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Pyqt: How to maximize the column width in a tableview?
(2 answers)
Closed 7 years ago.
I'm having an instance of QTablewidget with some columns a few rows and some data in it.
Now I am searching for a way to make the columns fill the full width of the tablewidget. Also, I want all the columns to have the same width.
Is there a way to achieve this?
This code worked fine for me:
self.tablewidget_preview.horizontalHeader().setStretchLastSection(True) self.tablewidget_preview.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
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How do I expand the output display to see more columns of a Pandas DataFrame?
(22 answers)
Closed 3 years ago.
I have a dataset with 200000 rows and 201 columns. I want to have descriptive statistics of all the variables.
I tried:
'''train.describe()'''
But this is only giving the output for the first and last 8 variables. This there any method I can use to get the statistics for all of the columns.
probably, some of your columns where in some type other than numerical. Try train.apply(pd.to_numeric) then train.describe()
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Implement p-mean in excel
(1 answer)
Closed 3 years ago.
I'm trying to implement p-means, as laid out in this question
If p=2, I can do SQRT(SUMSQ(data)).
If p=3, I need to do CBRT(**SUM OF CUBES**(data))
And so on. The first part is easy to scale, I can just raise the whole thing to 1/N. But how would I implement sum of cubes, fourth powers, etc. ?
"But how would I implement sum of cubes, fourth powers, etc."?
With SUMPRODUCT:
If your data is in A1:A3 for example:
=SUMPRODUCT(A1:A3^3)
=SUMPRODUCT(A1:A3^4)
etc.
I'd ditch the use of SUMSQ here and just use SUMPRODUCT all around.
Scott's answer to another question of mine is what I ended up using:
=(SUM(IF(ISNUMBER(E2:E99),E2:E99^3))/COUNT(E2:E99))^(1/3)
This is an array formula (ctrl + shift + enter or it won't work).
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Round function (worksheet one) in Excel
(2 answers)
Specification of Excel floating point behaviour
(2 answers)
Why does Excel not round according to 8-byte IEEE 754
(1 answer)
Closed 4 years ago.
I have an excel file where I am looking to get the difference between 2 columns only if they are not blank and there is not an 'x' in the second column - I have this formula:
=IF(OR(Q17="",R17="",R17="x",),"",Q17-R17)
In Q17 I have 290 and in R17 I have 290 (Both formatted as numbers)
for some reason the value I am getting in the cell (when formatted as a number is 0.00) but when changed to general or scientific is 5.6843418860808E-14. it is driving me crazy because I have looked at everything and nothing is working. I cannot find what the issue is. Has anyone had any similar issues?
If i change the formula to Q17-R17 it produces the correct value of 0 though..
Hopefully this is okay but here is sample data where I am seeign the issue - its 3 rows all with the same scenario (i have tried reformatting the cells multiple times but nothing seems to work)
http://s000.tinyupload.com/?file_id=02537626623715446740
Perhaps use the CLEAN function to remove non-printable characters, which seems to be your problem.
=IF(OR(Q17="",R17="",R17="x",),"",CLEAN(Q17)-CLEAN(R17))
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Add a number to each selection in Sublime Text 2, incremented once per selection
(3 answers)
Closed 6 years ago.
I'm using Sublime Text 3 as a text editor. I need a shortcut way to save time by incrementing or decrementing the selected number.
When I press Alt+Up next to a number, it gets incremented by 0.1, Cmd+Alt+Up increments it by 10. I'm not sure whether that's default behaviour, I couldn't identify any plugins to be reponsible for this. However, there are several packages available from incrementing numbers.
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Excel formula to do the same as x=(b/N)*(-floor(N/2):floor(N/2)) in MATLAB
(2 answers)
Closed 8 years ago.
The 'floor' command in MATLAB is defined as "Round towards minus infinity.
floor(X) rounds the elements of X to the nearest integers
towards minus infinity."
Is there a similar command within Excel, or does anyone know how to perform the same action within Excel?
yes, you can use =INT(A1) formula. It rounds a number (from A1 cell) down to the nearest integer. Here is documentation.