[open] Text input function - add maximum & minimum

Comments

• Josh

  May 2015 edited 9:11AM

  Hi Hollana,

  My apologies, but it's not really clear to me what you want to do. The code you copied here,

      def clamp(text_input, min_num, max_num): 
           if text_input < min_num: 
                 return min_num 
           elif text_input > max_num: 
                 return max_num 
           else: return text_input
  
           text_input = clamp(text_input, min_num, max_num)
  

  What do you exactly hope for this code to do?
  I guess you want people to indicate an amount, and just give a kind of warning when this amount is not within the given boundaries? Something like that can be easily implemented; however I need to know what strategy you were aiming for before I can point you in the right direction.

  Cheers,

  Josh
• hollana28

  June 2015 edited 9:11AM

  Hi Josh,

  Thanks for the reply. Sorry for the confusion.

  I'd like people to indicate an amount, but if that amount falls below a minimum or maximum number then a warning should come up and they have to change the amount.

  Cheers!
• Josh

  June 2015 edited June 2015

  Alright!
  Did you already manage to get this to work without the minimum/maximum message? What you could do is place the form item in a loop. Clicking on the loop item, you can tick an 'advanced options' box to reveal a break-if statement. Here you can make sure that your form is repeated until participants give a response that is within your desired boundaries - for instance: break if: =self.get('done')==True.
  Now inside the loop item, you have to place a second form, which is a copy of the first one but with the addition of your warning message. (By the way, the loop item only takes one item; hence you need to place a sequence item in the loop item, and add both forms to the sequence). The form with a warning message should only be played if the response was below the minimum or above the maximum. Clicking on the sequence item, you can define a run-if statement for this form: run if: [response]maximum. Further, the first form (without warnings) should only be run the first time, so here you can insert: [first_time] = True
  What you then need to do is alter the variable 'done' based on what people responded. So you'd place an inline_script at the end of your sequence, and insert the commands:

       first_time = False
       if minimum <= self.get('response') <= maximum:
               done = True 
  

  Lastly, the experiment will crash if it runs all of the above run-if statements while there is no such existing variable. Frankly, this is the case with the first iteration through the loop, since both 'done' and 'first_time' are made in the inline_script. Thus, you'd only need to place an additional inline script somewhere before the loop, and create these variables:

        first_time = True
        response = 0 
        exp.set('response', response) #makes the variable available outside inline_scripts
        exp.set('first_time', first_time) # so you can call it in a loop-item for instance.   
  

  Let me know how it goes.

  Cheers,

  Josh