So, I'm a noob, and after 2 hours of searching online, I can't find an example of my failed code ANYWHERE, nor can I find answers related to my specific dilemma, which is surprising since it seems like it would be a fairly common conceptual mistake.
Here's my code:
name = input('Who are you?')
if name == "Mike" or "mike":
print('Hi',name,', nice to see you!')
else:
print("I don't know you.")
All I want the program to do is print the 'Hi', name... statement if the user inputs Mike or mike. I'm not wanting to just change the case, but in the future I'd like to use 'Mike' or 'Susie' (or something like that).
Right now it's always printing the 'Hi', name... statement no matter what I input. If I delete one of the names, then it works.
Can someone tell me:
a) Why it doesn't work the way I tried coding this, and
b) What would be the easiest and/or most efficient way to code this, especially if I want to increase the number of inputs that are accepted?
Thanks all,
You did not give a programming language, but your problem is universal across all languages.
You are trying to cram a colloqial sentence into computer logic and it fails. The computer does not understand your human shortcuts, it needs it spelled out:
This is what you would say to another human:
if they are Mike OR Susie
This is what you mean by that:
if their name is Mike OR their name is Susie
And this is exactly what you need to tell the computer:
if name == "Mike" OR name == "Susie"
Please note that a good language/IDE combination with a good confiuration will throw you a lot of warnings and errors when you compile, it won't even let you run your colloqial human logic. If yours does not, you need to tune it up to assist you better and if it cannot be tuned up, you may want to think about using a better IDE or a better language in general.
Related
I see that there is a TestNumberer class in the OrigenTesters at https://github.com/Origen-SDK/origen_testers/blob/master/lib/origen_testers/generator/test_numberer.rb . However, it looks pretty bare, and doesn't look like its being used internally anywhere. So, my question is does this TestNumberer... do anything? I don't see anything in the guides about automatically generating test numbers. What I'd like is something like:
test_numberer.set_base(1000) # for example
test_numberer.set_offset(5)
func (..., test_number: test_numberer.next) #=> test_number = 1000
func (..., test_number: test_numberer.next) #=> test_number = 1005
Possibly even embed incrementing the test number into the func function itself in the interface.
Thanks!
(For the record, I actually already have this in one of my apps for personal use, but am wondering if OrigenTesters already has one, and if not, if it could use one)
No, that is old and dead code which should be removed.
There is a solution for generating test numbers though, and that is the TestIds plugin: http://origen-sdk.org/test_ids/
I'm still not totally happy with how it works, but I use it in production today in a large test flow module.
I would say it does solve these problems effectively:
How do you assign test (and/or bin) numbers within an IP test block, in such a way that it can be included in different SoC test programs which may each want to assign a different range or even a different numbering scheme to the tests for that IP.
How do you automatically assign test (and/or bin) numbers in such a way that they will stick and won't change when other tests are added or removed from the flow in future.
I don't really have anything specific that I know is wrong with it, just some niggles that have come up from time to time and it would be good to get other people using it and involved with it to help iron these out.
One of the things that I have come to realize is that it is easier to manage if you explicitly give tests a number (or bin) ID in the test flow like this:
func :blah, number: :blah_test1
func :blah, number: :blah_test2
This makes it easier to control when you want same-named tests to have the same number or not, whilst not locking down to any particular number.
Anyway, you should find the documentation of it pretty good and obviously ask further questions here if you have any.
I just joined recently and am really excited to dive into the world of programming. There is still a ton of stuff I don't know, but I'm very proud of myself because I feel like I'm making headway into programming, whereas I used to have a mental block before. I've always been an infrastructure type of gal. But anyway --
I am creating an excel spreadsheet for my new budget. Here is a screencap of my problem (According to rules, new user can't attach images):
http://i66.tinypic.com/hx53zm.png
So this is what I want it to do, logically speaking: Stay blank (B38) until something is entered. Do (B7-B14-B36) if all the fields have something in them. Otherwise, just subtract whatever's in either B14 and/or B36 from B7.
I'm sure it's really simple -- I just lack the knowledge since I'm new. I have been playing around with this for a few days and searching on Google, and I can't figure out how to make it work for my spreadsheet. I have tried the CountA, Count, If, Isblank statements... and just can't get it to go.
This isn't really important to anything in my life, it's just something I'm making for myself to keep my financials in order -- AND to give me practice with some coding.
Thank you for any help you can give me!
Chris
If I understand you correctly, you will want to add the following to B38
=IF(B7 <> ""; B7-B14-B36; "")
Depending on your version of Excel, you may need to replace the ; with ,
When writing API methods that count something I always lose a tremendous amount of time thinking about how to write the thing that is being counted.
Singular or plural?
For instance, how would you name a function that counts results?
getResultsCount or getResultCount ?
This might sound silly, plural sounds more logical, but since both forms are found in the wild (google gives ~4800 results for "getResultCount" and ~4600 for "getResultsCount"), I'm hesitating and it bothers me.
