fold_to_log2fold: Convert normal signed fold change to log2 fold change

In jmw86069/jamma: MA-plots for omics data

Convert normal signed fold change to log2 fold change

Description

Convert normal signed fold change to log2 fold change

Usage

fold_to_log2fold(x, ...)

Arguments

x	numeric vector

Details

This function takes fold change values as input, and returns log2 fold change values.

This function recognizes two forms of input:

• ratio, which includes values between 0 and 1, but no negative values;

• fold change, as from log2fold_to_fold() which includes no values between 0 and 1, but may include negative values.

For example, for ratio input:

• ratio = 4 becomes ⁠log2 fold change = 2⁠.

• ratio = 0.25 becomes ⁠log2 fold change = -2⁠.

For example, for fold change input:

• ⁠fold change = 4⁠ becomes ⁠log2 fold change = 2⁠.

• ⁠fold change = -4⁠ becomes ⁠log2 fold change = -2⁠.

Value

numeric vector representing log2 fold change values.

See Also

Other jam utility functions: blockArrowMargin(), find_colname(), get_se_assaydata(), gradient_rect(), handle_highlightPoints(), log2fold_to_fold(), logAxis(), outer_legend(), points2polygonHull(), update_function_params(), update_list_elements()

Examples

x <- c(-3, -2, -1, 0, 1, 2, 3);
fc <- log2fold_to_fold(x);
fc;

fold_to_log2fold(fc);

jmw86069/jamma documentation built on July 6, 2023, 1:09 p.m.