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Samenvatting applied data science (minor) $6.41
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  3. Hogeschool Windesheim (HW)
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  5. Applied Data Science (FCMDS.ADS.01_2223)

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Samenvatting applied data science (minor)
 5 purchases
  • Course
  • Applied Data Science (FCMDS.ADS.01_2223)
  • Institution
  • Hogeschool Windesheim (HW)
  • Book
  • Introduction to Machine Learning with Python

Samenvatting voor het vak Applied data science van de minor data science gegeven op de hogeschool Windesheim. Bevat alle les stof van de topics 3 t/m 15 m.u.v. 14.

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Document information

  • No
  • Stof behorend bij vak
  • November 8, 2022
  • 32
  • 2022/2023
  • Summary

Subjects

  • minor
  • applied data science
  • data science
  • programmeren
  • hogeschool windesheim
  • windesheim
  • datacamp

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Written for

  • Hogeschool Windesheim (HW)
  • Minor Data Science
  • Applied Data Science (FCMDS.ADS.01_2223)
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Content preview

Applied data science
Topic 3 Importing data
Topic 4 Basic statistics and visualization
Topic 5 Cleaning data
Topic 6 Joining data
Topic 7 Introduction to machine learning
Topic 8 Introduction to supervised learning
Topic 9 Feature engineering
Topic 10 k-Nearest neighbors
Topic 11 Linear models
Topic 12 Decision trees
Topic 13 Ensembles of decision trees
Topic 15 Model evaluation and improvement

, Topic 3 Importing data
nieuwe naam 1 = pd.read_excel(‘bestandsnaam.xlsx’, skiprows = aantal rijen overslaan (-1),
sheet_name= ‘naam tabblad’) -> importeren van een Excel-bestand met een ander
tabblad dan de eerste en een aantal lege rijen




pivot table naam = pivot table naam [[jaartal 1, jaartal 2]] -> het filteren van kolommen (jaartallen)
uit de pivot table

, Berekenen gegeven met voorwaarde
nieuwe naam 1 = lijstnaam.loc[lijstnaam[‘kolomnaam’] == ‘voorwaarde’, :]
nieuwe naam 1[‘kolom met cijfers voor berekening’].mean()




Berekenen gegeven met twee voorwaarden
nieuwe naam 1 = lijstnaam.loc[(lijstnaam[‘kolomnaam voorwaarde 1’] == voorwaarde 1) & (lijstnaam
[‘kolomnaam voorwaarde 2’] == voorwaarde 2), :]
nieuwe naam 1[‘kolom met cijfers voor berekening’].mean()




Voor de voorwaarden geldt dat het als het tekst is tussen haakjes (‘’) geplaats moet worden, bij
getallen hoeft dit niet.

Importeren gegevens cbs
import cbsodata
nieuwe naam 1 = cbsodata.get_data(‘laatste letter en cijfer combinatie’)

, Topic 4 Basic statistics and visualization
Histogram van een kolom
DataFrame naam[‘kolomnaam’].hist(bins=aantal bins)




Boxplot van een kolom
plt.boxplot(DataFrame naam[‘kolomnaam’])
plt.show()

Scatter plot van alle gegevens
import seaborn as sns
sns.pairplot(DataFrame naam)
plt.show()

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