Analytics Assignment - Cluster analysis

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Aditya Dashora

Analytics Assignment on Cluster

Dados e análise

I I I T B – B US I N E S S A N A L Y T I C S
CLUSTER ANALYSIS
ASSIGNMENT

DATA DESCRIPTION
1. FRESH(Continuous)
2. MILK (Continuous)
3. GROCERY(Continuous)
4. FROZEN(Continuous)
5. DETERGENTS_PAPER(Continuous)
6. DELICATESSEN(Continuous)
7. CHANNEL(Nominal)
8. REGION(Nominal)

STEPS
Uni-variate
Analysis
Scaling
Cluster
Identification
Cluster
Plotting

UNI-VARIATE ANALYSIS
Channel Region Fresh Milk
Min. :1.000 Min. :1.000 Min. : 3 Min. : 55
1st Qu.:1.000 1st Qu.:2.000 1st Qu.: 3128 1st Qu.: 1533
Median :1.000 Median :3.000 Median : 8504 Median : 3627
Mean :1.323 Mean :2.543 Mean : 12000 Mean : 5796
3rd Qu.:2.000 3rd Qu.:3.000 3rd Qu.: 16934 3rd Qu.: 7190
Max. :2.000 Max. :3.000 Max. :112151 Max. :73498
Grocery Frozen Detergents_Paper
Min. : 3 Min. : 25.0 Min. : 3.0
1st Qu.: 2153 1st Qu.: 742.2 1st Qu.: 256.8
Median : 4756 Median : 1526.0 Median : 816.5
Mean : 7951 Mean : 3071.9 Mean : 2881.5
3rd Qu.:10656 3rd Qu.: 3554.2 3rd Qu.: 3922.0
Max. :92780 Max. :60869.0 Max. :40827.0
Delicassen
Min. : 3.0
1st Qu.: 408.2
Median : 965.5
Mean : 1524.9
3rd Qu.: 1820.2
Max. :47943.0

UNI-VARIATE ANALYSIS (SCALE)
Channel Region Fresh
Min. :-0.6895 Min. :-1.9931 Min. :-0.9486
1st Qu.:-0.6895 1st Qu.:-0.7015 1st Qu.:-0.7015
Median :-0.6895 Median : 0.5900 Median :-0.2764
Mean : 0.0000 Mean : 0.0000 Mean : 0.0000
3rd Qu.: 1.4470 3rd Qu.: 0.5900 3rd Qu.: 0.3901
Max. : 1.4470 Max. : 0.5900 Max. : 7.9187
Milk Grocery Frozen
Min. :-0.7779 Min. :-0.8364 Min. :-0.62763
1st Qu.:-0.5776 1st Qu.:-0.6101 1st Qu.:-0.47988
Median :-0.2939 Median :-0.3363 Median :-0.31844
Mean : 0.0000 Mean : 0.0000 Mean : 0.00000
3rd Qu.: 0.1889 3rd Qu.: 0.2846 3rd Qu.: 0.09935
Max. : 9.1732 Max. : 8.9264 Max. :11.90545
Detergents_Paper Delicassen
Min. :-0.6037 Min. :-0.5396
1st Qu.:-0.5505 1st Qu.:-0.3960
Median :-0.4331 Median :-0.1984
Mean : 0.0000 Mean : 0.0000
3rd Qu.: 0.2182 3rd Qu.: 0.1047
Max. : 7.9586 Max. :16.4597

CORRELATION MATRIX
Channel Region Fresh Milk Grocery Frozen
Detergents
_Paper
Channel 1.00 0.06 -0.17 0.46 0.61 -0.20 0.64
Region 0.06 1.00 0.06 0.03 0.01 -0.02 0.00
Fresh -0.17 0.06 1.00 0.10 -0.01 0.35 -0.10
Milk 0.46 0.03 0.10 1.00 0.73 0.12 0.66
Grocery 0.61 0.01 -0.01 0.73 1.00 -0.04 0.92
Frozen -0.20 -0.02 0.35 0.12 -0.04 1.00 -0.13
Detergents
_Paper 0.64 0.00 -0.10 0.66 0.92 -0.13 1.00

DETERMINING NUMBER OF CLUSTERS
> Using various methods, we could determine that the number of clusters
recommended for this data set were 2.

