'float' object has no attribute 'exp' in spyder python

Question

import numpy as np  
from scipy import interpolate  
import pylab as py  
import pandas as pd  

def func(x1):  
    return x*np.exp(-5.0*x1**2)  
dataset=pd.read_excel('Messwerte_FIBRE1.xlsx')  
dataset=dataset.drop([0])  
index=[1]  
index2=[9]  
x=dataset.iloc[:, index]     
y=dataset.iloc[:, index2]  
x1=np.array(x)  
y1=np.array(y)  
fvals=func(x1)

File "C:/Users/Windows 10/.spyder-py3/RBF.py", line 10, in func
return x*np.exp(-5.0*x1**2)

AttributeError: 'float' object has no attribute 'exp'
Any1 can help me to solve this problem? Here is the png of my textfile

would you mind providing how is your 'Messwerte_FIBRE1.xlsx'is? — lmiguelvargasf
– lmiguelvargasf, Commented May 11, 2018 at 16:54
You can see in above question again. In bottom I have attached a snapshot of my Excel file — Umair Rehman
– Umair Rehman, Commented May 11, 2018 at 18:25
would you mind explaining more what you want to achieve with this logic? At first, it seems that somehow you have assigned a float to np. — lmiguelvargasf
– lmiguelvargasf, Commented May 11, 2018 at 19:33
I have solved the problem by changing these two lines: x1=np.array(x,dtype=float) y1=np.array(y,dtype=float) — Umair Rehman
– Umair Rehman, Commented May 11, 2018 at 22:09

9000 · Accepted Answer · 2018-05-11 16:57:52Z

1

np.exp(...)

'float' object has no attribute 'exp'

This means that you likely have redefined the name np, and now it's a floating-point number and not the numpy module any more.

Look around your code for np = ....

answered May 11, 2018 at 16:57

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1 Comment

Umair Rehman Over a year ago

I think problem lies here: return x*np.exp(-5.0*x1**2)

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