Thursday, September 17, 2020

PyQGIS - Get attribute column names and dataType

 Ocationally, I did like to check the attribute fields/columns of a layer I am working on. Sometimes to get their names, types or just to get the count of how many fields/columns are on that layer.

You could access some of these information when you open the layer's property window, under the information tab as seen below.


Thursday, September 10, 2020

Pandas Dataframe to Python Dictionary

Assuming we have this table of "Confirmed COVID-19 Cases in Nigeria" as seen below and we want to convert either the whole table or some of its columns to a python dictionary. If you don't know already, a python dictionary is a data structure that consists of a collection of key-value pairs.



The column are as follow:-

  1. Column A: States Affected
  2. Column B: No. of Cases (Lab Confirmed)
  3. Column C: No. of Cases (on admission)
  4. Column D: No. Discharged
  5. Column E: No. of Deaths