PLOTTING CLUSTERS
Cluster profiles
- Cluster 1: 135 data points
- Cluster 2: 305 data points

CLUSTER MEANS (MEDIODS)
Channel
Region
Fresh
Milk
Grocery
Frozen
Detergents
_Paper
Delicassen
1 1.43 0.11 -0.28 0.76 0.95 -0.28 0.99 0.21
2 -0.63 -0.05 0.12 -0.34 -0.42 0.12 -0.44 -0.09

CLUSTER SUMMARY
• > fit2$size
• [1] 135 305
• > fit2$betweenss
• [1] 918.5233
• > fit2$withinss
• [1] 1277.692 1315.784

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Analytics Assignment - Cluster analysis

1. I I I T B – B US I N E S S A N A L Y T I C S CLUSTER ANALYSIS ASSIGNMENT

2. DATA DESCRIPTION 1. FRESH(Continuous) 2. MILK (Continuous) 3. GROCERY(Continuous) 4. FROZEN(Continuous) 5. DETERGENTS_PAPER(Continuous) 6. DELICATESSEN(Continuous) 7. CHANNEL(Nominal) 8. REGION(Nominal)

3. STEPS Uni-variate Analysis Scaling Cluster Identification Cluster Plotting

4. UNI-VARIATE ANALYSIS Channel Region Fresh Milk Min. :1.000 Min. :1.000 Min. : 3 Min. : 55 1st Qu.:1.000 1st Qu.:2.000 1st Qu.: 3128 1st Qu.: 1533 Median :1.000 Median :3.000 Median : 8504 Median : 3627 Mean :1.323 Mean :2.543 Mean : 12000 Mean : 5796 3rd Qu.:2.000 3rd Qu.:3.000 3rd Qu.: 16934 3rd Qu.: 7190 Max. :2.000 Max. :3.000 Max. :112151 Max. :73498 Grocery Frozen Detergents_Paper Min. : 3 Min. : 25.0 Min. : 3.0 1st Qu.: 2153 1st Qu.: 742.2 1st Qu.: 256.8 Median : 4756 Median : 1526.0 Median : 816.5 Mean : 7951 Mean : 3071.9 Mean : 2881.5 3rd Qu.:10656 3rd Qu.: 3554.2 3rd Qu.: 3922.0 Max. :92780 Max. :60869.0 Max. :40827.0 Delicassen Min. : 3.0 1st Qu.: 408.2 Median : 965.5 Mean : 1524.9 3rd Qu.: 1820.2 Max. :47943.0

5. UNI-VARIATE ANALYSIS (SCALE) Channel Region Fresh Min. :-0.6895 Min. :-1.9931 Min. :-0.9486 1st Qu.:-0.6895 1st Qu.:-0.7015 1st Qu.:-0.7015 Median :-0.6895 Median : 0.5900 Median :-0.2764 Mean : 0.0000 Mean : 0.0000 Mean : 0.0000 3rd Qu.: 1.4470 3rd Qu.: 0.5900 3rd Qu.: 0.3901 Max. : 1.4470 Max. : 0.5900 Max. : 7.9187 Milk Grocery Frozen Min. :-0.7779 Min. :-0.8364 Min. :-0.62763 1st Qu.:-0.5776 1st Qu.:-0.6101 1st Qu.:-0.47988 Median :-0.2939 Median :-0.3363 Median :-0.31844 Mean : 0.0000 Mean : 0.0000 Mean : 0.00000 3rd Qu.: 0.1889 3rd Qu.: 0.2846 3rd Qu.: 0.09935 Max. : 9.1732 Max. : 8.9264 Max. :11.90545 Detergents_Paper Delicassen Min. :-0.6037 Min. :-0.5396 1st Qu.:-0.5505 1st Qu.:-0.3960 Median :-0.4331 Median :-0.1984 Mean : 0.0000 Mean : 0.0000 3rd Qu.: 0.2182 3rd Qu.: 0.1047 Max. : 7.9586 Max. :16.4597

6. CORRELATION MATRIX Channel Region Fresh Milk Grocery Frozen Detergents _Paper Channel 1.00 0.06 -0.17 0.46 0.61 -0.20 0.64 Region 0.06 1.00 0.06 0.03 0.01 -0.02 0.00 Fresh -0.17 0.06 1.00 0.10 -0.01 0.35 -0.10 Milk 0.46 0.03 0.10 1.00 0.73 0.12 0.66 Grocery 0.61 0.01 -0.01 0.73 1.00 -0.04 0.92 Frozen -0.20 -0.02 0.35 0.12 -0.04 1.00 -0.13 Detergents _Paper 0.64 0.00 -0.10 0.66 0.92 -0.13 1.00

7. DETERMINING NUMBER OF CLUSTERS > Using various methods, we could determine that the number of clusters recommended for this data set were 2.

8. PLOTTING CLUSTERS Cluster profiles - Cluster 1: 135 data points - Cluster 2: 305 data points

9. CLUSTER MEANS (MEDIODS) Channel Region Fresh Milk Grocery Frozen Detergents _Paper Delicassen 1 1.43 0.11 -0.28 0.76 0.95 -0.28 0.99 0.21 2 -0.63 -0.05 0.12 -0.34 -0.42 0.12 -0.44 -0.09

10. CLUSTER SUMMARY • > fit2$size • [1] 135 305 • > fit2$betweenss • [1] 918.5233 • > fit2$withinss • [1] 1277.692 1315.784

Analytics Assignment - Cluster analysis

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