Select a number randomly and then select a higher number randomly python code?

Question

I am trying to build a psychological experiment for my PhD thesis. I am pretty new to python. What I am looking for is that I need to select a number from a list of numbers and then again select a number which should in one case higher than the previous one and in another case lower than the previous one.

The main list of pool of numbers is:

digit = range(0,30)
if cong = 'yes':
## select a number for a variable d1 from digit and
## select another number for a variable d2 from digit which is higher than  
## d1
else:
## select a number for a variable d1 from digit and
## select another number for variable d2 which is lower than d1

I have tried solving this but I guess not that expert right now. Would be grateful if anyone could help me solve this.

PS: This is my first question so I am now much aware about the standard practice of forum participation.

Thanks Vatsal

DYZ · Accepted Answer · 2017-09-08 07:30:11Z

2

LO, HI = 0, 30
d1 = random.randint(LO + 1, HI - 1) # Select a number between 0 and 30, exclusive
if cong == 'yes':
    d2 = random.randint(d1 + 1, HI) # Select a bigger number
else:    
    d2 = random.randint(LO, d1 - 1) # Select a smaller number

edited Sep 8, 2017 at 7:30

answered Sep 8, 2017 at 6:13

DYZ

57.3k10 gold badges73 silver badges101 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Adam Smith Over a year ago

@TomKarzes to be fair, so does the experiment. You can't select a higher number than the highest number in your range.

DYZ Over a year ago

@TomKarzes You are right. I restricted the original range to [1,29].

DYZ Over a year ago

I copied the incorrect single equal sign from the original post. Fixed.

Tom Karzes Over a year ago

Ok, looks like the exceptions should be gone now. No idea what OP actually wants though...

Sam Chats · Accepted Answer · 2017-09-08 15:34:22Z

2

randint() and randrange() should do the job:

import random

num_range = a, b  #Specify the initial range here. (0, 30) for you.
num_0 = random.randrange(a+1, b)  #Boundaries aren't included.
if cong == "yes":
    num_1 = random.randint(num_0+1, b)  #Select a larger number.
else:
    num_1 = random.randint(a, num_0-1)  #Select a smaller number.

edited Sep 8, 2017 at 15:34

answered Sep 8, 2017 at 6:13

Sam Chats

2,3211 gold badge14 silver badges36 bronze badges

2 Comments

Sam Chats Over a year ago

@TomKarzes What about my answer?

Tom Karzes Over a year ago

Also not sure what purpose assigning to num_range serves, since it's not used anywhere.

Collectives™ on Stack Overflow

Select a number randomly and then select a higher number randomly python code?

2 Answers 2

4 Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

4 Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related