shivsn questions

shivsn answers

• How to get numpy data dtype when reading csv?
• python: taking random sample from data but keeping the same distribution
• start pandas dataframe index from specified number
• How to sum up a column in numpy
• Adding a column header to a csv in python
• Quarter out of datetime64
• How to return the last primary key after INSERT in pymysql (python3.5)?
• Apply a split and take second element of result in Pandas column that sometimes contains None and sometimes does not split into more than 1 component
• Normalising pandas data frame using StandardScaler() excluding a particular column
• How to join two pandas Series into a single one with interleaved values?