df['xvar'] = (df['x'l xmean)**2
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
Which part do I need to fix for running this code?
![个 ↓ o
# Calculate the mean of X and y
xmean = np.mean(X)
ymean = np.mean(y)
# Calculate the terms needed for the numator and denominator of beta
df['xycov'] = (df['X'] - xmean) * (df['y'] - ymean)
df['xvar'] = (df['x'1 - xmean)**2
# Calculate beta and alpha
beta = df['xycov'].sum() / df['xvar'].sum()
alpha = ymean - (beta * xmean)
print(f' alpha = {alpha}')
print(f' beta = {beta}')
KeyError
Traceback (most recent call last)
/usr/local/lib/python3.7/dist-packages/pandas/core/indexes/base.py in get_loc(self, key, method, tolerance)
try:
return self._engine.get_loc(casted_key)
except KeyError as err:
3360
-> 3361
3362
* 4 frames
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.PyobjectHashTable.get_item()
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.PyobjectHashTable.get_item()
KeyError: 'x'
The above exception was the direct cause of the following exception:
KeyError
/usr/local/lib/python3.7/dist-packages/pandas/core/indexes/base.py in get_loc(self, key, method, tolerance)
Traceback (most recent call last)
return self._engine.get_loc(casted_key)
except KeyError as err:
raise KeyError(key) from err
3361
3362
-> 3363
3364
3365
if is_scalar(key) and isna(key) and not self.hasnans:
KeyError: 'x'](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc5a50dc1-17fe-4f06-9b54-35228343592d%2F833fb628-5977-4114-8443-64821fb484d2%2F9172sva_processed.png&w=3840&q=75)
Transcribed Image Text:个 ↓ o
# Calculate the mean of X and y
xmean = np.mean(X)
ymean = np.mean(y)
# Calculate the terms needed for the numator and denominator of beta
df['xycov'] = (df['X'] - xmean) * (df['y'] - ymean)
df['xvar'] = (df['x'1 - xmean)**2
# Calculate beta and alpha
beta = df['xycov'].sum() / df['xvar'].sum()
alpha = ymean - (beta * xmean)
print(f' alpha = {alpha}')
print(f' beta = {beta}')
KeyError
Traceback (most recent call last)
/usr/local/lib/python3.7/dist-packages/pandas/core/indexes/base.py in get_loc(self, key, method, tolerance)
try:
return self._engine.get_loc(casted_key)
except KeyError as err:
3360
-> 3361
3362
* 4 frames
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.PyobjectHashTable.get_item()
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.PyobjectHashTable.get_item()
KeyError: 'x'
The above exception was the direct cause of the following exception:
KeyError
/usr/local/lib/python3.7/dist-packages/pandas/core/indexes/base.py in get_loc(self, key, method, tolerance)
Traceback (most recent call last)
return self._engine.get_loc(casted_key)
except KeyError as err:
raise KeyError(key) from err
3361
3362
-> 3363
3364
3365
if is_scalar(key) and isna(key) and not self.hasnans:
KeyError: 'x'
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