I am going through some historical stock exchange data and I have stumbled on a few cases where the stock closing price is higher than the recorded high price; is this even possible or is there error in my data?
In case that this is possible, could someone please explain how it is that it is possible?
Edit: I don't understand why downvote a question that seems-to my eyes, at least- rather straightforward and admits an objective "yes/no" answer.
I am really baffled. I'd appreciate some guidance-even if you consider the question 'rubbish'-in order to 'improve' upon it.
I consider it really important to understand your data before starting to model it, otherwise you are just pushing garbage in your process and will undoubtably receive garbage as output.
Also, if the data are literred with measurement errors there are different techniques you need to use in order to get any sensible result.
As a final note consider that if the error-riden data come from prolific distributors then it's highly likely that other consumers of that data have been using inappropriate data and in all likelihood make inferences based on pure fiction!
I am not saying that this is the case but I don' t really know until I can figure out the answer to my question.
In closing, if you can relate to the issues raised in this edit please help me modify the question in a way that is acceptable.
Obviously, if you can answer the question please do.