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ancova_single() now return residual variance #566

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5713a47
`ancova_single()` now return residual variance
munoztd0 Jun 18, 2026
8b64e9c
fix: update snapshots
munoztd0 Jul 6, 2026
018fd6b
Merge branch 'main' into add_variance_output_ancova
munoztd0 Aug 10, 2026
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1 change: 1 addition & 0 deletions NEWS.md
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
## New Features
* rbmi now uses the `lifecycle` package
* Added en-GB spell-check and a corresponding test to the package
* `ancova_single()` now return residual variance.

## Documentation
* Documented the return value (`@return`) of all exported functions and marked
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5 changes: 5 additions & 0 deletions R/ancova.R
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Expand Up @@ -226,6 +226,11 @@ ancova_single <- function(
lsm1 <- do.call(lsmeans, args)

x <- list(
var = list(
est = summary(mod)$sigma^2,
se = summary(mod)$sigma^2 / sqrt(df.residual(mod) / 2),
df = df.residual(mod)
),
trt = list(
est = coef(mod)[[group]],
se = sqrt(vcov(mod)[group, group]),
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3 changes: 3 additions & 0 deletions tests/testthat/_snaps/pool.md
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Expand Up @@ -13,12 +13,15 @@
=========================================================
parameter est se lci uci pval
---------------------------------------------------------
var_visit_1 0.153 0.052 0.234 0.131 < 0.000001
trt_visit_1 0.078 0.024 0.058 0.12 0.07057
lsm_ref_visit_1 0.031 0.005 0.031 0.034 < 0.000001
lsm_alt_visit_1 0.071 0.025 0.081 0.101 < 0.000001
var_visit_2 0.333 0.076 0.329 0.406 < 0.000001
trt_visit_2 0.104 0.025 0.14 0.088 0.00057
lsm_ref_visit_2 0.064 0.016 0.052 0.088 < 0.000001
lsm_alt_visit_2 0.068 0.009 0.073 0.068 < 0.000001
var_visit_3 0.668 0.21 0.515 1.006 < 0.000001
trt_visit_3 0.107 0.023 0.094 0.136 0.00093
lsm_ref_visit_3 0.096 0.021 0.097 0.115 < 0.000001
lsm_alt_visit_3 0.087 0.021 0.074 0.117 < 0.000001
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11 changes: 11 additions & 0 deletions tests/testthat/_snaps/print.md
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Expand Up @@ -226,12 +226,15 @@
Analysis Function: ancova
Delta Applied: FALSE
Analysis Estimates:
var_visit_1
trt_visit_1
lsm_ref_visit_1
lsm_alt_visit_1
var_visit_2
trt_visit_2
lsm_ref_visit_2
lsm_alt_visit_2
var_visit_3
trt_visit_3
lsm_ref_visit_3
lsm_alt_visit_3
Expand Down Expand Up @@ -297,9 +300,11 @@
Analysis Function: rbmi::ancova
Delta Applied: TRUE
Analysis Estimates:
var_visit_1
trt_visit_1
lsm_ref_visit_1
lsm_alt_visit_1
var_visit_3
trt_visit_3
lsm_ref_visit_3
lsm_alt_visit_3
Expand Down Expand Up @@ -357,12 +362,15 @@
Analysis Function: ancova
Delta Applied: FALSE
Analysis Estimates:
var_visit_1
trt_visit_1
lsm_ref_visit_1
lsm_alt_visit_1
var_visit_2
trt_visit_2
lsm_ref_visit_2
lsm_alt_visit_2
var_visit_3
trt_visit_3
lsm_ref_visit_3
lsm_alt_visit_3
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Analysis Function: ancova
Delta Applied: FALSE
Analysis Estimates:
var_visit_1
trt_visit_1
lsm_ref_visit_1
lsm_alt_visit_1
var_visit_2
trt_visit_2
lsm_ref_visit_2
lsm_alt_visit_2
var_visit_3
trt_visit_3
lsm_ref_visit_3
lsm_alt_visit_3
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2 changes: 2 additions & 0 deletions tests/testthat/test-ancova.R
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Expand Up @@ -192,9 +192,11 @@ test_that("ancova", {
expect_equal(
names(result_actual),
c(
"var_visit 1",
"trt_visit 1",
"lsm_ref_visit 1",
"lsm_alt_visit 1",
"var_visit 2",
"trt_visit 2",
"lsm_ref_visit 2",
"lsm_alt_visit 2"
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