calculate_ratios

This function calculates the ratios and resulting counting
statistics error from the raw ion counts. It can be applied to data from both
LANS_summary and LANS_maps loading but can be slow if LANS_maps is combined
from many analyses. It can also be applied to ion_sums generate by calculate_sums
to calculate elemental ratios (careful, ionization efficiencies skew their scaling!)

R interface for working with nanometer scale secondary ion mass
spectrometry (NanoSIMS) data exported from Look at NanoSIMS.

Sebastian Kopf

lans2r

Work with Look at NanoSIMS Data in R

calculate_ratios function

<dl><dt>data</dt>
<dd>a data frame with raw ion counts retrieved from <code>load_LANS_summary</code></dd>
<dt>...</dt>
<dd>the ratios to calculate, each entry is one ratio with major isotope first, then
minor isotope, e.g. c(<code>13C</code>, <code>12C</code>), c(<code>15N12C</code>, <code>14C12C</code>), ...</dd>
<dt>name_fun</dt>
<dd>the naming function, receives ... from the top level, default concatenates column names with '/'</dd>
<dt>quiet</dt>
<dd>whether the function should output information messages or be quiet (default is to output)</dd></dl>

Arguments

Calculate isotope ratios — calculate_ratios

<dl>

<dt>data</dt>
<dd>a data frame with raw ion counts retrieved from <code>load_LANS_summary</code></dd>


<dt>...</dt>
<dd>the ratios to calculate, each entry is one ratio with major isotope first, then
minor isotope, e.g. c(<code>13C</code>, <code>12C</code>), c(<code>15N12C</code>, <code>14C12C</code>), ...</dd>


<dt>name_fun</dt>
<dd>the naming function, receives ... from the top level, default concatenates column names with '/'</dd>


<dt>quiet</dt>
<dd>whether the function should output information messages or be quiet (default is to output)</dd>

</dl>

calculate_ratios: Calculate isotope ratios

Description

Usage

Value

Arguments

See Also