{ "cells": [ { "cell_type": "markdown", "id": "2f04eee0-5928-4e74-a754-6dc2e528810c", "metadata": {}, "source": [ "# DNAmPhenoAge" ] }, { "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": "2024-03-05T20:16:48.688944Z", "iopub.status.busy": "2024-03-05T20:16:48.688371Z", "iopub.status.idle": "2024-03-05T20:16:50.013311Z", "shell.execute_reply": "2024-03-05T20:16:50.013013Z" } }, "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": "2024-03-05T20:16:50.015225Z", "iopub.status.busy": "2024-03-05T20:16:50.015055Z", "iopub.status.idle": "2024-03-05T20:16:50.021910Z", "shell.execute_reply": "2024-03-05T20:16:50.021655Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "class DNAmPhenoAge(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.DNAmPhenoAge)" ] }, { "cell_type": "code", "execution_count": 3, "id": "78536494-f1d9-44de-8583-c89a310d2307", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.023301Z", "iopub.status.busy": "2024-03-05T20:16:50.023226Z", "iopub.status.idle": "2024-03-05T20:16:50.024787Z", "shell.execute_reply": "2024-03-05T20:16:50.024568Z" } }, "outputs": [], "source": [ "model = pya.models.DNAmPhenoAge()" ] }, { "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": "2024-03-05T20:16:50.026415Z", "iopub.status.busy": "2024-03-05T20:16:50.026339Z", "iopub.status.idle": "2024-03-05T20:16:50.028293Z", "shell.execute_reply": "2024-03-05T20:16:50.028014Z" } }, "outputs": [], "source": [ "model.metadata[\"clock_name\"] = \"dnamphenoage\"\n", "model.metadata[\"data_type\"] = \"DNA methylation\" # Paper: methylation\n", "model.metadata[\"species\"] = \"Homo sapiens\" # Paper: Homo sapiens\n", "model.metadata[\"year\"] = 2018\n", "model.metadata[\"approved_by_author\"] = \"⌛\"\n", "model.metadata[\"citation\"] = \"Levine, M. E., et al. \\\"An epigenetic biomarker of aging for lifespan and healthspan.\\\" Aging 10.4 (2018): 573-591.\"\n", "model.metadata[\"doi\"] = \"https://doi.org/10.18632/aging.101414\"\n", "model.metadata[\"notes\"] = \"Blood DNA-methylation estimator trained by elastic net on 513 CpGs common to the 27K, 450K and EPIC arrays to reproduce a mortality-derived clinical Phenotypic Age.\"\n", "model.metadata[\"research_only\"] = None\n", "model.metadata[\"tissue\"] = [\"whole blood\"] # Paper: whole blood\n", "model.metadata[\"predicts\"] = [\"phenotypic age\"] # Paper: phenotypic age\n", "model.metadata[\"training_target\"] = [\"phenotypic age\"] # Paper: phenotypic age\n", "model.metadata[\"unit\"] = [\"years\"] # Paper: years\n", "model.metadata[\"model_type\"] = \"elastic net regression\" # Paper: Elastic net\n", "model.metadata[\"platform\"] = [\"Illumina 27K\", \"Illumina 450K\", \"Illumina EPIC\"] # Paper: Illumina 27K; Illumina 450K; Illumina EPIC\n", "model.metadata[\"population\"] = \"adults\" # Paper: adults (21-100 years)\n", "model.metadata[\"journal\"] = \"Aging\"\n", "model.metadata[\"last_author\"] = \"Steve Horvath\"\n", "model.metadata[\"n_features\"] = 513\n", "model.metadata[\"citations\"] = 3594\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": "830c25ae-69bb-4553-bb83-09138b508d99", "metadata": {}, "source": [ "#### Download directly with curl" ] }, { "cell_type": "code", "execution_count": 5, "id": "7230f19a-fd67-4953-91df-6eaf6db44d69", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.029794Z", "iopub.status.busy": "2024-03-05T20:16:50.029720Z", "iopub.status.idle": "2024-03-05T20:16:50.634381Z", "shell.execute_reply": "2024-03-05T20:16:50.633349Z" } }, "outputs": [ { "data": { "text/plain": [ "0" ] }, "execution_count": 5, "metadata": {}, "output_type": "execute_result" } ], "source": [ "supplementary_url = \"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5940111/bin/aging-10-101414-s002.csv\"\n", "supplementary_file_name = \"coefficients.