• Register
0 votes
2.4k views

Problem :

I am getting below error:

TypeError: only length-1 arrays can be converted to Python scalars

How can I fix it?

6 5 3
6,930 points

Please log in or register to answer this question.

1 Answer

0 votes

Solution :

This error "only length-1 arrays can be converted to Python scalars" is raised when the function expects a single value but you pass an array instead.

PFB code will solve your issue

import numpy as np
import matplotlib.pyplot as plt

def f(x):
    return np.int(x)
f2 = np.vectorize(f)
x = np.arange(1, 15.1, 0.1)
plt.plot(x, f2(x))
plt.show()

You can skip the definition of f(x) and just pass np.int to the vectorize function: f2 = np.vectorize(np.int).

Further Readings:

https://github.com/tyiannak/pyAudioAnalysis/issues/190

9 7 4
38,600 points

Related questions

0 votes
1 answer 309 views
309 views
I was trying to write a programm using numpy and matplotlib. I am new to python programming. The code I wrote is: import numpy import matplotlib.pyplot def ThisFunction(a): return numpy.int(a) a = numpy.arange(3, 13.5, 0.7) matplotlib.pyplot.plot(a, ... 4, in ThisFunction return numpy.int(a) TypeError: only size-1 arrays can be converted to Python scalars how can I solve this problem?
asked Mar 15, 2020 LizzyM 6.1k points
0 votes
1 answer 4 views
4 views
Problem: f=np.loadtxt('Single Small Angle 1.txt',unpack=True,skiprows=2) g=np.loadtxt('Single Small Angle 5.txt',unpack=True,skiprows=2) x = f-g[:,:11944] t=range(len(x)) m=math.log10(abs(x)) np.polyfit(t,m) plt.plot(t,abs(x)) plt.show() I'm just not sure on how to fix my issue. It keeps saying: m=math.log10(abs(x)) TypeError: only length-1 arrays can be converted to Python scalars
asked Jan 7 Mashhoodch 6.1k points
1 vote
1 answer 54 views
54 views
Problem: I am doing a online course on python. I got an assginement from there. So I was trying to write a programm using numpy and matplotlib. I am new to python programming. The code I wrote is: import numpy import matplotlib.pyplot def ThisFunction(a): return ... .int(a) TypeError: only size-1 arrays can be converted to Python scalars Do anyone know why this error is happening, please help.
asked Apr 3, 2020 LizzyM 6.1k points
0 votes
1 answer 2.2K views
2.2K views
Problem : I am trying to convert my list into an array using Python, But I got below error ValueError: only one element tensors can be converted to Python scalars.
asked Oct 22, 2019 peterlaw 6.9k points
0 votes
1 answer 673 views
673 views
Problem : I am having below error in a title, and I don't know what's wrong. It was working when I used np.hstack instead of the np.append, but I want to make this faster, so using append. time_list the list of floats heights is the 1d np.array of ... <module> axe_x.append(time_list[np.arange(j+n,j+(time_interval-n))]) TypeError: only integer arrays with one element can be converted to an index
asked Jan 24, 2020 jwilliam 3.9k points
0 votes
1 answer 23 views
23 views
Problem: I have such Python code: import numpy as np import matplotlib.pyplot as plt def f(x): return np.int(x) x = np.arange(1, 15.1, 0.1) plt.plot(x, f(x)) plt.show() And such error: TypeError: only length-1 arrays can be converted to Python scalars How can I fix it?
asked Jan 10 Mashhoodch 6.1k points
0 votes
1 answer 25 views
25 views
Problem: I'm trying to run a code: f=np.loadtxt('Single Small Angle 1.txt',unpack=True,skiprows=2) g=np.loadtxt('Single Small Angle 5.txt',unpack=True,skiprows=2) x = f-g[:,:11944] t=range(len(x)) m=math.log10(abs(x)) np.polyfit(t,m)plt.plot(t,abs(x)) plt.show() m=math.log10(abs(x)) TypeError: only length-1 arrays can be converted to Python scalars. I'm just not sure how to fix my problem.
asked Nov 5, 2020 Han Li 710 points
2 votes
2 answers 595 views
595 views
Problem: I wrote the following code in python using numpy. But it gives me some error message. The code I wrote is: import numpy as np arrayone = np.array(['Human', 'Birds', 'Groots', 'Oats']) arraytwo = np.array(['Beach', 'Toast']) arraythree ... concatenate TypeError: only integer scalar arrays can be converted to a scalar index Can anyone sort out this error and solve this. Thanks in advance.
asked May 6, 2020 samhaz 5k points