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Wireless Indoor Localization

Source: R/wireless.R
wireless.Rd

The wireless data frame has 2000 rows and 8 columns. The first 7 variables report the measurements of the Wi-Fi signal strength received from 7 Wi-Fi routers in an office location in Pittsburgh (USA). The last column indicates the class labels.

Usage

wireless

Format

A data frame containing the following columns:

  • V1 Signal strength from router 1.

  • V2 Signal strength from router 2.

  • V3 Signal strength from router 3.

  • V4 Signal strength from router 4.

  • V5 Signal strength from router 5.

  • V6 Signal strength from router 6.

  • V7 Signal strength from router 7.

  • V8 Group memberships, from 1 to 4.

Source

Bhatt, R. (2017). Wireless Indoor Localization. UCI Machine Learning Repository.
https://doi.org/10.24432/C51880.

Details

The Wi-Fi signal strength is measured in dBm, decibel milliwatts, which is expressed as a negative value ranging from -100 to 0. The labels correspond to 4 different rooms. In total, we have 4 groups with 500 observations each.

References

Rohra, J.G., Perumal, B., Narayanan, S.J., Thakur, P. and Bhatt, R.B. (2017). "User Localization in an Indoor Environment Using Fuzzy Hybrid of Particle Swarm Optimization & Gravitational Search Algorithm with Neural Networks". In: Deep, K., et al. Proceedings of Sixth International Conference on Soft Computing for Problem Solving. Advances in Intelligent Systems and Computing, vol 546. Springer, Singapore. https://doi.org/10.1007/978-981-10-3322-3_27

Examples

data(wireless)
summary(wireless)
#>        V1               V2               V3               V4        
#>  Min.   :-74.00   Min.   :-74.00   Min.   :-73.00   Min.   :-77.00  
#>  1st Qu.:-61.00   1st Qu.:-58.00   1st Qu.:-58.00   1st Qu.:-63.00  
#>  Median :-55.00   Median :-56.00   Median :-55.00   Median :-56.00  
#>  Mean   :-52.33   Mean   :-55.62   Mean   :-54.96   Mean   :-53.57  
#>  3rd Qu.:-46.00   3rd Qu.:-53.00   3rd Qu.:-51.00   3rd Qu.:-46.00  
#>  Max.   :-10.00   Max.   :-45.00   Max.   :-40.00   Max.   :-11.00  
#>        V5               V6               V7               V8      
#>  Min.   :-89.00   Min.   :-97.00   Min.   :-98.00   Min.   :1.00  
#>  1st Qu.:-69.00   1st Qu.:-86.00   1st Qu.:-87.00   1st Qu.:1.75  
#>  Median :-64.00   Median :-82.00   Median :-83.00   Median :2.50  
#>  Mean   :-62.64   Mean   :-80.98   Mean   :-81.73   Mean   :2.50  
#>  3rd Qu.:-56.00   3rd Qu.:-77.00   3rd Qu.:-78.00   3rd Qu.:3.25  
#>  Max.   :-36.00   Max.   :-61.00   Max.   :-63.00   Max.   :4.00