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Update Numpy Test.ipynb #1

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46 changes: 25 additions & 21 deletions 06 Lesson Numpy/Numpy Test.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -36,15 +36,15 @@
"id": "UelVcRZ-sAlh"
},
"outputs": [],
"source": []
"source": [import numpy as np]
},
{
"cell_type": "markdown",
"metadata": {
"colab_type": "text",
"id": "bu2Riq11sAlm"
},
"source": [
"source": [np.zeros(10)
"#### Create an array of 10 zeros "
]
},
Expand Down Expand Up @@ -77,7 +77,7 @@
"colab_type": "text",
"id": "qOm0No5tsAlt"
},
"source": [
"source": [np.ones(10)
"#### Create an array of 10 ones"
]
},
Expand Down Expand Up @@ -110,7 +110,7 @@
"colab_type": "text",
"id": "PmtViTmxsAly"
},
"source": [
"source": [ np.ones(10)*5
"#### Create an array of 10 fives"
]
},
Expand All @@ -132,7 +132,7 @@
"colab_type": "text",
"id": "o3GE-RG2sAl2"
},
"source": [
"source": [np.arange(10,51)
"#### Create an array of the integers from 10 to 50"
]
},
Expand Down Expand Up @@ -167,7 +167,7 @@
"colab_type": "text",
"id": "8W693KT0sAmA"
},
"source": [
"source": [np.arange(10,51,2)
"#### Create an array of all the even integers from 10 to 50"
]
},
Expand Down Expand Up @@ -201,7 +201,8 @@
"colab_type": "text",
"id": "O1WwNPlXsAmN"
},
"source": [
"source": [a = np.array([[0,1,2],[3,4,5],[6,7,8]])
np.transpose (a)
"#### Create a 3x3 matrix with values ranging from 0 to 8"
]
},
Expand Down Expand Up @@ -236,7 +237,8 @@
"colab_type": "text",
"id": "p3ch73fusAma"
},
"source": [
"source": [x = np.eye(3)
print(x)
"#### Create a 3x3 identity matrix"
]
},
Expand Down Expand Up @@ -271,7 +273,7 @@
"colab_type": "text",
"id": "TwNdLZ8LsAml"
},
"source": [
"source": [np.random.rand(1)
"#### Use NumPy to generate a random number between 0 and 1"
]
},
Expand Down Expand Up @@ -304,7 +306,7 @@
"colab_type": "text",
"id": "mqAJJt1FsAmr"
},
"source": [
"source": [np.random.randn(25)
"#### Use NumPy to generate an array of 25 random numbers sampled from a standard normal distribution"
]
},
Expand Down Expand Up @@ -341,7 +343,8 @@
"colab_type": "text",
"id": "L1iG-GdnsAmw"
},
"source": [
"source": [X_test = np.linespace(0,1,100)
X_test
"#### Create the following matrix:"
]
},
Expand Down Expand Up @@ -393,7 +396,7 @@
"colab_type": "text",
"id": "KBZEt6tlsAm2"
},
"source": [
"source": [np.linspace(0,1,20)
"#### Create an array of 20 linearly spaced points between 0 and 1:"
]
},
Expand Down Expand Up @@ -429,7 +432,8 @@
"colab_type": "text",
"id": "AC2rcInYsAnB"
},
"source": [
"source": [mat = np.arange(1,26).reashape(5,5)
mat
"## Numpy Indexing and Selection\n",
"\n",
"Now you will be given a few matrices, and be asked to replicate the resulting matrix outputs:"
Expand Down Expand Up @@ -471,7 +475,7 @@
"id": "_6ok-tAysAnG"
},
"outputs": [],
"source": [
"source": [ mat[2:,1:]
"# WRITE CODE HERE THAT REPRODUCES THE OUTPUT OF THE CELL BELOW\n",
"# BE CAREFUL NOT TO RUN THE CELL BELOW, OTHERWISE YOU WON'T\n",
"# BE ABLE TO SEE THE OUTPUT ANY MORE"
Expand Down Expand Up @@ -506,7 +510,7 @@
"id": "B4Mtdoj6sAnR"
},
"outputs": [],
"source": [
"source": [
"# WRITE CODE HERE THAT REPRODUCES THE OUTPUT OF THE CELL BELOW AS AN ARRAY\n",
"# BE CAREFUL NOT TO RUN THE CELL BELOW, OTHERWISE YOU WON'T\n",
"# BE ABLE TO SEE THE OUTPUT ANY MORE"
Expand All @@ -528,7 +532,7 @@
"output_type": "execute_result"
}
],
"source": []
"source": [mat [3][4]]
},
{
"cell_type": "code",
Expand All @@ -539,7 +543,7 @@
"id": "h8AJ_bd-sAna"
},
"outputs": [],
"source": [
"source": [ mat [0:3,1].reshape(3,1)
"# WRITE CODE HERE THAT REPRODUCES THE OUTPUT OF THE CELL BELOW\n",
"# BE CAREFUL NOT TO RUN THE CELL BELOW, OTHERWISE YOU WON'T\n",
"# BE ABLE TO SEE THE OUTPUT ANY MORE"
Expand Down Expand Up @@ -581,7 +585,7 @@
"id": "ngFWEzPPsAnp"
},
"outputs": [],
"source": [
"source": [ mat [4]
"# WRITE CODE HERE THAT REPRODUCES THE OUTPUT OF THE CELL BELOW\n",
"# BE CAREFUL NOT TO RUN THE CELL BELOW, OTHERWISE YOU WON'T\n",
"# BE ABLE TO SEE THE OUTPUT ANY MORE"
Expand Down Expand Up @@ -621,7 +625,7 @@
"id": "y0JlER1WsAnx"
},
"outputs": [],
"source": [
"source": [mat [3]
"# WRITE CODE HERE THAT REPRODUCES THE OUTPUT OF THE CELL BELOW\n",
"# BE CAREFUL NOT TO RUN THE CELL BELOW, OTHERWISE YOU WON'T\n",
"# BE ABLE TO SEE THE OUTPUT ANY MORE"
Expand Down Expand Up @@ -669,7 +673,7 @@
"colab_type": "text",
"id": "jBIAJoezsAn3"
},
"source": [
"source": [np.sum(mat)
"#### Get the sum of all the values in mat"
]
},
Expand Down Expand Up @@ -734,7 +738,7 @@
"colab_type": "text",
"id": "UKEr75mxsAn_"
},
"source": [
"source": [mat.sum(axis=0)
"#### Get the sum of all the columns in mat"
]
},
Expand Down