This is a brief analysis of the structure of the data contained herein.
To begin this exploratory analysis, first import libraries and define functions for plotting the data using matplotlib.
Importing some libraries to facilitate this exercise
from mpl_toolkits.mplot3d import Axes3D
from sklearn.preprocessing import StandardScaler
import matplotlib.pyplot as plt # plotting
import numpy as np # linear algebra
import os # accessing directory structure
import pandas as pd # data processing, CSV file I/O (e.g. pd.read_csv)There are 2 csv files in the current version of the dataset:
for dirname, _, filenames in os.walk('./kaggle/input'):
for filename in filenames:
if filename.endswith(".csv"):
print(os.path.join(dirname, filename))./kaggle/input/MPs.csv
./kaggle/input/Senators.csv
Next we define functions for plotting data.
# Distribution graphs (histogram/bar graph) of column data
def plotPerColumnDistribution(df, nGraphShown, nGraphPerRow):
nunique = df.nunique()
df = df[[col for col in df if nunique[col] > 1 and nunique[col] < 50]] # For displaying purposes, pick columns that have between 1 and 50 unique values
nRow, nCol = df.shape
columnNames = list(df)
nGraphRow = (nCol + nGraphPerRow - 1) / nGraphPerRow
plt.figure(num = None, figsize = (6 * nGraphPerRow, 8 * nGraphRow), dpi = 80, facecolor = 'w', edgecolor = 'k')
for i in range(min(nCol, nGraphShown)):
plt.subplot(nGraphRow, nGraphPerRow, i + 1)
columnDf = df.iloc[:, i]
if (not np.issubdtype(type(columnDf.iloc[0]), np.number)):
valueCounts = columnDf.value_counts()
valueCounts.plot.bar()
else:
columnDf.hist()
plt.ylabel('counts')
plt.xticks(rotation = 90)
plt.title(f'{columnNames[i]} (column {i})')
plt.tight_layout(pad = 1.0, w_pad = 1.0, h_pad = 1.0)
plt.show()# Correlation matrix
def plotCorrelationMatrix(df, graphWidth):
filename = df.dataframeName
df = df.dropna('columns') # drop columns with NaN
df = df[[col for col in df if df[col].nunique() > 1]] # keep columns where there are more than 1 unique values
if df.shape[1] < 2:
print(f'No correlation plots shown: The number of non-NaN or constant columns ({df.shape[1]}) is less than 2')
return
corr = df.corr()
plt.figure(num=None, figsize=(graphWidth, graphWidth), dpi=80, facecolor='w', edgecolor='k')
corrMat = plt.matshow(corr, fignum = 1)
plt.xticks(range(len(corr.columns)), corr.columns, rotation=90)
plt.yticks(range(len(corr.columns)), corr.columns)
plt.gca().xaxis.tick_bottom()
plt.colorbar(corrMat)
plt.title(f'Correlation Matrix for {filename}', fontsize=15)
plt.show()# Scatter and density plots
def plotScatterMatrix(df, plotSize, textSize):
df = df.select_dtypes(include =[np.number]) # keep only numerical columns
# Remove rows and columns that would lead to df being singular
df = df.dropna('columns')
df = df[[col for col in df if df[col].nunique() > 1]] # keep columns where there are more than 1 unique values
columnNames = list(df)
if len(columnNames) > 10: # reduce the number of columns for matrix inversion of kernel density plots
columnNames = columnNames[:10]
df = df[columnNames]
ax = pd.plotting.scatter_matrix(df, alpha=0.75, figsize=[plotSize, plotSize], diagonal='kde')
corrs = df.corr().values
for i, j in zip(*plt.np.triu_indices_from(ax, k = 1)):
ax[i, j].annotate('Corr. coef = %.3f' % corrs[i, j], (0.8, 0.2), xycoords='axes fraction', ha='center', va='center', size=textSize)
plt.suptitle('Scatter and Density Plot')
plt.show()Now we're ready to read in the data and use the plotting functions to visualize the data.
nRowsRead = None # specify 'None' if want to read whole file
# MPs.csv may have more rows in reality, but we are only loading/previewing the first 1000 rows
df1 = pd.read_csv('./kaggle/input/MPs.csv', delimiter=',', nrows = nRowsRead)
df1.dataframeName = 'MPs.csv'
nRow, nCol = df1.shape
print(f'There are {nRow} rows and {nCol} columns')There are 351 rows and 6 columns
Let's take a quick look at what the data looks like:
df1.head(5)| Member of Parliament | Photo | County | Constituency | Party | Status | |
|---|---|---|---|---|---|---|
| 0 | Hon. (Dr.) Keynan, Wehliye Adan, CBS, MP | http://www.parliament.go.ke/sites/default/file... | Wajir | Eldas | JP | Elected |
| 1 | Hon. Abdi, Yusuf Hassan | http://www.parliament.go.ke/sites/default/file... | Nairobi | Kamukunji | JP | Elected |
| 2 | Hon. Abdullah, Bashir Sheikh | http://www.parliament.go.ke/index.php/sites/de... | Mandera | Mandera North | JP | Elected |
| 3 | Hon. Abuor, Paul | http://www.parliament.go.ke/sites/default/file... | Migori | Rongo | ODM | Elected |
| 4 | Hon. Adagala, Beatrice Kahai | http://www.parliament.go.ke/sites/default/file... | Vihiga | Vihiga | ANC | Elected |
Distribution graphs (histogram/bar graph) of sampled columns:
Political Party and Election Status Distributions
plotPerColumnDistribution(df1, 10, 5)nRowsRead = None # specify 'None' if want to read whole file
# Senators.csv may have more rows in reality, but we are only loading/previewing the first 1000 rows
df2 = pd.read_csv('./kaggle/input/Senators.csv', delimiter=',', nrows = nRowsRead)
df2.dataframeName = 'Senators.csv'
nRow, nCol = df2.shape
print(f'There are {nRow} rows and {nCol} columns')There are 67 rows and 5 columns
Let's take a quick look at what the data looks like:
df2.head(5)| Senator | Photo | County | Party | Status | |
|---|---|---|---|---|---|
| 0 | Sen. (Dr.) Ali Abdullahi Ibrahim | http://www.parliament.go.ke/sites/default/file... | Wajir | JP | Elected |
| 1 | Sen. (Dr.) Inimah Getrude Musuruve | http://www.parliament.go.ke/sites/default/file... | N\/A | ODM | Nominated |
| 2 | Sen. (Dr.) Langat Christopher Andrew | http://www.parliament.go.ke/sites/default/file... | Bomet | JP | Elected |
| 3 | Sen. (Dr.) Milgo Alice Chepkorir | http://www.parliament.go.ke/sites/default/file... | N\/A | JP | Nominated |
| 4 | Sen. (Dr.) Zani Agnes Philomena | http://www.parliament.go.ke/sites/default/file... | N\/A | N\/A | Nominated |
Distribution graphs (histogram/bar graph) of sampled columns: Political Party and Election Status Distributions
plotPerColumnDistribution(df2[["Party","Status"]], 10, 5)- Jubilee has the tyranny of numbers in the current parliament
- ODM comes second
- Wiper third
- Some political party data is missing or the candindate was independent
git clone https://github.com/TralahM/parliamet-2017-dataset.git
cd parliamet-2017-dataset
