addProperty

addProperty,data.frame,character,character-method

<code>data.frame</code> to add the column to

name

type

Initial value of the new column (<code>NA</code> if not given)

value


Adds a new column of a defined type to a <code>data.frame</code> and initializes it to a value.
The advantage of doing this over adding it with <code>$</code> or <code>[,""]</code> is that the case
<code>nrow(o) == 0</code> is adequately handled and doesn't raise an error.


Workflow to process tandem MS files and build MassBank records.
Functions include automated extraction of tandem MS spectra, formula
assignment to tandem MS fragments, recalibration of tandem MS spectra with
assigned fragments, spectrum cleanup, automated retrieval of compound
information from Internet databases, and export to MassBank records.

RMassBank at Eawag

RMassBank

Workflow to process tandem MS files and build MassBank records

addProperty function

<ul>
<li> <code>o = data.frame,name = character,type = character</code>: Add a new column to a data.frame
</li>
</ul>

Methods (by class)

Adds a new column of a defined type to a <code>data.frame</code> and initializes it to a value.
The advantage of doing this over adding it with <code>$</code> or <code>[,""]</code> is that the case
<code>nrow(o) == 0</code> is adequately handled and doesn't raise an error.

addProperty: Add and initialize dataframe column

Description

Usage

Arguments

Value

Methods (by class)