A shipyard of recreational boats manufacturing, intended to optimize and control the mechanical properties hull yacht models. This has made a study in which the modulus of elasticity tensile strength of the epoxy resin (polymer) used, after applying different curing pressures measured: 0.1 y 10 MPa. 60 subsamples composed of three measurements taken on the same day are taken.
Format
A data frame with 180 observations on the following 3 variables:
- presion
Presion level.
- sample
sample id
- measur
Pressures measured: 0.1 y 10 MPa
Examples
data(presion)
attach(presion)
#> The following object is masked _by_ .GlobalEnv:
#>
#> presion
#> The following object is masked from orangejuice:
#>
#> sample
#> The following object is masked from package:qcr:
#>
#> presion
summary(presion)
#> presion sample measur
#> Min. :5.872e+08 Min. : 1.00 Min. : 0.100
#> 1st Qu.:9.871e+08 1st Qu.:15.75 1st Qu.: 0.100
#> Median :1.115e+09 Median :30.50 Median : 0.100
#> Mean :1.110e+09 Mean :30.50 Mean : 4.885
#> 3rd Qu.:1.257e+09 3rd Qu.:45.25 3rd Qu.:10.000
#> Max. :1.390e+09 Max. :60.00 Max. :10.000
plot(presion$presion, type="b")
detach(presion)