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": 6, "id": "8a3d5de6-6303-487a-8b4d-e6345792f7be", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.639617Z", "iopub.status.busy": "2024-03-05T20:16:50.639264Z", "iopub.status.idle": "2024-03-05T20:16:50.648455Z", "shell.execute_reply": "2024-03-05T20:16:50.647756Z" } }, "outputs": [], "source": [ "df = pd.read_csv('coefficients.csv')\n", "model.features = df['CpG'][1:].tolist()" ] }, { "cell_type": "markdown", "id": "ee6d8fa0-4767-4c45-9717-eb1c95e2ddc0", "metadata": {}, "source": [ "## Load weights into base model" ] }, { "cell_type": "code", "execution_count": 7, "id": "7f6187ed-fcff-4ff2-bcb1-b5bcef8190e8", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.652398Z", "iopub.status.busy": "2024-03-05T20:16:50.652148Z", "iopub.status.idle": "2024-03-05T20:16:50.656482Z", "shell.execute_reply": "2024-03-05T20:16:50.655872Z" } }, "outputs": [], "source": [ "weights = torch.tensor(df['Weight'][1:].tolist()).unsqueeze(0).float()\n", "intercept = torch.tensor([df['Weight'][0]]).float()" ] }, { "cell_type": "markdown", "id": "ad261636-5b00-4979-bb1d-67a851f7aa19", "metadata": {}, "source": [ "#### Linear model" ] }, { "cell_type": "code", "execution_count": 8, "id": "d7f43b99-26f2-4622-9a76-316712058877", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.659806Z", "iopub.status.busy": "2024-03-05T20:16:50.659571Z", "iopub.status.idle": "2024-03-05T20:16:50.663312Z", "shell.execute_reply": "2024-03-05T20:16:50.662782Z" } }, "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": "code", "execution_count": 9, "id": "ade0f4c9-2298-4fc3-bb72-d200907dd731", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.666068Z", "iopub.status.busy": "2024-03-05T20:16:50.665903Z", "iopub.status.idle": "2024-03-05T20:16:50.668162Z", "shell.execute_reply": "2024-03-05T20:16:50.667733Z" } }, "outputs": [], "source": [ "model.reference_values = None" ] }, { "cell_type": "markdown", "id": "af3bcf7b-74a8-4d21-9ccb-4de0c2b0516b", "metadata": {}, "source": [ "## Load preprocess and postprocess objects" ] }, { "cell_type": "code", "execution_count": 10, "id": "7a22fb20-c605-424d-8efb-7620c2c0755c", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.670730Z", "iopub.status.busy": "2024-03-05T20:16:50.670558Z", "iopub.status.idle": "2024-03-05T20:16:50.672549Z", "shell.execute_reply": "2024-03-05T20:16:50.672183Z" } }, "outputs": [], "source": [ "model.preprocess_name = None\n", "model.preprocess_dependencies = None" ] }, { "cell_type": "code", "execution_count": 11, "id": "ff4a21cb-cf41-44dc-9ed1-95cf8aa15772", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.674663Z", "iopub.status.busy": "2024-03-05T20:16:50.674517Z", "iopub.status.idle": "2024-03-05T20:16:50.676449Z", "shell.execute_reply": "2024-03-05T20:16:50.676072Z" } }, "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": 12, "id": "2168355c-47d9-475d-b816-49f65e74887c", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.678654Z", "iopub.status.busy": "2024-03-05T20:16:50.678509Z", "iopub.status.idle": "2024-03-05T20:16:50.682741Z", "shell.execute_reply": "2024-03-05T20:16:50.682339Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "\n", "%==================================== Model Details ====================================%\n", "Model Attributes:\n", "\n", "training: True\n", "metadata: {'approved_by_author': '⌛',\n", " 'citation': 'Levine, Morgan E., et al. \"An epigenetic biomarker of aging for '\n", " 'lifespan and healthspan.