Disclaimer: I'm not a native English speaker :)
Is there only one grammatically correct form or is it a matter of taste?
You should naming it basically for what it will do, if getResultsCount make mores sense than getResultCount, name it getResultsCount, else, name it getResultCount.
Its not that hard, Ill you have to do is give name that sweets better accordinling to the what it will do.
I suggest you read the book Clean Code written by Robert C. Martin, it really give good tips about naming.
There is a questionnaire that we use to evaluate the student knowledge level (we do this manually, as in a test paper). It consists of the following parts:
Multiple choice
Comprehension Questions (I.e: Is a spider an insect?)
Now I have been given a task to make an expert system that will automate this. So basically we have a proper answer for this. But my problem is the "comprehension questions". I need to compare the context of their answer to the context of the correct answer.
I already initially searched for the answer, but it seems like it's really a big task to do. What I have search so far is I can do this through NLP which is really new to me. Also, if I'm not mistaken, it seems like that I have to find a dictionary of all words that is possible for the examiner to answer.
Am I on the right track? If no, please suggest of what should I do (study what?) or give me some links to the materials that I need. Also, should I make my own dictionary? Because the words that I will be using are in the Filipino language.
Update: Comprehension question
The comprehension section of the questionnaire contains one paragraph explaining a certain scenario. The questions are fairly simple. Here is an example:
Bonnie's uncle told her to pick apples from the tree. Picking up a stick, she poked the fruits so they would fall. In the middle of doing this, a strong gust of wind blew. Due to her fear of the fruits falling on top of her head, she stopped what she was doing. After this, though, she noticed that the wind had caused apples to fall from the tree. These fallen apples were what she brought home to her uncle.
The questions are:
What did Bonnie's uncle tell her to do?
What caused Bonnie to stop picking apples from the tree?
Is Bonnie a good fruit picker? Please explain your answer.
The possible answers that the answer key states are:
For number 1:
1.1 Bonnie's uncle told her to pick apples from the tree
1.2 Get apples
For number 2:
2.1 A strong gust of wind blew
2.2 She might get hit in the head by the fruits
For number 3:
3.1 No, because the apples she got were already on the ground
3.2 No, because the wind was what caused the fruits to fall
3.3 Yes, because it is difficult to pick fruits when it's windy.
3.4 Yes, because at least she tried
Now there are answers that were given to me. The job that the system shall be able to do is to compare the context of the student's answer to the context of the right answer in order for the system to successfully be able to grade the student's answer.
One simplistic way of doing this that I can think of (off the top of my head) is to use a string similarity metric like cosine or jaccard to identify whether certain keywords appear in a test answer and the known correct answer.
Extracting these keywords automatically could be done with part of speech tagging using NLP. For example, you could extract all nouns (and possibly verbs). Then, representing each answer as a vector of keywords, you could compare the test vector with the known correct vector.
For example, in the second question, the vector for the two possible answers could be
gust, wind, blew
hit, head, fruits
An answer like "she picked up a stick" with the keywords: picked, stick would have a very low score as compared to something like "afraid of fruit falling on her head" with keywords: fruit, falling, head.
Notes:
This can detect only wildly wrong answers. Wrong answers containing the right keywords would not be detected by this technique. :)
I'm not sure about non-english sentences. If that is the case, you might want to take every word in the answer as a keyword (removing stopwords). This question might help as well.
My reading of this article suggests that a benefit of ReCAPTCHA is that it can have humans verify words not recognised in the OCR/digitization of books. It does this by using these words in "Are you human?" tests. So ReCAPTCHA kills two birds with one stone. Great!
But I dont get it. If the word can't be recognised by the digitization process then what is the input entered, by the supposed human being, verified against? How does this work?
It shows two words. One of them the computer already knows, the other, it doesn't. It assumes that if you get the known one right, that you must know the other.
You don't know which of the two is already known so you, theoretically can't trick it. Additionally, it will replay a word with multiple people to get independent confirmation before sending it back to the source (newspaper company, book scanning group) as a valid answer.
But if a computer can't read such a
CAPTCHA, how does the system know the
correct answer to the puzzle? Here's
how: Each new word that cannot be read
correctly by OCR is given to a user in
conjunction with another word for
which the answer is already known. The
user is then asked to read both words.
If they solve the one for which the
answer is known, the system assumes
their answer is correct for the new
one. The system then gives the new
image to a number of other people to
determine, with higher confidence,
whether the original answer was
correct.
http://recaptcha.net/learnmore.html
Quoted from LEARN HOW reCAPTCHA WORKS
But if a computer can't read such a CAPTCHA, how does the system know the correct answer to the puzzle? Here's how: Each new word that cannot be read correctly by OCR is given to a user in conjunction with another word for which the answer is already known. The user is then asked to read both words. If they solve the one for which the answer is known, the system assumes their answer is correct for the new one. The system then gives the new image to a number of other people to determine, with higher confidence, whether the original answer was correct.