dot-dropEmptyCols: Drop empty columns from data.frame
In pmbrophy/mzDataTable: Import and convert raw mass spectrometry data formats

Description Usage Arguments Value Examples

Check for any columns in a data frame that contain only na and remove

1	.dropEmptyCols(df)

`df`	a data frame

returns a data.frame

## Not run: 
df <- data.frame(c1 = c(1:10),
                 c2 = rnorm(n = 10, mean = 1, sd = 1),
                 c3 = rep("a", 10),
                 c4 = rep(NA, 10),
                 c5 = rep(NaN, 10),
                 C6 = c(1:10))

ncol(df)
df_out <- .dropEmptyCols(df = df)
ncol(df_out)

## End(Not run)