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質問タイプ - 式

From LimeSurvey Manual

Revision as of 11:25, 27 February 2014 by FuzzyBot (talk | contribs) (Updating to match new version of source page)

概要

注意: この質問タイプは、バージョン1.92から使えるようになりました。

この質問タイプは、数式(計算式やカスタムレポート)を作って、データベース内に格納しておくものです。数式マネージャで対応している文法を使えます Expression Manager 。後に述べるように、数を扱うためには、質問の詳細設定であらかじめ'数字のみ'入力可能にしておく必要があります。

Editing an equation

If you use the HTML editor and need a clean text or a clean numeric value, you need to use HTML source.

Equation seems OK
View source show extra part, not needed. And if numeric is needed : this can break calculation.
We remove all extra HTML, this ensure to have a clean numeric value.

Alternative is to set your preference to use Popup mode if you use a lot of Equation question type


Core settings

回答必須

説明

このオプションにより、アンケートの質問に回答者が必ず答えるようにすることができます。回答必須の質問に回答しない場合、回答者は先に進むことができません。ある質問に複数のサブ質問があり、特定のサブ質問のみを回答必須とする場合は、ロジックタブの下にある最小回答数属性を使用します。

プレインストールされたテーマを使用している場合、必須の質問属性を有効にすると、質問の横に赤いアスタリスクが表示されます。 表示したくない場合は、こちらを参照してください。


設定可能な値

  • オン - 参加者が次のページに進む前に質問に回答する必要があります。回答の選択肢に「回答なし」は表示されません。
  • ソフト - 質問に回答せずに次のページに進もうとすると警告が表示されますが、参加者は警告を無視して先に進むことができます。「回答なし」オプションは表示されます(アンケートの表示設定で有効になっている場合)。
  • オフ(規定値) - 質問に回答しなくてもよくなります


Condition (previously "Relevance equation")

Description

If the result value of the condition is "1" or "true", the question is "relevant" in the survey context, i.e. it is shown to the survey participant. If not, the question is hidden. Any survey question allows you to specify a relevance equation. This function is the successor of conditions and supports much more complex conditional logic.

Syntax Highlighting

Whenever you save the condition, it is evaluated and syntax-highlighted. Any errors will be color coded so that you can quickly detect and fix them.

 Hint: To check if all conditions are used correctly within your survey, read about our show logic file feature.


Valid values

  • Any condition that makes use of the ExpressionScript syntax, without surrounding curly braces.

Examples

Here are good examples of syntax highlighting.


Advanced settings

Always hide this question (hidden)

Description

If enabled, the question will always be hidden - it will not be displayed to the survey participants. This function can be used in the following scenarios:

  • If you wish to prefill a question with a URL and you want not to have it displayed on the screen. This overrides any conditions used within the survey because the respective question will not even be embedded on the page.
  • If you wish to store or calculate a value on the fly via the ExpressionScript - Presentation.
Note: A common question type that is used with this function is the Equation one.

Available options

  • On
  • Off (default)


Note: unlike all other question types, if an equation is hidden, it is still computed and its value is still stored in the database.


Numbers only (numbers_only)

Description

If you enable this option, the participant can only enter numbers in the text box(es).

For the equation question types, this setting indicates that the result could only be a number, not a string. This will guarantee proper calculations/conversions in follow-up equations regarding the decimal mark.

Behavior by question type

  1. Default: If the subject enters a value that is not a number, that value is immediately cleared from the text box so that the subject can enter an appropriate value.
  2. Array (Texts): If the numbers only option is disabled, the "Show totals for" and "Show grand total" options will be overruled, while the total text boxes will not be displayed.
  3. Equation: Enabling this option will force the equation results to be converted to a numeric value. If the equation result is not a number (and not blank), the equation will return NaN, being saved as an empty string in the response table.

Available options

  • On
  • Off (default)


Insert page break in printable view (page_break)

Description

This attribute is only active when you actually print a survey from the Printable View. It forces a page break before the question.

Available options

  • On
  • Off (default)



Show in public statistics (public_statistics)

Description

This attribute allows the survey administrator to chose if a particular question results should be displayed to the survey participants after they submitted the survey.

Note: To have the statistics displayed on the last page, do not forget to enable this functionality from the presentation & navigation settings. Otherwise, no statistics link will be displayed at the end of your survey.

The default setting for each question is 'Off' (=Do not show the question statistics to the respondents). You have to enable this for every single question if you want to show the survey statistics of that (those) particular question(s) to the survey participants after the survey submission.

Available options

  • On
  • Off (default)



SPSS export scale type (scale_export)

Description

This is used for SPSS export only. This attribute overrides the default scale guessed by SPSS. To learn what the different measurement scales do, please read the related SPSS documentation.

Available options

  • Default (default)
  • Nominal
  • Ordinal
  • Scale