{ "cells": [ { "cell_type": "markdown", "id": "2f04eee0-5928-4e74-a754-6dc2e528810c", "metadata": {}, "source": [ "# RepliTali" ] }, { "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": "2024-03-05T21:23:17.878097Z", "iopub.status.busy": "2024-03-05T21:23:17.877688Z", "iopub.status.idle": "2024-03-05T21:23:19.187762Z", "shell.execute_reply": "2024-03-05T21:23:19.187450Z" } }, "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": "2024-03-05T21:23:19.189770Z", "iopub.status.busy": "2024-03-05T21:23:19.189598Z", "iopub.status.idle": "2024-03-05T21:23:19.198545Z", "shell.execute_reply": "2024-03-05T21:23:19.198290Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "class RepliTali(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.RepliTali)" ] }, { "cell_type": "code", "execution_count": 3, "id": "78536494-f1d9-44de-8583-c89a310d2307", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T21:23:19.200146Z", "iopub.status.busy": "2024-03-05T21:23:19.200045Z", "iopub.status.idle": "2024-03-05T21:23:19.201727Z", "shell.execute_reply": "2024-03-05T21:23:19.201489Z" } }, "outputs": [], "source": [ "model = pya.models.RepliTali()" ] }, { "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": "2024-03-05T21:23:19.203290Z", "iopub.status.busy": "2024-03-05T21:23:19.203195Z", "iopub.status.idle": "2024-03-05T21:23:19.204958Z", "shell.execute_reply": "2024-03-05T21:23:19.204726Z" } }, "outputs": [], "source": [ "model.metadata[\"clock_name\"] = \"replitali\"\n", "model.metadata[\"data_type\"] = \"DNA methylation\" # Paper: Both models use DNA methylation at CpGs in common partially methylated domains.\n", "model.metadata[\"species\"] = \"Homo sapiens\" # Paper: The models were developed in primary human cells.\n", "model.metadata[\"year\"] = 2022\n", "model.metadata[\"approved_by_author\"] = \"⌛\"\n", "model.metadata[\"citation\"] = \"Endicott, J.L., Nolte, P.A., Shen, H. & Laird, P.W. Cell division drives DNA methylation loss in late-replicating domains in primary human cells. Nature Communications 13, 6659 (2022).\"\n", "model.metadata[\"doi\"] = \"https://doi.org/10.1038/s41467-022-34268-8\"\n", "model.metadata[\"notes\"] = \"Final RepliTali model estimating relative cumulative replicative history from methylation in common partially methylated domains; it was fitted to normalized population doublings across serially cultured primary human cells.\"\n", "model.metadata[\"research_only\"] = None\n", "model.metadata[\"tissue\"] = [\"cultured primary human cells\"] # Paper: Training pooled serially cultured primary fibroblasts, keratinocytes, endothelial cells and vascular smooth-muscle cells.\n", "model.metadata[\"predicts\"] = [\"replicative history\"] # Paper: RepliTali estimates relative replicative histories of human cells and tissues.\n", "model.metadata[\"training_target\"] = [\"population doublings\"] # Paper: The final model was trained on normalized PDs across all primary cell lines.\n", "model.metadata[\"unit\"] = [\"population doublings\"] # Paper: The calibration outcome is cumulative population doublings.\n", "model.metadata[\"model_type\"] = \"elastic net regression\" # Paper: Both the starting-PD normalizer and final RepliTali use elastic-net regression with alpha 0.5.\n", "model.metadata[\"platform\"] = [\"Illumina EPIC\"] # Paper: Training methylation was measured using the Infinium MethylationEPIC array.\n", "model.metadata[\"population\"] = \"human cell cultures\" # Paper: Seven primary human cell cultures were profiled; final-model samples were split into 122 training and 60 test observations.\n", "model.metadata[\"journal\"] = \"Nature Communications\"\n", "model.metadata[\"last_author\"] = \"Peter W. Laird\"\n", "model.metadata[\"n_features\"] = 87\n", "model.metadata[\"citations\"] = 86\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": "b5a70f6a-5e93-4edc-bc18-61ac7e4ca5c4", "metadata": {}, "source": [ "#### Download GitHub repository" ] }, { "cell_type": "code", "execution_count": 5, "id": "a3bfdc61-83c7-4cdc-a977-069dd0ff4f83", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T21:23:19.206465Z", "iopub.status.busy": "2024-03-05T21:23:19.206367Z", "iopub.status.idle": "2024-03-05T21:23:20.034759Z", "shell.execute_reply": "2024-03-05T21:23:20.034305Z" } }, "outputs": [ { "data": { "text/plain": [ "0" ] }, "execution_count": 5, "metadata": {}, "output_type": "execute_result" } ], "source": [ "github_url = \"https://github.com/jamieendicott/Nature_Comm_2022.git\"\n", "github_folder_name = github_url.split('/')[-1].split('.')[0]\n", "os.system(f\"git clone {github_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": "2024-03-05T21:23:20.037514Z", "iopub.status.busy": "2024-03-05T21:23:20.037352Z", "iopub.status.idle": "2024-03-05T21:23:20.042602Z", "shell.execute_reply": "2024-03-05T21:23:20.042261Z" } }, "outputs": [], "source": [ "df = pd.read_csv('Nature_Comm_2022/RepliTali/RepliTali_coefs.csv')\n", "df['feature'] = df['Coefficient']\n", "df['coefficient'] = df['Value']\n", "\n", "model.