getAxisLabel function

Get axis label for minorLogTicks

getAxisLabel(
  i,
  asValues,
  logAxisType = c("normal", "flip", "pvalue"),
  logBase,
  base_limit = 2,
  offset = 0,
  symmetricZero = (offset > 0),
  ...
)

Arguments

• i: numeric axis value

• asValues: logical indicating whether the value should be evaluated.

• logAxisType: character string with the type of axis values:

  • "normal": axis values as-is.
  • "flip": inverted axis values, for example where negative values should be displayed as negative log-transformed values.
  • "pvalue": for values transformed as -log10(pvalue)

• logBase: numeric logarithmic base

• base_limit: numeric value indicating the minimum value that should be written as an exponential.

• offset: numeric value of offset used for log transformation.

• symmetricZero: logical indicating whether negative values should be displayed as negative log-transformed values.

• ...: additional arguments are ignored.

Returns

character or expression axis label as appropriate.

Details

This function is intended to be called internally by jamba::minorLogTicks().

Examples

x <- log10(c(1, 2, 5, 10, 20, 50, 100, 200, 500))
getAxisLabel(x, asValues=TRUE, logBase=10)

x1exp <- c(1, 2, 3, 4, 5)
plot(1:6, main="exponential values")
for (i in seq_along(x1exp)) {
   text(x=i, y=i + 0.2,
      getAxisLabel(x1exp[i], asValues=FALSE, logBase=10))
}

x1exp <- c(-3:3)
plot(-3:3, main="log2 fold change values")
for (i in seq_along(x1exp)) {
   text(x=i, y=i + 0.3 - 4,
      getAxisLabel(x1exp[i],
         logAxisType="flip",
         asValues=TRUE, logBase=2))
}

x1exp <- c(1, 2, 3, 4, 5)
plot(1:6, main="P-value style")
for (i in seq_along(x1exp)) {
   text(x=i, y=i + 0.2,
      getAxisLabel(x1exp[i],
      logAxisType="pvalue", asValues=FALSE, logBase=10))
}

See Also

Other jam practical functions: breakDensity(), call_fn_ellipsis(), checkLightMode(), check_pkg_installed(), colNum2excelName(), color_dither(), exp2signed(), isFALSEV(), isTRUEV(), jargs(), kable_coloring(), lldf(), log2signed(), middle(), minorLogTicks(), newestFile(), printDebug(), reload_rmarkdown_cache(), renameColumn(), rmInfinite(), rmNA(), rmNAs(), rmNULL(), setPrompt()