rowTtest | R Documentation |
performs a two-sided Welch's t-test (unequal variances, equal or unequal sample sizes) on each row of a matrix X with the indices inds.1 vs indices idx2 as group assignments.
rowTtest(X, idx1, idx2 = -idx1, na.rm = FALSE, alternative = "two.sided")
X |
Matrix on which the test is performed for every row |
idx1 |
column indices of group 1 members |
idx2 |
column indices of group 2 members |
na.rm |
Should NAs be removed (logical) |
alternative |
Testing alternative. Must be one of "two.sided" (default),"less","greater" or "all". in case of "all" a data frome with corresping alternative variables is returned. Otherwise the result is a vector. |
vector (or data.frame if alternative=="all") of p-values resulting from the Welch's t-test
Requires matrixStats
package
Fabian Mueller
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