[python] Pandas - Get first row value of a given column

To access a single value you can use the method iat that is much faster than iloc:

df['Btime'].iat[0]

Output:

1.2

Examples related to python

programming a servo thru a barometer Is there a way to view two blocks of code from the same file simultaneously in Sublime Text? python variable NameError Why my regexp for hyphenated words doesn't work? Comparing a variable with a string python not working when redirecting from bash script is it possible to add colors to python output? Get Public URL for File - Google Cloud Storage - App Engine (Python) Real time face detection OpenCV, Python xlrd.biffh.XLRDError: Excel xlsx file; not supported Could not load dynamic library 'cudart64_101.dll' on tensorflow CPU-only installation

Examples related to pandas

xlrd.biffh.XLRDError: Excel xlsx file; not supported Pandas Merging 101 How to increase image size of pandas.DataFrame.plot in jupyter notebook? Trying to merge 2 dataframes but get ValueError Python Pandas User Warning: Sorting because non-concatenation axis is not aligned How to show all of columns name on pandas dataframe? Pandas/Python: Set value of one column based on value in another column Python Pandas - Find difference between two data frames Pandas get the most frequent values of a column Python convert object to float

Examples related to indexing

numpy array TypeError: only integer scalar arrays can be converted to a scalar index How to print a specific row of a pandas DataFrame? What does 'index 0 is out of bounds for axis 0 with size 0' mean? How does String.Index work in Swift Pandas KeyError: value not in index Update row values where certain condition is met in pandas Pandas split DataFrame by column value Rebuild all indexes in a Database How are iloc and loc different? pandas loc vs. iloc vs. at vs. iat? Pandas - Get first row value of a given column Get first element of Series without knowing the index Head and tail in one line How do I use 'git reset --hard HEAD' to revert to a previous commit? How to read first N lines of a file? Is header('Content-Type:text/plain'); necessary at all?