JSefa allow you to annotate Java classes that can be used in a serialization and de-serialization process. The tutorial demonstrates how this works with the CsvIOFactory class. (From the tutorial) Annotating a bean is as simple as specifying the locations of the items in the list of values, and if necessary, you’ll need to specify … Read more
I think the problem is that you have duplicated columns: two ( Female, R). Not sure whether it’s a bug or the duplicated columns are unacceptable. Here’s a workaround for you: First read the csv with tupleize_cols=True In [61]: df = pd.read_csv(‘test.csv’, header=[0, 1], skipinitialspace=True, tupleize_cols=True) In [62]: df Out[62]: (Male, R) (Male, R) (Male, … Read more
This can be done using Select the POST method and type the url In the Body menu header, click on form-data check-box In the key-value form that comes, 3.1 add the key as fisier 3.2 Choose the type as File from the dropdown near the key 3.3 A file chooser button opens, click it, borwse … Read more
I think this is what you want… Sub SaveWorksheetsAsCsv() Dim WS As Excel.Worksheet Dim SaveToDirectory As String Dim CurrentWorkbook As String Dim CurrentFormat As Long CurrentWorkbook = ThisWorkbook.FullName CurrentFormat = ThisWorkbook.FileFormat ‘ Store current details for the workbook SaveToDirectory = “H:\test\” For Each WS In Application.ActiveWorkbook.Worksheets WS.SaveAs SaveToDirectory & WS.Name, xlCSV Next Application.DisplayAlerts = False … Read more
I would recommend to use the CSV-library instead: require ‘csv’ CSV.open(‘test.csv’,’w’, :write_headers=> true, :headers => [“numerator”,”denominator”,”calculation”] #< column header ) do|hdr| 1.upto(12){|numerator| 1.upto(12){ |denominator| data_out = [numerator, denominator, numerator/denominator.to_f] hdr << data_out } } end If you can’t use the w option and you really need the a+ (e.g., the data isn’t available all at … Read more
psql’s \copy (note the backslash) lets you copy to/from remote databases and does not require superuser privileges. psql \ -h $hostname -d $dbname -U $username \ -c “\copy mytable (column1, column2) from ‘/path/to/local/file.csv’ with delimiter as ‘,'” https://www.postgresql.org/docs/current/sql-copy.html
That’s how I’d do it: import os directory = os.path.join(“c:\\”,”path”) for root,dirs,files in os.walk(directory): for file in files: if file.endswith(“.csv”): f=open(file, ‘r’) # perform calculation f.close()
I think it takes a variable generated on-the-fly Try join file1 file12 -t $’\t’
Finally I found the answer to my question with the help of some ideas from @larsmans and @eickenberg. The problem was that X_train did not have the same number of elements in all the arrays. So, it was not able to form a 2D array. Now that I have added an additional value to that … Read more
I ran into this question looking to see if pandas can natively read partitioned parquet datasets. I have to say that the current answer is unnecessarily verbose (making it difficult to parse). I also imagine that it’s not particularly efficient to be constantly opening/closing file handles then scanning to the end of them depending on … Read more