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": 7, "id": "e09b3463-4fd4-41b1-ac21-e63ddd223fe0", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T21:23:20.045055Z", "iopub.status.busy": "2024-03-05T21:23:20.044888Z", "iopub.status.idle": "2024-03-05T21:23:20.047654Z", "shell.execute_reply": "2024-03-05T21:23:20.047292Z" } }, "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": 8, "id": "d7f43b99-26f2-4622-9a76-316712058877", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T21:23:20.050232Z", "iopub.status.busy": "2024-03-05T21:23:20.050084Z", "iopub.status.idle": "2024-03-05T21:23:20.052993Z", "shell.execute_reply": "2024-03-05T21:23:20.052627Z" } }, "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": "2024-03-05T21:23:20.055112Z", "iopub.status.busy": "2024-03-05T21:23:20.054968Z", "iopub.status.idle": "2024-03-05T21:23:20.056852Z", "shell.execute_reply": "2024-03-05T21:23:20.056544Z" } }, "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": "2024-03-05T21:23:20.058779Z", "iopub.status.busy": "2024-03-05T21:23:20.058652Z", "iopub.status.idle": "2024-03-05T21:23:20.060476Z", "shell.execute_reply": "2024-03-05T21:23:20.060200Z" } }, "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": "2024-03-05T21:23:20.062384Z", "iopub.status.busy": "2024-03-05T21:23:20.062276Z", "iopub.status.idle": "2024-03-05T21:23:20.064009Z", "shell.execute_reply": "2024-03-05T21:23:20.063736Z" } }, "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": "2024-03-05T21:23:20.065766Z", "iopub.status.busy": "2024-03-05T21:23:20.065654Z", "iopub.status.idle": "2024-03-05T21:23:20.069055Z", "shell.execute_reply": "2024-03-05T21:23:20.068705Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "\n", "%==================================== Model Details ====================================%\n", "Model Attributes:\n", "\n", "training: True\n", "metadata: {'approved_by_author': '⌛',\n", " 'citation': 'Endicott, Jamie L., et al. \"Cell division drives DNA methylation '\n", " 'loss in late-replicating domains in primary human cells.\" Nature '\n", " 'Communications 13.1 (2022): 6659.',\n", " 'clock_name': 'replitali',\n", " 'data_type': 'methylation',\n", " 'doi': 'https://doi.org/10.1038/s41467-022-34268-8',\n", " 'notes': None,\n", " 'research_only': None,\n", " 'species': 'Homo sapiens',\n", " 'version': None,\n", " 'year': 2022}\n", "reference_values: None\n", "preprocess_name: None\n", "preprocess_dependencies: None\n", "postprocess_name: None\n", "postprocess_dependencies: None\n", "features: ['cg00077044', 'cg00150168', 'cg00454443', 'cg00495856', 'cg01616440', 'cg02137583', 'cg02220491', 'cg02392915', 'cg02583589', 'cg03179540', 'cg03421046', 'cg03786165', 'cg03988540', 'cg04155630', 'cg04390831', 'cg04698728', 'cg05635798', 'cg05662956', 'cg05898730', 'cg06001519', 'cg06003656', 'cg06029627', 'cg06113963', 'cg06417611', 'cg06530442', 'cg06725108', 'cg06792538', 'cg06944758', 'cg07724309', 'cg08111618']... [Total elements: 87]\n", "base_model_features: None\n", "\n", "%==================================== Model Details ====================================%\n", "Model Structure:\n", "\n", "base_model: LinearModel(\n", " (linear): Linear(in_features=87, out_features=1, bias=True)\n", ")\n", "\n", "%==================================== Model Details ====================================%\n", "Model Parameters and Weights:\n", "\n", "base_model.linear.weight: [-0.37647414207458496, -4.204704761505127, -1.413773775100708, -1.72621750831604, -0.07973441481590271, 8.181479454040527, -0.024885866791009903, -5.290876865386963, -0.03167755529284477, -2.6441094875335693, -0.7813723087310791, -0.9527625441551208, 3.7167017459869385, -0.09135447442531586, -0.024930506944656372, -6.9897050857543945, -1.5100187063217163, -0.06429270654916763, -2.511181354522705, 2.800859212875366, 2.344932794570923, -0.000938242010306567, -8.189630508422852, -2.3566792011260986, -3.3855528831481934, -4.197580814361572, -0.6439054608345032, -6.865860462188721, 0.1207914724946022, -0.00893024355173111]... [Tensor of shape torch.Size([1, 87])]\n", "base_model.linear.bias: tensor([101.5896])\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": "2024-03-05T21:23:20.070702Z", "iopub.status.busy": "2024-03-05T21:23:20.070615Z", "iopub.status.idle": "2024-03-05T21:23:20.074057Z", "shell.execute_reply": "2024-03-05T21:23:20.073797Z" } }, "outputs": [ { "data": { "text/plain": [ "tensor([[133.0796],\n", " [204.0084],\n", " [118.1621],\n", " [ 37.6353],\n", " [ 79.4020],\n", " [134.4028],\n", " [166.1542],\n", " [ 18.4314],\n", " [ 38.6508],\n", " [100.6297]], 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": "2024-03-05T21:23:20.075679Z", "iopub.status.busy": "2024-03-05T21:23:20.075595Z", "iopub.status.idle": "2024-03-05T21:23:20.077901Z", "shell.execute_reply": "2024-03-05T21:23:20.077649Z" } }, "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": "2024-03-05T21:23:20.079377Z", "iopub.status.busy": "2024-03-05T21:23:20.079303Z", "iopub.status.idle": "2024-03-05T21:23:20.085395Z", "shell.execute_reply": "2024-03-05T21:23:20.085133Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "Deleted folder: Nature_Comm_2022\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 }