Determine the size of a sample
In the framework of a survey, you may need to calculate the size of the necessary sample in function of the accepted error of estimation.
In order to facilitate this stage, we put in your disposition a tool online allowing to calculate the size of the sample:
http://www.sphinxonline.net/sphinx/aide/calculechantillon.htm
Use the sub-samples
You can at anytime decide to use a sub-sample (profile), allowing to filter the observations displayed in the central zone. To create a new sub-sample, click on the button 
of the section Sub-samples of the left lateral explorer.
You reach the following dialog box where you can define the profile you wish to create. In our example, we want to create the profile « 18-24 » which allows to display only the observations of the people aged between 18 et 24 years.
By clicking OK, your sub-sample will be created and will appear, here under the title 18-24, in the part Sub-samples of the lateral explorer. To filter your observations according to the sub-sample you wish, select it in the left lateral explorer, by clicking twice.
Characterize
Characterizing allows you to create a certain number of lexical variables which give you information about a chosen text variable. For example, you can know the richness of a response (number of different words), the principal words of the response etc…
- In the tab Texts, click on the button Characterize.
You reach the following dialog box, allowing you to select the text variable you wish to work on.
You reach the following dialog box, allowing you to select the text variables (s) you wish to work on.
1 Define the words you want to consider for the creation of the variables
2 Choose the variables to create
3 You can ignore the words tools. Click 
to open the dialog box from which you can load a dictionary of the words tools to ignore and select other options.
Choose on which position you want to display the variables created and click Finish to validate and quit the assistant.
Visualize the verbatim
- In the tab Texts, click on the button Verbatim.
You reach a dialog box allowing you to designate the text question(s) to display in the central working area.
Lemmatise
- In the tab Texts, click on the button Lemmatise.
You reach a dialog box allowing you to select the text variables you wish to lemmatise.
Then you will be asked to choose the new variables on which you want to work.
You can transform the variables that you have selected into a lemmatised text (infinitive, masculine, singular) or generate grammatical categories, which means to replace each response of a variable by its lemma and reduce it to only verbs, nouns, adjectives.
To finish, select the zone where you wish to create the new variable(s).
