Heatmap
Customer Satisfaction Heatmap
Light theme heatmap showing CSAT scores by department
Output
Python
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.colors import LinearSegmentedColormap
from matplotlib.patches import FancyBboxPatch
fig, ax = plt.subplots(figsize=(12, 8), facecolor='#ffffff')
ax.set_facecolor('#ffffff')
np.random.seed(42)
categories = ['Product', 'Service', 'Delivery', 'Price', 'Support']
regions = ['North', 'South', 'East', 'West', 'Central']
data = np.random.uniform(3, 5, (len(regions), len(categories)))
colors = ['#1e293b', '#ca8a04', '#eab308', '#84cc16', '#22c55e']
cmap = LinearSegmentedColormap.from_list('csat', colors, N=256)
cell_w, cell_h = 0.88, 0.82
for i in range(len(regions)):
for j in range(len(categories)):
val = data[i, j]
rect = FancyBboxPatch((j - cell_w/2, i - cell_h/2), cell_w, cell_h,
boxstyle="round,pad=0.02,rounding_size=0.12",
facecolor=cmap((val-1)/4), edgecolor='#e2e8f0', linewidth=1.5)
ax.add_patch(rect)
ax.text(j, i, f'{val:.1f}', ha='center', va='center', color='#1e293b', fontsize=11, fontweight='bold')
ax.set_xlim(-0.5, len(categories)-0.5)
ax.set_ylim(-0.5, len(regions)-0.5)
ax.set_aspect('equal')
ax.invert_yaxis()
ax.set_xticks(range(len(categories)))
ax.set_yticks(range(len(regions)))
ax.set_xticklabels(categories, color='#64748b', fontsize=10, fontweight='500')
ax.set_yticklabels(regions, color='#1e293b', fontsize=11, fontweight='500')
sm = plt.cm.ScalarMappable(cmap=cmap, norm=plt.Normalize(1, 5))
cbar = plt.colorbar(sm, ax=ax, shrink=0.8, pad=0.02)
cbar.set_label('CSAT Score', color='#1e293b', fontsize=11)
cbar.outline.set_edgecolor('#e2e8f0')
plt.setp(plt.getp(cbar.ax.axes, 'yticklabels'), color='#64748b')
for spine in ax.spines.values(): spine.set_visible(False)
ax.tick_params(length=0)
ax.set_title('Customer Satisfaction by Region', fontsize=18, color='#1e293b', fontweight='bold', pad=20)
plt.tight_layout()
plt.show()
Library
Matplotlib
Category
Heatmaps & Density
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