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This is the well-known well-log dataset used in many changepoint papers obtained from Alan Turing Institute GitHub repository and licensed under the MIT license. Outliers with value less or equal to 1e5 are removed.

Usage

well_log

Format

A Time-Series of length 3989.

Source

<https://github.com/alan-turing-institute/TCPD>

Examples

if (!requireNamespace("ggplot2", quietly = TRUE)) utils::install.packages(
  "ggplot2", repos = "https://cloud.r-project.org", quiet = TRUE
)

result <- fastcpd.mean(well_log, trim = 0.003)
summary(result)
#> 
#> Call:
#> fastcpd.mean(data = well_log, trim = 0.003)
#> 
#> Change points:
#> 12 566 704 776 1021 1057 1198 1347 1406 1502 1665 1842 2023 2202 2384 2445 2507 2567 2749 2926 3094 3107 3509 3622 3709 3820 3976 
#> 
#> Cost values:
#> 330.9634 5126.496 1265.516 673.0034 2245.203 336.8917 1308.287 1408.312 568.1442 903.5709 1660.774 1637.202 1676.836 1642.546 1656.059 564.4224 570.6925 542.4309 1706.417 1647.568 1532.549 135.4606 3715.106 1030.607 819.7893 1021.112 1469.339 123.8282 
plot(result)