": { "text/plain": [ "0" ] }, "execution_count": 6, "metadata": {}, "output_type": "execute_result" } ], "source": [ "supplementary_url = \"https://static-content.springer.com/esm/art%3A10.1186%2Fgb-2013-14-10-r115/MediaObjects/13059_2013_3156_MOESM22_ESM.csv\"\n", "supplementary_file_name = \"reference_feature_values.csv\"\n", "os.system(f\"curl -o {supplementary_file_name} {supplementary_url}\")" ] }, { "cell_type": "markdown", "id": "5035b180-3d1b-4432-8ebe-b9c92bd93a7f", "metadata": {}, "source": [ "## Load features" ] }, { "cell_type": "markdown", "id": "15f4af76-b93c-438c-b57f-f129d6e9ec99", "metadata": {}, "source": [ "#### From CSV file" ] }, { "cell_type": "code", "execution_count": 7, "id": "8a3d5de6-6303-487a-8b4d-e6345792f7be", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:09.070753Z", "iopub.status.busy": "2025-04-07T17:52:09.070585Z", "iopub.status.idle": "2025-04-07T17:52:09.076013Z", "shell.execute_reply": "2025-04-07T17:52:09.075550Z" } }, "outputs": [], "source": [ "df = pd.read_csv('coefficients.csv')\n", "df['feature'] = df['CpGmarker']\n", "df['coefficient'] = df['CoefficientTraining']\n", "\n", "model.features = features = df['feature'][1:].tolist()" ] }, { "cell_type": "markdown", "id": "ee6d8fa0-4767-4c45-9717-eb1c95e2ddc0", "metadata": {}, "source": [ "## Load weights into base model" ] }, { "cell_type": "code", "execution_count": 8, "id": "e09b3463-4fd4-41b1-ac21-e63ddd223fe0", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:09.077931Z", "iopub.status.busy": "2025-04-07T17:52:09.077783Z", "iopub.status.idle": "2025-04-07T17:52:09.080300Z", "shell.execute_reply": "2025-04-07T17:52:09.079974Z" } }, "outputs": [], "source": [ "weights = torch.tensor(df['coefficient'][1:].tolist()).unsqueeze(0)\n", "intercept = torch.tensor([df['coefficient'][0]])" ] }, { "cell_type": "markdown", "id": "ad261636-5b00-4979-bb1d-67a851f7aa19", "metadata": {}, "source": [ "#### Linear model" ] }, { "cell_type": "code", "execution_count": 9, "id": "d7f43b99-26f2-4622-9a76-316712058877", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:09.081908Z", "iopub.status.busy": "2025-04-07T17:52:09.081765Z", "iopub.status.idle": "2025-04-07T17:52:09.084387Z", "shell.execute_reply": "2025-04-07T17:52:09.084057Z" } }, "outputs": [], "source": [ "base_model = pya.models.LinearModel(input_dim=len(model.features))\n", "\n", "base_model.linear.weight.data = weights.float()\n", "base_model.linear.bias.data = intercept.float()\n", "\n", "model.base_model = base_model" ] }, { "cell_type": "markdown", "id": "ad8b4c1d-9d57-48b7-9a30-bcfea7b747b1", "metadata": {}, "source": [ "## Load reference values" ] }, { "cell_type": "markdown", "id": "f7fdae64-096a-4640-ade7-6a17b78a01d5", "metadata": {}, "source": [ "#### From CSV file" ] }, { "cell_type": "code", "execution_count": 10, "id": "86de757f-fb38-4bcb-b91e-fc3372d22aad", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:09.086097Z", "iopub.status.busy": "2025-04-07T17:52:09.085967Z", "iopub.status.idle": "2025-04-07T17:52:09.102332Z", "shell.execute_reply": "2025-04-07T17:52:09.101959Z" } }, "outputs": [], "source": [ "reference_feature_values_df = pd.read_csv('reference_feature_values.csv', index_col=0)\n", "reference_feature_values_df = reference_feature_values_df.loc[model.features]\n", "model.reference_values = reference_feature_values_df['goldstandard2'].tolist()" ] }, { "cell_type": "markdown", "id": "af3bcf7b-74a8-4d21-9ccb-4de0c2b0516b", "metadata": {}, "source": [ "## Load preprocess and postprocess objects" ] }, { "cell_type": "code", "execution_count": 