---
name: "ngramtransfer"
section: "1"
platform: "linux"
package: "libngram-tools"
version: "1.3.2-3"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/ngramtransfer"
---

# ngramtransfer(1)

ngramtransfer.

## NAME

ngramtransfer - ngramtransfer.

## DESCRIPTION

ngramtransfer.

-

  ## SYNOPSIS

ngramtransfer \[--options\] **--ofile**=*out*.fst in1.fst in2.fst \[in3.fst ...\]

## OPTIONS

**--backoff\_label**: type = int64, default = 0

-

  Backoff label

**--complete**: type = bool, default = false

-

  Complete partial models

**--context\_pattern1**: type = string, default = ""

-

  Context pattern for first model

**--context\_pattern2**: type = string, default = ""

-

  Context pattern for second model

**--contexts**: type = string, default = ""

-

  Context patterns files (all FSTs)

**--index**: type = int32, default = **-1**

-

  Specifies one FST as the destination (source)

**--method**: type = string, default = "count\_transfer"

-

  One of "count\_transfer", "histogram\_transfer"

**--normalize**: type = bool, default = false

-

  Recompute backoff weights after transfer

**--ofile**: type = string, default = ""

-

  Output file (prefix)

**--transfer\_from**: type = bool, default = false

-

  Transfer from (to) other FSTS to indexed FST

**--help**: type = bool, default = false

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  show usage information

**--helpshort**: type = bool, default = false

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  show brief usage information

**--tmpdir**: type = string, default = "/tmp"

-

  temporary directory

**--v**: type = int32, default = 0

-

  verbosity level

**--fst\_align**: type = bool, default = false

-

  Write FST data aligned where appropriate

**--fst\_default\_cache\_gc**: type = bool, default = true

-

  Enable garbage collection of cache

**--fst\_default\_cache\_gc\_limit**: type = int64, default = 1048576

-

  Cache byte size that triggers garbage collection

**--fst\_read\_mode**: type = string, default = "read"

-

  Default file reading mode for mappable files

**--fst\_verify\_properties**: type = bool, default = false

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  Verify FST properties queried by TestProperties

**--save\_relabel\_ipairs**: type = string, default = ""

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  Save input relabel pairs to file

**--save\_relabel\_opairs**: type = string, default = ""

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  Save output relabel pairs to file

**--end\_symbol**: type = string, default = "\</s\>"

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  Class label for sentence start

**--start\_symbol**: type = string, default = "\<s\>"

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  Class label for sentence start

**--fst\_compat\_symbols**: type = bool, default = true

-

  Require symbol tables to match when appropriate

**--fst\_field\_separator**: type = string, default = "      "

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  Set of characters used as a separator between printed fields

**--fst\_error\_fatal**: type = bool, default = true

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  FST errors are fatal; o.w. return objects flagged as bad: e.g., FSTs: kError property set, FST weights: not a Member()

**--ngram\_error\_fatal**: type = bool, default = true

-

  NGram errors are fatal; o.w. return objects flagged as bad:  e.g., NGramModel::Error() returns true.

**--fst\_weight\_parentheses**: type = string, default = ""

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  Characters enclosing the first weight of a printed composite weight (e.g., pair weight, tuple weight and derived classes) to ensure proper I/O of nested composite weights; must have size 0 (none) or 2 (open and close parenthesis)

**--fst\_weight\_separator**: type = string, default = ","

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  Character separator between printed composite weights; must be a single character