CODEWITHSUNDEEP
pythonpandasscipy
Dileesh Dil
Dileesh Dil

Reputation: 199

ValueError: object arrays are not supported

I have created a matrix with 100 columns from a text file by counting the value ":READ" out of 100 entries. ie: vector[0][0] = number of :READ in first 100 entries in the file, vector[0][1]= number of :READin next 100 entries in the file and so on using the following code
`

for i in range(start,len(df1),100):

df2=df1.iloc[start:end,]

count=df2.str.count(":READ").sum()
vector[p].append(count)

filewriter.writerow([start, count])
start=end
end=end+100
if(q<window):
    q=q+1
else: 
    q=0
    p=p+1
    vector.append([])

and when I use it to calculate eigen values,

e_vals, e_vecs = LA.eig(vector)

It gave the following error

ValueError: object arrays are not supported

what could be done? i am not good in python coding.

Upvotes: 4

Views: 17226

Answers (1)

senajoaop
senajoaop

Reputation: 355

Try checking the type of the elements, with a simple

print(type(vector[0][0]))

I was having the same error, and in my case, all my elements were:

<class 'sympy.core.numbers.Float'>

After converting every element to float with:

for i in range(len(vector)):
     for j in range(len(vector[i]):
          vector[i][j] = float(vector[i][j])

I got the results I wanted.

Upvotes: 1

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