psort | R Documentation |

Similar to `base::sort`

but just for character vector and partially using parallelism.
It is currently experimental and might change in the future. Use with caution.

```
psort(x, decreasing=FALSE, na.last=NA,
nThread=getOption("kit.nThread"),c.locale=TRUE)
```

`x` |
A vector of type character. If other, it will default to |

`na.last` |
For controlling the treatment of |

`decreasing` |
A boolean indicating where to sort the data in decreasing way. Default is |

`nThread` |
Number of thread to use. Default value is |

`c.locale` |
A boolean, whether to use C Locale or R session locale. Default TRUE. |

Returns the input `x`

in sorted order similar to `base::sort`

but usually faster. If `c.locale=FALSE`

, `psort`

will return the same output as `base::sort`

with `method="quick"`

, i.e. using R session locale. If `c.locale=TRUE`

, `psort`

will return the same output as `base::sort`

with `method="radix"`

, i.e. using C locale. See example below.

Morgan Jacob

```
x = c("b","A","B","a","\xe4")
Encoding(x) = "latin1"
identical(psort(x, c.locale=FALSE), sort(x))
identical(psort(x, c.locale=TRUE), sort(x, method="radix"))
# Benchmarks
# ----------
# strings = as.character(as.hexmode(1:1000))
# x = sample(strings, 1e8, replace=TRUE)
# system.time({kit::psort(x, na.last = TRUE, nThread = 1L)})
# user system elapsed
# 2.833 0.434 3.277
# system.time({sort(x,method="radix",na.last = TRUE)})
# user system elapsed
# 5.597 0.559 6.176
# system.time({x[order(x,method="radix",na.last = TRUE)]})
# user system elapsed
# 5.561 0.563 6.143
```

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