<%@include file="includes/setup.md.rsp"%>

<%@string fcnname="varDiff"%>
<% fcnname <- "<%@string name="fcnname"%>" %>
<%@meta title="${fcnname}() benchmarks"%>
<%@meta author="Henrik Bengtsson"%>
<%@meta date="2014-11-10"%>

<%@include file="${header}"%>


# <%@meta name="title"%>

This report benchmark the performance of <%=fcnname%>() against alternative methods.

## Alternative methods

* N/A

<% for (mode in c("integer", "double")) { %>

## Data type "<%=mode%>"
### Data
```r
<%=withCapture({
<%@include file="R/random-vectors.R"%>
data <- rvectors(mode = mode)
data <- data[1:4]
})%>
```

### Results

<% for (ii in seq_along(data)) { %>
<%
dataLabel <- names(data)[ii]
mprintf("%s: %s\n", mode, dataLabel)
x <- data[[dataLabel]]
gc()
%>
### <%=dataLabel%> vector

#### All elements
```r
<%=withCapture({
x <- data[[.dataLabel.]]

stats <- microbenchmark(
 "varDiff"         = varDiff(x),
 "var"             = var(x),
 "diff"            = diff(x),
  unit = "ms"
)
})%>
```

<% benchmarkResults(stats, tags=c(mode, dataLabel)) %>

<% } # for (ii ...) %>

<% } # for (mode ...) %>

<%@include file="${footer}"%>


<%---------------------------------------------------------------------------
HISTORY:
2014-11-10
o Created.
---------------------------------------------------------------------------%>
