I have converted a mat file into python dictionary. Now how can i convert this into Pndas data frame.

CodePudding user response：

IIUC use if need create dictionary of DataFrames:

d = {k: pd.DataFrame(v) for k, v in matdata.items()}

CodePudding user response：

Assuming you want to flatten the arrays:

df = pd.DataFrame({k: v[0] for k,v in matdata.items()})

example:

matdata = {'a': np.array([[1,2,3], [4,5,6]]), 'b': np.array([[7,8,9],[10,11,12]])}

df = pd.DataFrame({k: v.ravel() for k,v in matdata.items()})

output:

   a   b
0  1   7
1  2   8
2  3   9
3  4  10
4  5  11
5  6  12