return max value from panda dataframe as a whole, not based on column or rows

Question

I am trying to get the max value from a panda dataframe as whole. I am not interested in what row or column it came from. I am just interested in a single max value within t

Answer 1

Max can be found in these two steps:

maxForRow = allData.max(axis=0) #max for each row
globalMax = maxForRow.max(); #max across all rows