Pandas KeyError: value not in index

Question

I have the following code,

df = pd.read_csv(CsvFileName)

p = df.pivot_table(index=[\'Hour\'], columns=\'DOW\', values=\'Changes\', aggfunc=np.mean).round(0         


        

Answer 1

please try this to clean and format your column names:

df.columns = (df.columns.str.strip().str.upper()
              .str.replace(' ', '_')
              .str.replace('(', '')
              .str.replace(')', ''))