Question
i am trying to solve the following questions but i get an error when trying to merge the dataframes that i separate, the error is
i am trying to solve the following questions but i get an error when trying to merge the dataframes that i separate, the error is at the bottom, i am using python:
import matplotlib.pyplot as plt
import scipy.stats as stats
import statsmodels.api as sm
from statsmodels.formula.api import ols
import statsmodels.stats.multicomp as mc
import pandas as pd
pd.set_option('display.width', 1000)
# 1. In our dataset, there is a predation index (1 is minimum, 5 is maximum). Use ANOVA to determine if there is a significant difference in body weight (response) of all mammal species based on predation index (independent). Assuming there is a difference, conduct Tukey's HSD test to determine which species of mammals are significantly different from each other? Interpret the results of your tests.
# Define the column names as a list
sleep_colummn_names = ['Species', 'body_weight', 'brain_weight', 'nondream_sleep', 'dream_sleep', 'total_sleep', 'max_life_span', 'gestation_time', 'predation_risk', 'sleep_exposure', 'danger_index']
# Read in the csv file with the defined column names
sleep_dataframe = pd.read_csv('sleep.csv', names=sleep_colummn_names, header=None, skiprows=1)
# Print the first few rows of the dataframe to check that it was created correctly
print(sleep_dataframe.head())
# check dataframe datatypes
print(" Dataframe data types: ", sleep_dataframe.dtypes)
# check for null values
print(" Checking for null values in dataframe: ", sleep_dataframe.isnull())
# Choose only needed columns for each question
q1_data = sleep_dataframe[['Species', 'body_weight', 'predation_risk']]
print(" Dataframe for question one: ", q1_data)
q2_data = sleep_dataframe[['Species', 'body_weight', 'sleep_exposure']]
print(" Dataframe for question two: ", q2_data)
q3_data = sleep_dataframe[['Species', 'body_weight', 'brain_weight']]
print(" Dataframe for question three: ", q3_data)
q4_data = sleep_dataframe[['Species', 'total_sleep', 'max_life_span']]
print(" Dataframe for question four: ", q4_data)
print(q1_data.columns)
print(q2_data.columns)
print(q3_data.columns)
print(q4_data.columns)
# get all sub dataframes and merge into one
merged_data = q1_data.merge(q2_data, on='Species', validate='one_to_one').merge(q3_data, on=['Species', 'body_weight'], validate='one_to_one').merge(q4_data, on=['Species', 'total_sleep', 'max_life_span'], validate='one_to_one')
print(merged_data)
Traceback (most recent call last): File "C:\Python39\lib unpy.py", line 197, in _run_module_as_main return _run_code(code, main_globals, None, File "C:\Python39\lib unpy.py", line 87, in _run_code exec(code, run_globals) File "c:\Users\pimpd\.vscode\extensions\ms-python.python-2023.2.0\pythonFiles\lib\python\debugpy\__main__.py", line 39, in
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