python - Manipulating data from csv using pandas -

-

There is a question about the data of pandals, what I am looking for to bring two columns from the CSV file, and Manipulate data before saving in the end.

The CSV file looks like this: 

  Year Month 2007 1 2007 2 2007 3 2007 4 2008 1 2008 3   
 This My current code is:  
  record = pd.read_csv (path) frame = pd.DataFrame (record) composite = datetime (frame ['year']. Unstable, frame [' Month ']. Unstable, 1)   
 is an error:  
  typeError: the series is "& lt; type' int '& gt;   
 Any ideas?   
 
 
 Daytime work on one Will not panda series (column of dataframe) you  to_datetim E  or you can use  datetime  within  applicable . You should do something like the following:  
  in [9]: DF out [9]: year months 2007 1 1 2007 2 2 2007 3 3 2007 4 4 2008 1 5 2008 3 in [10]: PDto_datetime (DF ['sal'] Ashstop (SR) + '-' + DF ['month']. Volatile (SR) + '-1') Out [10]: 0 2007-01- 01 1 2007-02-01 2 2007-03-01 3 2007-04-01 4 2008-01-01 5 2008-03-01 dtype: datetime64 [ns]   
 or use [11]: df.apply (Lambda X: Dataim (X ['' '', x ['month'], 1), axis = 1) [11]: 0 20 07-01-01 1 2007-02-01 2 2007-03-01 3 2007-04-01 4 2008-01-01 5 2008-03-01 dtype: datetime64 [ns]   < p>  Another edit : You can also parsing most dates with  read_csv , but then you need to adjust your  day  (Note, my data is in the string named 'data'):  
 in  [12]: df = pd.read_csv (StringIO (data), header = true, parse_dates = ['Date': ['Year', 'Month']}) [13]: df ['date'] = df ['date'] values.astype ('datetime64 [m]') [14]: DF Out [14]: Date 2007-01-01 1 2007-02-01 2 2 007-03-01 3 2007-04-01 4 2008-01-01 5 2008-03-01

Comments

Post a Comment

Popular posts from this blog

Pass DB Connection parameters to a Kettle a.k.a PDI table Input step dynamically from Excel -

-
Image
I have a requirement whenever I run my own kettle, dynamically took database connection parameters from an excel source Every run should go. I have an Excel column names: hostname, username, database, password. I want to pass these connection parameters to my table input stage dynamically whenever it runs the job. This is what I was trying to do. You can get it Connection parameters from the DB reading source (for example Excel or a CSV file in my example) < / Li> Store the parameters in the variable Using the variable in your connection's settings. Setting Variables Create another conversion for (you can not do it in the same conversion Uses): set variables element variable: The element that reads / writes your data creates a new connection and sets the connection parameter using $ {variable name_} Note that you will need to type in the field field in the field $ {password} Also keep in mind that this can be a security problem as the
Read more

multithreading - PhantomJS-Node in a for Loop -

-
I am trying to implement a screen-scraps application that opens a URL in which a parameter changes as it is for a loop: var data = [ '100', '101', '102', '103', '104']; (Var indexA = 0; indexA & lt; data.length; indexA ++) for {Phantom Generation ({'port': freeport}, function (pH) {ph.create page (function (page) {page.open ("http: //...++ data [index B] +" ... " , Status {console.log ("open site:" + data [index B], position); / * OLD * / indexB ++; page evaluation (function () {// page scrape and an object Return}, function {console.log (result.dataRequest); // here is the problem}); / * new and fixed * / indexB ++} first console Logs it: Open Site: 100 Success Opens Site: 101 Success B Ola Site: 102 Success Opening Site: 103 Success Opened Site: 104 Success Which is good. Data is verified in scrap HTML and from index to array Matches. So in page 101 I scrap '101 and retrieve' and pu
Read more

c++ - MATLAB .m file to .mex file using Matlab Compiler -

-
I know that it can speak as a very famous topic, but something that helps me with it Not found This scenario is: I have my functions function, no matter what's inside, it's a generic function that may depend on other toolboxes. Does. Has input and output; I want to generate the same myFun.mex function; : Lib myFun This way I get some new files: libmyfun.c libmyfun.dll Libmyfun.exp libmyfun.exports libmyfun .h libmyfun.lib Reading around and I think that Creating a myfun.cpp that is very famous is included: / * gateway function * / zero max function (ent NLHS, MXARRA * PLS [], int NRHS, CONST M Xeray * PHS []) Here is the Variable Deals * / / * code here * /} I have tried to do this and are called Regular of Max Generation: Max ('- v', 'myfun.cpp') But I get many errors, and I should say that my myfun.cpp copy / Paste Function is where I have a lot of doubts ... especially on input / output management. My q
Read more