I have a scientific c++ project, which need to report some information, like performance in each iteration, time step size in each iteration, some other specific values per iteration and total values. Definitely, it is possible to dump this information to std output, redirect to a file, that is how it works now. But it would be nice to dump this to an xml file. First it is in human readable format. Second, if this format is possible to be imported by OpenOffice, LibreOffice, that the data would be display in a nice table view with computed max, min, average and some graphics. Is there a format for that?
OpenDocument Format (ISO/IEC 26300:2006) and Office Open XML (ISO/IEC 29500) are standard XML based file formats that support spreadsheets.
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I am using google benchmark library (https://github.com/google/benchmark/blob/main/docs/user_guide.md) to do time and complexity analysis of analgorithm in C++.
I read that is possible to get an output file in csv or json format and then plot the result. How can I do this?
I tried to follow the istructions on git library read me but it doesn't produce any output file...
My goal is to produce two plots:
how grows the execution time in funcion of the input dimension of the array
how grows the number of comparison in funcion of the input dimension of the array
I'm using python matplotlib.pyplot library to create the plots and in order to do it I think I need google-benchmark's data in a csv file.
I couldn't find that much documentation or discussion about this library on the web.
Could anyone help me pls?
I am having problems formatting Excel datetimes, so that it works internationally. Our program is written in C++ and uses COM to export data from our database to Excel, and this includes datetime fields.
If we don't supply a formatting mask, some installations of Excel displays these dates as Serial numbers (days since 1900.01.01 followed by time as a 24-hour fraction). This is unreadable to a human, so we ha found out that we MUST supply a date formatting mask to be sure that it displays readable.
The problem - as I see it - is that Excel uses international formatting masks. For example; the UK datetime format mask might be "YYYY-MM-DD HH:MM".
But if the format mask is sent to an Excel that is installed in Sweden, it fails since the Swedish version of the Excel uses "ÅÅÅÅ-MM-DD tt:mm".
It's highly impractical to have 150 different national datetime formatting masks in our application to support different countries.
Is there a way to write formatting masks so that they include locale, such that we would be allowed to use ONE single mask?
Unless you are using the date functionality in Excel, the easiest way to handle this is to decide on a format and then create a string yourself in that format and set the cell accordingly.
This comic: http://xkcd.com/1179/ might help you choose a standard to go with. Otherwise, clients that open your file in different countries will have differently formatted data. Just pick a standard and force your data to that standard.
Edited to add: There are libraries that can make this really easy for your as well... http://www.libxl.com/read-write-excel-date-time.html
Edited to add part2: Basically what I'm trying to get at is to avoid asking for the asmk and just format the data yourself (if that makes sense).
I recommend doing the following: Create an excel with date formatting on a specific cell and save this for your program to use.
Now when the program runs it will open this use this excel file to retrieve the local date formatting from the excel and the specified cell.
When you have multiple formats to save just use different cells for them.
It is not a nice way but will work afaik.
Alteratively you could consider creating an xla(m) file that will use vba and a command to feed back the local formatting characters through a function like:
Public Function localChar(charIn As Range) As String
localChar = charIn.NumberFormatLocal
End Function
Also not a very clean method, but it might do the trick for you.
First: I know this would be much easier if it was a .CSV but that is not possible (I'd 'a written the code in the time I wrote this post).
I want to insert numbers given by the user along with a time-stamp into a spreadsheet. There will be a graph in the spreadsheet that automatically generates based on columns a and b, hence the need to not be a .CSV. Column A holds Double-Floats of range 0 through 500 and Column B holds Date and Time information. Inserted rows must be at the top, thus pushing all existing data down by one row, each time.
I've been writing this manually and I think its time to stop doing that. I don't really care what language it is done in, but I would prefer C/C++ using at most the boost libraries. All libraries MUST be open-source. OS is Linux and input should from terminal or at least be given to the program as a parameter, such that the user's input could be piped into the program.
I found this, but I'm not sure if it is the best method as I'm not necessarily locked into python.
Insert row into Excel spreadsheet using openpyxl in Python
Thanks for any and all help.
Have you tried this? A C library that read Excel (xls) files: http://libxls.sourceforge.net.
Hope this meet your need.
An alternative: http://www.libxl.com, more powerful but not open source.
I am creating a pivot table in excel sheet by aspose.cells. I want the values to be formatted as Accounting, with a symbol, a comma and 2 decimal places. Is this possible with aspose.cells? Please suggest how to do this with Aspose.Cells and c#.
If you need Accounting number formatting for the PivotField, you may try to use the following numeric formatting using PivotField.Number attribute instead.
pivotTable.DataFields[0].Number = 43; //You may also try it with 44 if it suits your needs.
Alternatively you may try to use the following formatting string for NumberFormat custom attribute of PivotField. You may also check in MS Excel to get your desired custom strings to try with NumberFormat property.
_($* #,##0.00_);_($* (#,##0.00);_($* "-"??_);_(#_)
If you still face any confusion/issue, can you please share the sample Excel file in which you may manually set the desired number formatting for the Pivot Table fields in MS Excel, and share the file with us, so that we can test the scenario at our end.
Furthermore, can you please share the code/sample application with the template files (input, output and expected output file etc.). The files can also be shared in Aspose.Cells product support forum.
Please try using PivotField.NumberFormat property to specify his desired formatting, see the code segment below for reference:
//Specify the number formatting to the first data field added.
pivotTable.DataFields[0].NumberFormat = "$#,##0.00";
Moreover, we also recommend you use our latest version of Aspose.Cells for .NET 7.4.0 in which we made some more enhancements regarding PivotTables.
PS, I am working as Support developer / Technical Evangelist at Aspose.
I'm using pyuno to read an excel spreadsheet (running on linux.) Many cells have formulas referring to addins that are, obviously, not available. However the cell values are what I want.
But when I load and read the sheet, it seems those formulas are being evaluated and thus the values are being overwritten with errors.
I've tried several things, none of which have worked:
set flags AutomaticCalculation=False, MacroExecutionMode=NEVER_EXECUTE in the call to desktop.loadComponentFromURL
call document.enableAutomaticCalculation(False) on the loaded document
Any suggestions?
If formluas aren't a matter, you might circumvent the problem by processing a copy of your spreadsheet in which only the values (not the formulas) are present.
To achieve this quickly, select the whole sheet content, copy, special paste; then remove everything except "value". Save to a new file (make sure you don't overwrite the original file or every formula will be lost!). Your script should then be able to process this file.
This is an ugly solution, as there must be a way to do it programmaticaly.
Calc does not yet support using the cached results after loading the document. Libreoffice Calc does now use cached results for xls documents. The results are also stored in ods but are ignored while loading the document and the formula result is evaluated by compiling and interpreting the saved formula.
There are some plans to add this for ods and xlsx too but there are many ods producers out there writting incorrect results in the file. So till now the only solution is to have a second version of the document only saving the results (or implementing it inside calc).