These wrapper functions compute the standard error (SE) or the confidence
interval (CI) of the values in <code>x</code>. If <code>na.rm</code> is <code>TRUE</code>,
missing values are removed before the computation proceeds.

Small toolbox for data analyses in environmental chemistry and
ecotoxicology. Provides, for example, calibration() to calculate calibration
curves and corresponding limits of detection (LODs) and  limits of
quantification (LOQs) according to German DIN 32645 (2008). texture() makes
it easy to estimate soil particle size distributions from hydrometer
measurements (ASTM D422-63, 2007).

Zacharias Steinmetz

envalysis

Miscellaneous Functions for Environmental Analyses

Julius Albert

Kilian Kenngott

se function

<dl><dt>x</dt>
<dd>a numeric vector or an R object which is coercible to one by
<code>as.vector(x, "numeric")</code>.</dd>
<dt>na.rm</dt>
<dd>logical. Should missing values be removed?</dd>
<dt>level</dt>
<dd>the confidence level required.</dd></dl>

Arguments

Author

Standard error and confidence interval — se

<dl>

<dt>x</dt>
<dd>a numeric vector or an R object which is coercible to one by
<code>as.vector(x, "numeric")</code>.</dd>


<dt>na.rm</dt>
<dd>logical. Should missing values be removed?</dd>


<dt>level</dt>
<dd>the confidence level required.</dd>

</dl>

se: Standard error and confidence interval

Description

Usage

Arguments

Author

See Also

Examples