This question already has answers here:
Pretty-print a NumPy array without scientific notation and with given precision
(14 answers)
Closed 6 years ago.
When printing arrays, Numpy replaces trailing 0s with s, e.g.
[-0.678231 -0.618304 -0.6077 0.014845]
How can I fix this and make it print the 0s?
You can use numpy's set_printoptions with a custom formatter to set the precision and exact format of the output; for your case,
np.set_printoptions(formatter={'float': '{: 0.3f}'.format})
should do the trick.
Related
This question already has answers here:
Evaluating a mathematical expression in a string
(14 answers)
How to calculate an equation in a string, python
(2 answers)
Closed 6 months ago.
Question is in the title.
How do i convert a string (8*2) for example into an integer sum.
I have googled around a lot and found no way to solve this isue and i cannot directly get the sum as integers.
Edit: I tried eval but it won't work because the sum has an x instead of a *
This question already has answers here:
Python Remove Comma In Dollar Amount
(4 answers)
Closed 2 years ago.
I can't perform any math operations on these values that I had exported. I'm using xlwt library to do this. Any way to convert these values in the format so that I can be able to perform math operations on it.
float('3629,473.237'.replace(',', ''))
You can replace the commas, they make no sense except readablity
n = float("3629,473.237".replace(",",""))
To re-add commas as string, you can use format strings:
print("{:,}".format(n))
There are f-strings in python 3.6+
print(f"{n:,}")
No; you'll have to remove the comma manually.
float("123,000.12".replace(',',''))
If you have consistent data, you might as well remove all the commas and convert the result.
This question already has answers here:
How do I create an empty array and then append to it in NumPy?
(15 answers)
Closed 3 years ago.
I need to create an empty nd-array in python without zeros or ones functions looks like in c++ with this command for array 3*4 for integers:
int x[3][4]
Please help me
Numpy has a function for that. empty
This question already has answers here:
How to suppress scientific notation when printing float values?
(16 answers)
Convert Scientific Notation to Float
(3 answers)
Closed 3 years ago.
Is there a way to print the actual value instead of exponential value?
>>> val=0.00004
>>> print(str(val))
4e-05
As posted in here: How do I suppress scientific notation in Python?
print('{0:f}'.format(val))
Try this,
print('{:f}'.format(val))
This question already has answers here:
Change default float print format
(8 answers)
Closed 8 years ago.
In c++, there exists the cout.precision() to set the number of decimal digits I want to see when I print out a floating point number. Is there any equivalent solution in Python so that every time I want to print out a float I don't get those 11 extra digits that I don't actually need?
In Python you can use the format() function your floats explicitly:
print format(floatvalue, '.5f')
to output a float with 5 digits after the decimal. See the Format Specification Mini-Language for details on the formatting options.
You can also use the str.format() method to control how a float value is interpolated into a larger string, using the same formatting parameters.