Description Usage Arguments Value Examples
Using rules prescribed by GOST 25543 (Table 2) determine the form of fossil fuels that could be classified as brown or hard coal, or anthracite.
1 |
r |
reflectance of vitrinite, [%], measured in accordance with
ISO 7404-5.
Type: [ |
qsaf |
gross calorific value, [MJ/kg] or [J/g], measured in
accordance with ISO 1928
and recalculated on moisture ash-free basis. Type: [ |
vdaf |
volatile matter yield, [%], measured in accordance with
ISO 562 or ISO 5071-1 and recalculated
on dry ash-free basis. Type: [ |
Identifier of fossil fuel form:
brown
hard
anthracite
Type: [character
].
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | fuel()
# [1] "hard"
fuel(c(0.3, 1.3), c(20, NA), c(8, NA))
# [1] "brown" "hard"
# building test:
with(
read.csv(text =
"R0, Qsdaf,Vdaf,Form,Comment
0.2, , ,brown,Unambiguously brown coal
1.3, , ,hard,Unambiguously hard coal
2.8, , ,anthracite,Unambiguously anthracite
0.3, 20., 8.,brown,Unambiguously brown coal with redundant parameters
1.9, 24,28.3,hard,Unambiguously hard coal with redundant parameters
3.0, 28, 6,anthracite,Unambiguously anthracite with redundant parameters
0.5, 20, ,brown,Brown coal in ambiguous brown-hard zone
0.5, 24, ,hard,Hard coal in ambiguous brown-hard zone
0.5, 28, ,hard,Hard coal in ambiguous brown-hard zone
2.3, , 8,hard,Hard coal in ambiguous hard-anthracite zone
2.3, , 28,hard,Hard coal in ambiguous hard-anthracite zone
2.3, , 6,anthracite,Anthracite coal in ambiguous hard-anthracite zone"
),
stopifnot(all(fuel(R0, Qsdaf, Vdaf) == Form))
)
|
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.