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adds a few more unit conversion options #67

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Merged
jasmineirx merged 3 commits into from
Jun 4, 2025
Merged

adds a few more unit conversion options #67

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798e4d6
adds a few more unit conversion options
jasmineirx Jun 3, 2025
2ab102d
also add mmol_l
jasmineirx Jun 3, 2025
0dcfc42
fix forgotten slash
jasmineirx Jun 4, 2025
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12 changes: 10 additions & 2 deletions R/convert_conc_unit.R
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Original file line number Diff line number Diff line change
Expand Up @@ -31,14 +31,22 @@ convert_conc_unit <- function(value, unit_in, unit_out, mol_weight = NULL) {
`g/l` = 1000000,
mg_dl = 10000,
`mg/dl` = 10000,
mg_l = 1000,
`mg/l` = 1000,
pg_ml = 1e-3,
`pg/ml` = 1e-3,
`micromol/l` = mol_weight,
micromol_l = mol_weight,
micromol = mol_weight,
mmol = mol_weight,
mmol = mol_weight * 1000,
mmol_l = mol_weight * 1000,
`mmol/l` = mol_weight * 1000,
`mumol/l` = mol_weight,
`umol/l` = mol_weight,
mumol_l = mol_weight,
umol_l = mol_weight
umol_l = mol_weight,
pmol_l = mol_weight * 1e-6,
`pmol/l` = mol_weight * 1e-6
)

unit_out <- match.arg(unit_out, names(conv))
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4 changes: 4 additions & 0 deletions tests/testthat/test_convert_conc_unit.R
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Expand Up @@ -5,6 +5,8 @@ test_that("convert_conc_unit can convert g/dl, g/l, mg/dl", {
expect_equal(convert_conc_unit(1, "mg_dl", "g_dl")$value, .001)
expect_equal(convert_conc_unit(1, "mg_dl", "g_l")$value, 0.01)
expect_equal(convert_conc_unit(1, "g_l", "mg_dl")$value, 100)
expect_equal(convert_conc_unit(1, "g_l", "mg_l")$value, 1000)
expect_equal(convert_conc_unit(1, "mg_l", "pg_ml")$value, 1e6)
})

test_that("molecular weight required when converting molar units", {
Expand All @@ -17,6 +19,8 @@ test_that("molecular weight required when converting molar units", {

test_that("molar unit conversion works", {
expect_equal(convert_conc_unit(1, "mg_dl", "micromol_l", 0.5)$value, 20000)
expect_equal(convert_conc_unit(200, "pg_ml", "pmol_l", 50)$value, 4000)
expect_equal(convert_conc_unit(1, "mmol_l", "pmol_l", 17)$value, 1e9)
})

test_that("vectorized input works", {
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