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

<%@string fcnname="allocMatrix"%>
<% fcnname <- "<%@string name="fcnname"%>" %>
<%@meta title="${fcnname}() benchmarks"%>
<%@meta author="Henrik Bengtsson"%>
<%@meta date="2014-11-09"%>

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


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

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

## Alternative methods

* matrix()
* matrix() special trick for NA

where
```r
<%=withCapture({
allocMatrix_R <- function(nrow, ncol, value = NA) {
  if (is.na(value) && !is.nan(value)) {
    matrix(data = value[c()], nrow = nrow, ncol = ncol)
  } else {
    matrix(data = value, nrow = nrow, ncol = ncol)
  }
} # allocMatrix_R()
})%>
```


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

## Data type "<%=mode%>"
### Data
```r
<%=withCapture({
<%@include file="R/random-matrices.R"%>
data <- rmatrices(mode = mode)
values <- list(zero = 0, one = 1, "NA" = NA_real_)
if (mode != "double")
  values <- lapply(values, FUN = function(x) { storage.mode(x) <- mode; x })
})%>
```

### Results

<% for (ii in seq_along(data)) { %>
<%
dataLabel <- names(data)[ii]
x <- data[[dataLabel]]
gc()
%>
### <%=dataLabel%> matrix

<% for (value in values) { %>

<%
valueLabel <- as.character(value)
mprintf("%s: %s, value=%s\n", mode, dataLabel, valueLabel)
%>

```r
<%=withCapture({
dim <- dim(data[[.dataLabel.]])
nrow <- dim[1L]
ncol <- dim[2L]
str(value)
})%>
```
<% gc() %>

```r
<%=withCapture({
stats <- microbenchmark(
 "allocMatrix"         = allocMatrix(nrow = nrow, ncol = ncol, value = value),
 "matrix"              = matrix(data = value, nrow = nrow, ncol = ncol),
 "allocMatrix_R"       = allocMatrix_R(nrow = nrow, ncol = ncol, value = value),
  unit = "ms"
)
})%>
```

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

<% } # for (value in values) %>

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

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

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


<%---------------------------------------------------------------------------
HISTORY:
2014-11-01
o Created.
---------------------------------------------------------------------------%>