11, "id": "7a22fb20-c605-424d-8efb-7620c2c0755c", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:09.103924Z", "iopub.status.busy": "2025-04-07T17:52:09.103828Z", "iopub.status.idle": "2025-04-07T17:52:09.105545Z", "shell.execute_reply": "2025-04-07T17:52:09.105271Z" } }, "outputs": [], "source": [ "model.preprocess_name = None\n", "model.preprocess_dependencies = None" ] }, { "cell_type": "code", "execution_count": 12, "id": "ff4a21cb-cf41-44dc-9ed1-95cf8aa15772", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:09.106845Z", "iopub.status.busy": "2025-04-07T17:52:09.106752Z", "iopub.status.idle": "2025-04-07T17:52:09.108282Z", "shell.execute_reply": "2025-04-07T17:52:09.108016Z" } }, "outputs": [], "source": [ "model.postprocess_name = None\n", "model.postprocess_dependencies = None" ] }, { "cell_type": "markdown", "id": "86e3d6b1-e67e-4f3d-bd39-0ebec5726c3c", "metadata": {}, "source": [ "## Check all clock parameters" ] }, { "cell_type": "code", "execution_count": 13, "id": "2168355c-47d9-475d-b816-49f65e74887c", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:09.109627Z", "iopub.status.busy": "2025-04-07T17:52:09.109540Z", "iopub.status.idle": "2025-04-07T17:52:09.113133Z", "shell.execute_reply": "2025-04-07T17:52:09.112874Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "\n", "%==================================== Model Details ====================================%\n", "Model Attributes:\n", "\n", "training: True\n", "metadata: {'approved_by_author': '✅',\n", " 'citation': 'Knight, Anna K., et al. \"An epigenetic clock for gestational age '\n", " 'at birth based on blood methylation data.\" Genome biology 17.1 '\n", " '(2016): 1-11.',\n", " 'clock_name': 'knight',\n", " 'data_type': 'methylation',\n", " 'doi': 'https://doi.org/10.1186/s13059-016-1068-z',\n", " 'notes': None,\n", " 'research_only': None,\n", " 'species': 'Homo sapiens',\n", " 'version': None,\n", " 'year': 2016}\n", "reference_values: [0.470988652, 0.4574588, 0.471526503, 0.060478447, 0.576057497, 0.578012018, 0.73858511, 0.032705227, 0.129677634, 0.847421632, 0.040442058, 0.123711132, 0.042129823, 0.058492584, 0.47490999, 0.567201154, 0.028050524, 0.693295627, 0.362458936, 0.357454375, 0.751423923, 0.076149441, 0.084830058, 0.047438755, 0.123293314, 0.851965226, 0.354742659, 0.83293121, 0.056902106, 0.464347542]... [Total elements: 148]\n", "preprocess_name: None\n", "preprocess_dependencies: None\n", "postprocess_name: None\n", "postprocess_dependencies: None\n", "features: ['cg00022866', 'cg00466249', 'cg00546897', 'cg00575744', 'cg00689340', 'cg01056568', 'cg01184449', 'cg01348086', 'cg02100629', 'cg02813863', 'cg02941816', 'cg03086857', 'cg03427564', 'cg03506489', 'cg03923277', 'cg04001333', 'cg04323187', 'cg05294455', 'cg05365729', 'cg05512756', 'cg05564251', 'cg05898102', 'cg06049972', 'cg06311778', 'cg06471905', 'cg07017706', 'cg07141002', 'cg07197059', 'cg07664183', 'cg07679836']... [Total elements: 148]\n", "base_model_features: None\n", "\n", "%==================================== Model Details ====================================%\n", "Model Structure:\n", "\n", "base_model: LinearModel(\n", " (linear): Linear(in_features=148, out_features=1, bias=True)\n", ")\n", "\n", "%==================================== Model Details ====================================%\n", "Model Parameters and Weights:\n", "\n", "base_model.linear.weight: [0.6935521960258484, -0.8255749344825745, -1.3585155010223389, -3.8292856216430664, 0.9603426456451416, 0.20516617596149445, 0.782781720161438, -1.3157227039337158, 0.5592088103294373, -1.0659143924713135, 1.355500340461731, 