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import pandas as pd from sklearn.preprocessing import StandardScaler from sklearn.decomposition import PCA # Read in forestfires.csv fires = pd . read _ csv (
import pandas as pd
from sklearn.preprocessing import StandardScaler
from sklearn.decomposition import PCA
# Read in forestfires.csv
fires pdreadcsvforestfirescsv
# Create a new data frame with the columns
X firesFFMCDMCDC 'ISI', 'temp', RH 'wind', 'rain'
# Calculate the correlation matrix for the data in the data frame X
XCorr Xcorr
printXCorr
# Scale the data
scaler StandardScaler
firesScaled scaler.fittransformX
# Perform fourcomponent factor analysis on the scaled data
pca PCAncomponents
pca.fitfiresScaled
# Print the factors and the explained variance.
printFactors: pca.components
printExplained variance: pca.explainedvarianceratio
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