Assignment_2(Numpy_Fundamentals)_PIAIC70845.ipynb

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    "colab": {
      "name": "Assignment#2(Numpy Fundamentals) PIAIC77687.ipynb",
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  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "90wl1PKIbgeP"
      },
      "source": [
        "# Numpy_Assignment_2::"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "qeXf7aYTbgeR"
      },
      "source": [
        "## Question:1"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "-Ixx4wFMbgeS"
      },
      "source": [
        "### Convert a 1D array to a 2D array with 2 rows?"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "bKEg238YbgeT"
      },
      "source": [
        "#### Desired output::"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "ZMjCSUuibgeT"
      },
      "source": [
        "array([[0, 1, 2, 3, 4],\n",
        "        [5, 6, 7, 8, 9]])"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "YB19DLOgbgeU",
        "outputId": "c1771181-bafc-4e9b-8f19-ea46bc2f84e2"
      },
      "source": [
        "import numpy as np\r\n",
        "a = np.arange(10)\r\n",
        "b = a.reshape(2, 5)\r\n",
        "b"
      ],
      "execution_count": 7,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[0, 1, 2, 3, 4],\n",
              "       [5, 6, 7, 8, 9]])"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 7
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "Z0_9ZoG0bgeU"
      },
      "source": [
        "## Question:2"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "rTMWhFE1bgeV"
      },
      "source": [
        "###  How to stack two arrays vertically?"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "V_QFEqoObgeV"
      },
      "source": [
        "#### Desired Output::"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "33EtE6W0bgeV"
      },
      "source": [
        "array([[0, 1, 2, 3, 4],\n",
        "        [5, 6, 7, 8, 9],\n",
        "       [1, 1, 1, 1, 1],\n",
        "       [1, 1, 1, 1, 1]])"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "Ofx10JvCbgeW",
        "outputId": "8b870a69-c3fd-46fa-c605-41c10423e7e0"
      },
      "source": [
        "a = np.arange(10).reshape(2,5)\r\n",
        "b = np.ones((2,5),dtype= \"int32\")\r\n",
        "np.vstack((a,b))"
      ],
      "execution_count": 8,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[0, 1, 2, 3, 4],\n",
              "       [5, 6, 7, 8, 9],\n",
              "       [1, 1, 1, 1, 1],\n",
              "       [1, 1, 1, 1, 1]])"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 8
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "nCNTU2-UbgeW"
      },
      "source": [
        "## Question:3"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "sRG8thOsbgeW"
      },
      "source": [
        "### How to stack two arrays horizontally?"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "wagup3jrbgeX"
      },
      "source": [
        "#### Desired Output::"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "ZA5VQ3f7bgeX"
      },
      "source": [
        "array([[0, 1, 2, 3, 4, 1, 1, 1, 1, 1],\n",
        "       [5, 6, 7, 8, 9, 1, 1, 1, 1, 1]])"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "pC2YQRUPbgeX",
        "outputId": "283ec035-85f1-4733-9392-886c3531e4e0"
      },
      "source": [
        "c = np.arange(10).reshape(2,5)\r\n",
        "d = np.ones((2,5),dtype = \"int32\")\r\n",
        "np.hstack((c,d))"
      ],
      "execution_count": 9,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[0, 1, 2, 3, 4, 1, 1, 1, 1, 1],\n",
              "       [5, 6, 7, 8, 9, 1, 1, 1, 1, 1]])"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 9
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "itHm5gfMbgeY"
      },
      "source": [
        "## Question:4"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "Hbcu_69lbgeY"
      },
      "source": [
        "### How to convert an array of arrays into a flat 1d array?"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "dCHcamGZbgeY"
      },
      "source": [
        "#### Desired Output::"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "VK-8XPScbgeZ"
      },
      "source": [
        "array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "wtFenW1QbgeZ",
        "outputId": "dc765434-b99c-4517-d9ba-a086052ab6bf"
      },
      "source": [
        "e = np.arange(10).reshape(5,2)\r\n",
        "e.ravel()"
      ],
      "execution_count": 10,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 10
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "CI71is5fbgeZ"
      },
      "source": [
        "## Question:5"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "2wO6mTGLbgea"
      },
      "source": [
        "### How to Convert higher dimension into one dimension?"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "7VJ5yMMvbgea"
      },
      "source": [
        "#### Desired Output::"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "E6am6hiUbgea"
      },
      "source": [
        "array([ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14])"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "htWUYVcnbgea",
        "outputId": "171ae2a8-facb-4f43-c111-74fdf17ce4ff"
      },
      "source": [
        "f = np.arange(15).reshape(5,3)\r\n",
        "f.ravel()"
      ],
      "execution_count": 11,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([ 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14])"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 11
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "9h4ILpU7bgeb"
      },
      "source": [
        "## Question:6"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "w5-7mIDVbgeb"
      },
      "source": [
        "### Convert one dimension to higher dimension?"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "o2cTjEi2bgeb"
      },
      "source": [
        "#### Desired Output::"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "YRs_q-4Obgeb"
      },
      "source": [
        "array([[ 0, 1, 2],\n",
        "[ 3, 4, 5],\n",
        "[ 6, 7, 8],\n",
        "[ 9, 10, 11],\n",
        "[12, 13, 14]])"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "rHJkXhW1bgec",
        "outputId": "aa006b24-9729-42a0-fc99-1e8aa2bce426"
      },
      "source": [
        "e = np.arange(15)\r\n",
        "e.reshape(5,3)"
      ],
      "execution_count": 12,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[ 0,  1,  2],\n",
              "       [ 3,  4,  5],\n",
              "       [ 6,  7,  8],\n",
              "       [ 9, 10, 11],\n",
              "       [12, 13, 14]])"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 12
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "0ee_I7Qebgec"
      },
      "source": [
        "## Question:7"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "M7S7UL-ebgec"
      },
      "source": [
        "### Create 5x5 an array and find the square of an array?"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "qlFEKN6Zbgec",
        "outputId": "d399ee65-0f54-4299-db13-cb80a5d38857"
      },
      "source": [
        "g = np.arange(25).reshape(5,5)\r\n",
        "g**2"
      ],
      "execution_count": 13,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[  0,   1,   4,   9,  16],\n",
              "       [ 25,  36,  49,  64,  81],\n",
              "       [100, 121, 144, 169, 196],\n",
              "       [225, 256, 289, 324, 361],\n",
              "       [400, 441, 484, 529, 576]])"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 13
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "9QQV-Sjwbged"
      },
      "source": [
        "## Question:8"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "nEBbYyIRbged"
      },
      "source": [
        "### Create 5x6 an array and find the mean?"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "e8SaYnVvbged",
        "outputId": "83eedaa6-88b4-42b8-a7f6-75a2dea3d292"
      },
      "source": [
        "h = np.arange(30).reshape(5,6)\r\n",
        "np.mean(h)"
      ],
      "execution_count": 14,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "14.5"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 14
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "rve_h_n1bgee"
      },
      "source": [
        "## Question:9"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "PDtnHY5Zbgee"
      },
      "source": [
        "### Find the standard deviation of the previous array in Q8?"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "zcxFAZgabgee",
        "outputId": "3edc657f-eaa0-48fe-ec59-8ef4d83d73ac"
      },
      "source": [
        "i = np.arange(30).reshape(5,6)\r\n",
        "np.std(i)"
      ],
      "execution_count": 15,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "8.65544144839919"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 15
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "u3bz9fOAbgee"
      },
      "source": [
        "## Question:10"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "eNDuvJhNbgef"
      },
      "source": [
        "### Find the median of the previous array in Q8?"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "GtJm2aRmbgef",
        "outputId": "4edab54d-e2c7-4bd2-f7ce-f75018e7bd69"
      },
      "source": [
        "j = np.arange(30).reshape(5,6)\r\n",
        "np.median(j)"
      ],
      "execution_count": 16,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "14.5"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 16
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "U1L2o7mjbgef"
      },
      "source": [
        "## Question:11"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "nbTKxDswbgef"
      },
      "source": [
        "### Find the transpose of the previous array in Q8?"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "70qOZwiWbgeg",
        "outputId": "ee53ed15-471b-4df9-8192-33ad3ae070fc"
      },
      "source": [
        "j.transpose()"
      ],
      "execution_count": 17,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[ 0,  6, 12, 18, 24],\n",
              "       [ 1,  7, 13, 19, 25],\n",
              "       [ 2,  8, 14, 20, 26],\n",
              "       [ 3,  9, 15, 21, 27],\n",
              "       [ 4, 10, 16, 22, 28],\n",
              "       [ 5, 11, 17, 23, 29]])"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 17
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "Dm84n8_xbgeg"
      },
      "source": [
        "## Question:12"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "iDK1tSVNbgeg"
      },
      "source": [
        "### Create a 4x4 an array and find the sum of diagonal elements?"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "vbHSakNLbgeg",
        "outputId": "03f754ac-e22d-4b36-d254-2ce5d08a7c56"
      },
      "source": [
        "k = np.arange(16).reshape(4,4)\r\n",
        "k.trace()\r\n"
      ],
      "execution_count": 18,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "30"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 18
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "99qwMEf3bgeh"
      },
      "source": [
        "## Question:13"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "HZrNSPZ0bgeh"
      },
      "source": [
        "### Find the determinant of the previous array in Q12?"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "yHDei4LEbgeh",
        "outputId": "d55d1cea-2d52-4980-afd0-48753d3ef135"
      },
      "source": [
        "l = np.arange(16).reshape(4,4)\r\n",
        "np.linalg.det(l)"
      ],
      "execution_count": 19,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "0.0"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 19
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "9h1cm_tkbgeh"
      },
      "source": [
        "## Question:14"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "FbdkUYKzbgeh"
      },
      "source": [
        "### Find the 5th and 95th percentile of an array?"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "ZhnrWgqKbgei",
        "outputId": "1921e2f8-6c99-4fc5-b918-6c2d9e372404"
      },
      "source": [
        "m = np.arange(30).reshape(5,6)\r\n",
        "print(np.percentile(m,5))\r\n",
        "print(np.percentile(m,95))"
      ],
      "execution_count": 20,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "1.4500000000000002\n",
            "27.549999999999997\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "AZ0tJy7nbgei"
      },
      "source": [
        "## Question:15"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "AXKRtEPpbgei"
      },
      "source": [
        "### How to find if a given array has any null values?"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "V971AGE3bgei",
        "outputId": "319a222d-0a28-4d9a-c620-8f84f57cb1ab"
      },
      "source": [
        "n = np.arange(30).reshape(5,6)\r\n",
        "np.isnan(n)"
      ],
      "execution_count": 21,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[False, False, False, False, False, False],\n",
              "       [False, False, False, False, False, False],\n",
              "       [False, False, False, False, False, False],\n",
              "       [False, False, False, False, False, False],\n",
              "       [False, False, False, False, False, False]])"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 21
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "FxDeWZ2bndR7"
      },
      "source": [
        ""
      ],
      "execution_count": null,
      "outputs": []
    }
  ]
}