Leave One Out cross-validation.ipynb

{
 "cells": [
  {
   "attachments": {
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i6urqwr/9u68gddX8kYRHf9j7l129ilrTt/Bg/vea11N5+iQAYGnl2UuOPJi6ClFPoRXy9yrUZ/Av/vztrC9pO0wYHEREJIRzHEREJITBQUREQhgcREQkhMFBRERCGBxERCSEwUFEREIYHEREJITBQUREQhgcREQkhMFBRERCGBxERCSEwUFEREIYHEREJOT/AYarJrvrl7uQAAAAAElFTkSuQmCC"
    }
   },
   "cell_type": "markdown",
   "id": "490df6d5",
   "metadata": {},
   "source": [
    "![image.png](attachment:image.png)"
   ]
  },
  {
   "attachments": {
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BGLRERIIxaImIBGPQEhEJxqAlIhKMQUtEJBiDlohIMAYtEZFgDFoiIsEYtEREgjFoiYgEY9ASEQn2/0XhInT4Du6sAAAAAElFTkSuQmCC"
    }
   },
   "cell_type": "markdown",
   "id": "082b2656",
   "metadata": {},
   "source": [
    "![image.png](attachment:image.png)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "a392ea6b",
   "metadata": {},
   "outputs": [],
   "source": [
    "from sklearn.datasets import load_iris\n",
    "from sklearn.ensemble import RandomForestClassifier\n",
    "from sklearn.model_selection import LeaveOneOut,cross_val_score\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "a3f2acd7",
   "metadata": {},
   "outputs": [],
   "source": [
    "iris=load_iris()\n",
    "X=iris.data\n",
    "Y=iris.target\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "e4915ae3",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Cross Validation Scores are [1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1.\n",
      " 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1.\n",
      " 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 0. 1.\n",
      " 0. 1. 1. 1. 1. 0. 1. 1. 1. 1. 1. 0. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1.\n",
      " 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 0. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 0.\n",
      " 1. 1. 1. 1. 1. 1. 1. 1. 1. 0. 1. 1. 1. 0. 0. 1. 1. 1. 0. 1. 1. 1. 1. 1.\n",
      " 1. 1. 1. 1. 1. 1.]\n",
      "Average Cross Validation score :0.9333333333333333\n"
     ]
    }
   ],
   "source": [
    "loo=LeaveOneOut()\n",
    "tree=RandomForestClassifier(n_estimators=10,max_depth=5,n_jobs=-1)\n",
    "score=cross_val_score(tree,X,Y,cv=loo)\n",
    "print(\"Cross Validation Scores are {}\".format(score))\n",
    "print(\"Average Cross Validation score :{}\".format(score.mean()))"
   ]
  }
 ],
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