Nothing
Code
as.data.frame(ard_ttest(cards::ADSL, by = ARM, variable = AGE, var.equal = TRUE))
Output
group1 variable context stat_name stat_label stat fmt_fn warning
1 ARM AGE ttest estimate Mean Difference NULL NULL NULL
2 ARM AGE ttest estimate1 Group 1 Mean NULL NULL NULL
3 ARM AGE ttest estimate2 Group 2 Mean NULL NULL NULL
4 ARM AGE ttest statistic t Statistic NULL NULL NULL
5 ARM AGE ttest p.value p-value NULL NULL NULL
6 ARM AGE ttest parameter Degrees of Freedom NULL NULL NULL
7 ARM AGE ttest conf.low CI Lower Bound NULL NULL NULL
8 ARM AGE ttest conf.high CI Upper Bound NULL NULL NULL
9 ARM AGE ttest method method NULL NULL NULL
10 ARM AGE ttest alternative alternative NULL NULL NULL
11 ARM AGE ttest mu H0 Mean NULL NULL NULL
12 ARM AGE ttest paired Paired t-test FALSE NULL NULL
13 ARM AGE ttest var.equal Equal Variances TRUE NULL NULL
14 ARM AGE ttest conf.level CI Confidence Level NULL NULL NULL
error
1 grouping factor must have exactly 2 levels
2 grouping factor must have exactly 2 levels
3 grouping factor must have exactly 2 levels
4 grouping factor must have exactly 2 levels
5 grouping factor must have exactly 2 levels
6 grouping factor must have exactly 2 levels
7 grouping factor must have exactly 2 levels
8 grouping factor must have exactly 2 levels
9 grouping factor must have exactly 2 levels
10 grouping factor must have exactly 2 levels
11 grouping factor must have exactly 2 levels
12 grouping factor must have exactly 2 levels
13 grouping factor must have exactly 2 levels
14 grouping factor must have exactly 2 levels
Code
as.data.frame(ard_paired_ttest(dplyr::mutate(ADSL_paired, ARM = ifelse(dplyr::row_number() ==
1L, "3rd ARM", ARM)), by = ARM, variable = AGE, id = USUBJID, var.equal = TRUE))
Output
group1 variable context stat_name stat_label stat fmt_fn warning
1 ARM AGE ttest estimate Mean Difference NULL NULL NULL
2 ARM AGE ttest estimate1 Group 1 Mean NULL NULL NULL
3 ARM AGE ttest estimate2 Group 2 Mean NULL NULL NULL
4 ARM AGE ttest statistic t Statistic NULL NULL NULL
5 ARM AGE ttest p.value p-value NULL NULL NULL
6 ARM AGE ttest parameter Degrees of Freedom NULL NULL NULL
7 ARM AGE ttest conf.low CI Lower Bound NULL NULL NULL
8 ARM AGE ttest conf.high CI Upper Bound NULL NULL NULL
9 ARM AGE ttest method method NULL NULL NULL
10 ARM AGE ttest alternative alternative NULL NULL NULL
11 ARM AGE ttest mu H0 Mean NULL NULL NULL
12 ARM AGE ttest paired Paired t-test TRUE NULL NULL
13 ARM AGE ttest var.equal Equal Variances TRUE NULL NULL
14 ARM AGE ttest conf.level CI Confidence Level NULL NULL NULL
error
1 The `by` argument must have two and only two levels.
2 The `by` argument must have two and only two levels.
3 The `by` argument must have two and only two levels.
4 The `by` argument must have two and only two levels.
5 The `by` argument must have two and only two levels.
6 The `by` argument must have two and only two levels.
7 The `by` argument must have two and only two levels.
8 The `by` argument must have two and only two levels.
9 The `by` argument must have two and only two levels.
10 The `by` argument must have two and only two levels.
11 The `by` argument must have two and only two levels.
12 The `by` argument must have two and only two levels.
13 The `by` argument must have two and only two levels.
14 The `by` argument must have two and only two levels.
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