1.0993326902389526, -7.938111782073975, 6.338893413543701, -0.33696240186691284, -0.09361063688993454, 1.9930349588394165, 2.1887292861938477, 0.7005508542060852, 0.26436084508895874, -0.8554026484489441, -1.3309569358825684, 1.6402506828308105, -4.172684192657471, 0.1557571291923523, -4.798856258392334, -0.166761115193367, 0.09205283224582672, -3.1910228729248047, 0.048825453966856]... [Tensor of shape torch.Size([1, 148])]\n", "base_model.linear.bias: tensor([41.7258])\n", "\n", "%==================================== Model Details ====================================%\n", "\n" ] } ], "source": [ "pya.utils.print_model_details(model)" ] }, { "cell_type": "markdown", "id": "986d0262-e0c7-4036-b687-dee53ba392fb", "metadata": {}, "source": [ "## Basic test" ] }, { "cell_type": "code", "execution_count": 14, "id": "936b9877-d076-4ced-99aa-e8d4c58c5caf", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:09.114721Z", "iopub.status.busy": "2025-04-07T17:52:09.114584Z", "iopub.status.idle": "2025-04-07T17:52:09.119237Z", "shell.execute_reply": "2025-04-07T17:52:09.118968Z" } }, "outputs": [ { "data": { "text/plain": [ "tensor([[ 44.4538],\n", " [102.4336],\n", " [ 14.7963],\n", " [137.9892],\n", " [102.6453],\n", " [ 56.0923],\n", " [ 73.7889],\n", " [ 26.2043],\n", " [-12.2354],\n", " [ 91.9445]], dtype=torch.float64, grad_fn=)" ] }, "execution_count": 14, "metadata": {}, "output_type": "execute_result" } ], "source": [ "torch.manual_seed(42)\n", "input = torch.randn(10, len(model.features), dtype=float)\n", "model.eval()\n", "model.to(float)\n", "pred = model(input)\n", "pred" ] }, { "cell_type": "markdown", "id": "fe8299d7-9285-4e22-82fd-b664434b4369", "metadata": {}, "source": [ "## Save torch model" ] }, { "cell_type": "code", "execution_count": 15, "id": "5ef2fa8d-c80b-4fdd-8555-79c0d541788e", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:09.120615Z", "iopub.status.busy": "2025-04-07T17:52:09.120529Z", "iopub.status.idle": "2025-04-07T17:52:09.123061Z", "shell.execute_reply": "2025-04-07T17:52:09.122787Z" } }, "outputs": [], "source": [ "torch.save(model, f\"../weights/{model.metadata['clock_name']}.pt\")" ] }, { "cell_type": "markdown", "id": "bac6257b-8d08-4a90-8d0b-7f745dc11ac1", "metadata": {}, "source": [ "## Clear directory\n", "" ] }, { "cell_type": "code", "execution_count": 16, "id": "11aeaa70-44c0-42f9-86d7-740e3849a7a6", "metadata": { "execution": { "iopub.execute_input": "2025-04-07T17:52:09.124389Z", "iopub.status.busy": "2025-04-07T17:52:09.124301Z", "iopub.status.idle": "2025-04-07T17:52:09.127568Z", "shell.execute_reply": "2025-04-07T17:52:09.127318Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "Deleted file: coefficients.csv\n", "Deleted file: reference_feature_values.csv\n" ] } ], "source": [ "# Function to remove a folder and all its contents\n", "def remove_folder(path):\n", " try:\n", " shutil.rmtree(path)\n", " print(f\"Deleted folder: {path}\")\n", " except Exception as e:\n", " print(f\"Error deleting folder {path}: {e}\")\n", "\n", "# Get a list of all files and folders in the current directory\n", "all_items = os.listdir('.')\n", "\n", "# Loop through the items\n", "for item in all_items:\n", " # Check if it's a file and does not end with .ipynb\n", " if os.path.isfile(item) and not item.endswith('.ipynb'):\n", " os.remove(item)\n", " print(f\"Deleted file: {item}\")\n", " # Check if it's a folder\n", " elif os.path.isdir(item):\n", " remove_folder(item)" ] } ], "metadata": { "kernelspec": { "display_name": "Python 3", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.9.7" } }, "nbformat": 4, "nbformat_minor": 5 }