header: Return header block
In ChemmineR: Cheminformatics Toolkit for R

Description Usage Arguments Details Value Author(s) References See Also Examples

Returns header block(s) from an object of class SDF or SDFset.

header(x)

`x`	object of class `SDF` or `SDFset`

...

named character vector if SDF is provided or list of named character vectors if SDFset is provided

Thomas Girke

...

atomblock, atomcount, bondblock, datablock, cid, sdfid

## SDF/SDFset instances
data(sdfsample)
sdfset <- sdfsample
sdf <- sdfset[[1]]

## Extract header block
header(sdf)
header(sdfset[1:4])

## Replacement methods
sdfset[[1]][[1]][1] <- "test"
sdfset[[1]]
header(sdfset)[1] <- header(sdfset[2])  
view(sdfset[1:2])