\" Aging (albany NY) 10.4 (2018): 573.',\n", " 'clock_name': 'dnamphenoage',\n", " 'data_type': 'methylation',\n", " 'doi': 'https://doi.org/10.18632%2Faging.101414',\n", " 'notes': None,\n", " 'research_only': None,\n", " 'species': 'Homo sapiens',\n", " 'version': None,\n", " 'year': 2018}\n", "reference_values: None\n", "preprocess_name: None\n", "preprocess_dependencies: None\n", "postprocess_name: None\n", "postprocess_dependencies: None\n", "features: ['cg15611364', 'cg17605084', 'cg26382071', 'cg12743894', 'cg19287114', 'cg12985418', 'cg19398783', 'cg15963417', 'cg27187881', 'cg09892203', 'cg00943950', 'cg18996776', 'cg16340918', 'cg23832061', 'cg22736354', 'cg04084157', 'cg07265300', 'cg02503970', 'cg11426590', 'cg23710218', 'cg02802055', 'cg13631913', 'cg06493994', 'cg24304712', 'cg01131735', 'cg24208206', 'cg01930621', 'cg19104072', 'cg07850604', 'cg27493997']... [Total elements: 513]\n", "base_model_features: None\n", "\n", "%==================================== Model Details ====================================%\n", "Model Structure:\n", "\n", "base_model: LinearModel(\n", " (linear): Linear(in_features=513, out_features=1, bias=True)\n", ")\n", "\n", "%==================================== Model Details ====================================%\n", "Model Parameters and Weights:\n", "\n", "base_model.linear.weight: [63.124149322509766, -44.00939178466797, 40.42085266113281, 36.788185119628906, -36.49384307861328, -35.900089263916016, 35.83308410644531, -34.698429107666016, -33.54555892944336, -33.48234558105469, 33.47697830200195, 33.05057144165039, 32.14665603637695, -31.902469635009766, 31.842193603515625, 31.62165641784668, 28.398008346557617, 25.585140228271484, -24.78579330444336, 24.158702850341797, -24.117156982421875, 23.838054656982422, 23.372079849243164, 23.300357818603516, -22.9146671295166, 22.540685653686523, -21.787927627563477, -21.598669052124023, 21.31021499633789, -21.20072364807129]... [Tensor of shape torch.Size([1, 513])]\n", "base_model.linear.bias: tensor([60.6640])\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": 13, "id": "936b9877-d076-4ced-99aa-e8d4c58c5caf", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.684781Z", "iopub.status.busy": "2024-03-05T20:16:50.684666Z", "iopub.status.idle": "2024-03-05T20:16:50.689017Z", "shell.execute_reply": "2024-03-05T20:16:50.688717Z" } }, "outputs": [ { "data": { "text/plain": [ "tensor([[ 134.9219],\n", " [ 396.0094],\n", " [-309.7721],\n", " [ 77.3113],\n", " [-209.0913],\n", " [-141.9328],\n", " [ 424.4550],\n", " [-125.9833],\n", " [-119.9547],\n", " [-250.8203]], dtype=torch.float64, grad_fn=)" ] }, "execution_count": 13, "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": 14, "id": "5ef2fa8d-c80b-4fdd-8555-79c0d541788e", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.690868Z", "iopub.status.busy": "2024-03-05T20:16:50.690753Z", "iopub.status.idle": "2024-03-05T20:16:50.694863Z", "shell.execute_reply": "2024-03-05T20:16:50.694526Z" } }, "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": 15, "id": "11aeaa70-44c0-42f9-86d7-740e3849a7a6", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:50.696720Z", "iopub.status.busy": "2024-03-05T20:16:50.696618Z", "iopub.status.idle": "2024-03-05T20:16:50.699954Z", "shell.execute_reply": "2024-03-05T20:16:50.699670Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "Deleted file: coefficients.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": "3.9.17" } }, "nbformat": 4, "nbformat_minor": 5 }