Skip to content

Instantly share code, notes, and snippets.

@SandieIJ
Created April 23, 2020 23:16
Show Gist options
  • Save SandieIJ/98faad2c7095594d5c885f909095bc05 to your computer and use it in GitHub Desktop.
Save SandieIJ/98faad2c7095594d5c885f909095bc05 to your computer and use it in GitHub Desktop.
Display the source blob
Display the rendered blob
Raw
{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**RESHAPING AND NORMALIZING THE DATA**\n",
"\n",
"It is important to normalize your data before running any implementation of PCA to avoid important information about your dataset being dropped and thus reducing the ability of your model to learn better general patterns down the line"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"from sklearn.decomposition import PCA\n",
"from sklearn.preprocessing import StandardScaler\n",
"\n",
"image_shape = shape(raw_training_x[0])\n",
"\n",
"pca_x = np.reshape(raw_training_x, (24000,96))\n",
"\n",
"scaler = StandardScaler()\n",
"scaler.fit(pca_x)\n",
"scaled_x = scaler.transform(pca_x)"
]
}
],
"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": "3.7.4"
}
},
"nbformat": 4,
"nbformat_minor": 2
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment