Questions tagged [data-files]
209 questions
0
votes
4 answers
positioning the file pointer in a record
So, this is the question given in my book .
It is to read the following code and answere the question given below:
#include
class Book
{
int Bno;char title[20];
public:
void Enterval()
{
cin>>Bno;
cin.getline(title,20);
}
void…
kakashi
- 19
- 1
- 4
0
votes
1 answer
D3 error with data file
i'm on the project for finishing my degree on computation, and i have a problem with D3, basically it works if I pass the data directly to the code, but with the data on a file, it says "n does not exist". I don't know why is this happening, here's…
Amnor
- 380
- 6
- 21
0
votes
3 answers
Loading data file with too many commas in Python
I am trying to collect some data from a .txt file into my python script. The problem is that when the data was collected, it could not collect data in one of the columns, which has given me more commas than normally. It looks like…
Jacob Hermann Olesen
- 17
- 6
0
votes
0 answers
Get log file name of database from .mdf file
How to get .ldf file name from .mdf file header using c# .whether it is possible to get the .ldf file name from .mdf file header??if we can get means give code for that....
AishwaryaKasi
- 83
- 7
0
votes
1 answer
Reading more data files FORTRAN90
I have a question about f90 as title says.
I have many .dat files (say 15 files each with 2 columns and 2000 rows) that i need to work with.
I need to save all the data in a unique matrix (that will have 30 columns and 2000 rows).
But when I use the…
lalchimista
- 21
- 5
0
votes
1 answer
Array arithmetic bash shell
I have numerous(nTotal) number of files each with one column of length L of float numbers, I want to add entry in line i_th of all these file and at the end. Compute its average and standard deviation.
I first read each file. Then I try to add this…
PyPhys
- 129
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- 10
0
votes
2 answers
how to move undo datafile in running database without disturbing transactions?
Unfortunately one UNDO data file was misplaced in wrong location when I was adding space. I want to move that file to correct location. As it is Production database, I don't want to disturb the ongoing transactions. Can I offline that particular…
Neelima
- 27
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- 6
0
votes
1 answer
How to delete rows from a data file for which other data files have no data
Suppose that I have three tab-separated value data files: 2011.txt, 2012.txt, and 2013.txt. Each file has the same format, where rows are like this:
UserID Data Data Data ...
Each file only contains data for the year it is named after. I…
alex.jordan
- 296
- 2
- 11
0
votes
1 answer
How to take data files info to index and how to update a data file in an existing R package properly?
I have written an R package in which the names of the functions are in Turkish.
I wanna take that package to CRAN with internalization. I changed all of the Turkish names (of functions, of data sets) to English so that everybody can easily use the…
Erdogan CEVHER
- 1,788
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- 21
- 40
0
votes
2 answers
Easy way to compute Large data file python
I have to compute the data from a large file. File has around 100000 rows and 3 columns.
The Program below works great with a small test file but when trying to run with a large file it takes ages to display even one result. Any suggestions to…
user3964336
0
votes
1 answer
Scientific `d` notation not read in C++
I need to read a data file in which numbers are written in a format like this:
1.0d-05
C++ doesn't seem to recognize this type of scientific notation! Any ideas on how I could read/convert those types of numbers?
I need numbers (i.e. double /…
user3796935
- 29
- 1
0
votes
0 answers
Recover MySQL database from data folder without ibdata1
My WAMP directory accidentally get deleted by another user. Only data folder in MySQLis available. And, in that only database-folders (folders in "\bin\mysql\mysql5.6.12\data\" with name of databases) are available. Other files including "ibdata1"…
cyberwani
- 13
- 2
0
votes
0 answers
py2exe packing images/data files to exe
I have created a game in pygame and am trying to pack it all into an exe so others can play it with py2exe. The only thing I am having trouble with is my images folder, I have tried with all the examples from the data files page here:…
Slidon
- 393
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- 16
0
votes
1 answer
How to plot 3d graphs from multiple .dat files (or from multiple 2d graphs)?
In my project I basically need to plot 3D color coded surface graphs using MATLAB taking input from multiple .dat files ' kind of a text file'.
each .dat file contains a list of values of REFLECTION R wrt to launch angle theta. each file is for a…
user1552734
- 1
- 1
-1
votes
1 answer
ASAMMDF - MemoryError: Unable to allocate 16.8 MiB for an array with shape (2207220,) and data type float64
I am trying to extract data from a ".dat" file by using asammdf.
After extracting the data using asammdf, I am trying to convert the data into a dataframe that can be analyzed using pandas and matplotlib.
Following is the code that I am using for…
RanjanN
- 21
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