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> 基底 **ないし** パターンの数ｍは、5.3.3項で説明した方法を使ってデータごとに求めるべきパラメータです

I am unable to understand the use of "ないし" phrase in the head of the above
sentence after the "基底". This phrase is a form of the adjective "ない", meaning
no/is not, which is mainly used when the speaker wants to continue after the
negation. So why is this being used in the head of the sentence ?

If necessary, this sentence is speaking about a machine learning algorithm and
its tuning.

Please help.
CC BY-SA 4.0
2017-04-13T09:20:00.603
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2020-12-28T04:49:17.483
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meaning phrases
”ないし”-Unable to understand the use of this phrase here
I think it's the conjunction
[乃至{ないし}](https://kotobank.jp/word/%E4%B9%83%E8%87%B3-587098), meaning "or"
here, and "from ... to" in other contexts.

> 基底 **ないし** パターンの数ｍは…
>
> The (amount?) of bases **or** patterns, `m`, ...
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2017-04-13T09:46:49.853
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I think you are studying something about DCT(discrete cosine transform).  
「基底ないしパターンの数ｍ」 means "m number of bases (plural form of basis) or patterns",
and the meaning of 「ないし」 is "or" that is described in siikamiika's answer.
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2017-04-13T10:33:51.367
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[ないし](http://dictionary.goo.ne.jp/jn/162407/meaning/m0u/) is a conjunction
that has two meanings:

  1. range of numbers

> 二年ないし三年 _from two to three years_ ; _two up to three years_

  2. "and/or" with some nuance of "by extension", such as...

> 母ないし親として _as a mother, or more generally, a parent_  
>  新幹線ないし特急で _by shinkansen or (if failed) express train_  
>  日本ないし韓国 _Japan, and (even) also Korea_

I don't know what relation lies between 基底 "basis" and パターン "pattern" in your
context, but logically it only means OR in any case.
CC BY-SA 3.0
2017-04-13T10:40:27.397
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answer