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DataCamp: Importing Data in Python (Part 1)
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import numpy | |
# Print the keys of the MATLAB dictionary | |
print(mat.keys()) | |
# Print the type of the value corresponding to the key 'CYratioCyt' | |
print(type(mat['CYratioCyt'])) | |
# Print the shape of the value corresponding to the key 'CYratioCyt' | |
print(numpy.shape(mat['CYratioCyt'])) | |
# Subset the array and plot it | |
data = mat['CYratioCyt'][25, 5:] | |
fig = plt.figure() | |
plt.plot(data) | |
plt.xlabel('time (min.)') | |
plt.ylabel('normalized fluorescence (measure of expression)') | |
plt.show() |
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from sqlalchemy import create_engine | |
import pandas as pd | |
engine = create_engine('sqlite:///Chinook.sqlite') | |
# Open engine in context manager | |
# Perform query and save results to DataFrame: df | |
with engine.connect() as con: | |
rs = con.execute('SELECT LastName, Title FROM Employee') | |
df = pd.DataFrame(rs.fetchmany(size=3)) | |
df.columns = rs.keys() | |
# Print the length of the DataFrame df | |
print(len(df)) | |
# Print the head of the DataFrame df | |
print(df.head()) |
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# Import packages | |
from sqlalchemy import create_engine | |
import pandas as pd | |
# Create engine: engine | |
engine = create_engine('sqlite:///Chinook.sqlite') | |
# Execute query and store records in DataFrame: df | |
df = pd.read_sql_query('SELECT * FROM Album', engine) | |
# Print head of DataFrame | |
print(df.head()) |
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