Hi <br>I am purely new to python and numpy..  I am using python for doing statistical calculations to Climate data..<br><br>I  have  a  data set in the following format..<br><br>Year  Jan      feb       Mar    Apr.................   Dec<br>
1900  1000    1001       ,        ,                         ,<br>1901  1011    1012       ,        ,                         ,<br>1902  1009    1007       ,                                  ,<br>,,,,        ,           &#39;          ,        ,                         ,<br>
,,,,        ,           ,<br>2010  1008    1002       ,        ,                         ,<br><br>I actually want to standardize each of these values with corresponding standard deviations for  each monthly data column..<br>
I have found out the standard deviations for each column..  but now i need to  find the standared deviation  only for a prescribed mean value<br>ie,  when i am finding the standared deviation for the January data column..  the mean should be calculated only for the january data, say from 1950-1970. With this mean  i  want to calculate the SD  for entire column.<br>
Any help will be appreciated..<br><br><br>