Numpy how to dropzero

X = np.random.randn(1e3, 5)
X[np.abs(X)< .1]= 0 # some zeros
X = np.ma.masked_equal(X,0)
plt.boxplot(X) #masked values are not plotted

#other functionalities of masked arrays
X.compressed() # get normal array with masked values removed
X.mask # get a boolean array of the mask
X.mean() # it automatically discards masked values

Source: stackoverflow.com

Similar codes

2 votes317 views1 answer
Make tkinter window look less blury
Python
19 votes337 views1 answer
Pygame scale image python
Python
2 votes358 views1 answer
How store list in django session
Python
0 vote338 views1 answer
Cube finder python
Python
4 votes328 views2 answers
Python find smallest element in dictionary
Python
1 vote392 views1 answer
Python program to convert rupees to paise
Python
2 votes325 views1 answer
Pandas remame a no name column
Python
1 vote378 views1 answer
Python swap function
Python
0 vote311 views2 answers
Pandas groupby aggregate quantile
Python
20 votes327 views5 answers
Plotting confusion matrix
Python