Questions tagged [read-data]
101 questions
0
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0 answers
NFC communication - Mifare DESFire EV1 - AES - Read Data
I'm trying to read data with a Mifare DESFire EV1 - AES.
The authentication went well and I got a 0x00 + RNDAR that is matching the one on my side.
Now I need to read data with the 0xBD instruction but I keep having 16 random bytes as a…
Sebastien Pautet
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- 1
0
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0 answers
How to use task （or probably section） to read big-data while data-processing
As can be seen from the code below, the time for reading the big data will eat a large portion of the total CPU time.
In my opinion, there should be some way to efficiently enhance the efficiency of data-reading. For instance, when one thread is…
DaMi
- 65
- 7
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How to read "numeric form string data" without changing into integer data type？
I want to read data and specify the data type at the beginning.
I have csv data look like this, it's data type is "character"：
Id
"76561198042769362 "
"76561198049454009 "
"76561198066403163 "
"76561198079071374 "
And when I read data, it…
S.F. Yeh
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- 10
0
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0 answers
write and read NSData from external hardrive
I am searching for a way to write and read data from xcode program to an external hard drive.
If I navigate to my external hardrive via finder and go to video right click hold options and copy file path i get this.
/Volumes/GoPro…
Charlie
- 193
- 2
- 19
0
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1 answer
Read data from updating dat file in Fortran
I have an output from a code in dat format. The file has the following format
Text
Text
Text
Text
3241234234
234234
23423423
34123424
1324234
iteration pressure temperature density
1 1234 312 2.12
2 1235 321 2.15
3 1234 312 2.12
4 1235 321 2.15
5…
haris
- 13
- 2
0
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0 answers
How to read/calculte data using loop in python?
I am the new for python. I try to process data (g in following) using difference method, that subtracts one array from others. I have the following codes. The difference between code 1 and code 2 is: code 1 preallocates a space for list, and in the…
X.J
- 11
- 1
0
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0 answers
How to read XML data from an API in PHP?
I'm trying to read data from an API in PHP in XML format. I tried
PredictionCollection as $collection) {
$stmt =…
wannabeadev
- 13
- 3
0
votes
0 answers
How to succesfull read my tcpip connection
I implemented a few months ago a function that sends data from Matlab to a Weiss WSG50 gripper. This is a Robotic Gripper Tool and uses binary codes as commands. I established a connection with the tcpip function. I wrote my commands and sended them…
MaKaNu
- 346
- 1
- 15
0
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1 answer
how can i fix this syntax error in QBASIC about READ DATA
This is my code
INPUT "what year right now : ", thn1
CLS
thn2 = thn1
num = 0
PRINT "No Jenis Kelamin Tanggal Lahir NPM Nama"
10 READ jk$, tgl$, thl, npm$, nma$
IF jk$ = "0" THEN END
thn1 = thn2
thn1 = thn1 - thl
IF jk$ = "L" OR…
The Dark Lord
- 11
- 1
0
votes
1 answer
Loading Selected Column from SQL to PySpark
I am new to (Py)Spark. I have a very big dataset. I have two table which I want to join. The dataset is residing in SQL database. I am using the Jupyter Notebook.
So, I just want load from SQL table only column I need for my analysis. …
James Taylor
- 396
- 4
- 19
0
votes
1 answer
Need to use seek(), tell(), next() and readline() function together
In my case, I have two csv file (file1 and file2).
To simplify my question, let's say that I want to read elements of file1, 3 by 3 and file2 4 by 4 consecutively.
file1.csv (9…
Mas A
- 85
- 7
0
votes
1 answer
How to enter into enumarate() loop more than one time
I want to read a big data file 100 by 100. But my script reads only first 100 line, then it never enters in "for loop" for the rest.
More clearly, in the end, I get only lines from 0 to 100, but I want also 100-200, 200-300, 300-400 etc. I can't…
Mas A
- 85
- 7
0
votes
1 answer
I attempted to use tf.TextLineReader to read data line by line, but olny odd-numbered line was read in
I attempted to use tf.TextLineReader to read text dataset, but olny odd-numbered line was read in. I don't know why. How should i do to make it read data line by line?
import tensorflow as…
nomadlx
- 125
- 2
- 10
0
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0 answers
Serial Port does not return any data
I need to write a program that will read the data from the indicator. In the Device Manager on computer the indicator is defined as USB-ITN and create virtual serial port(COM18).
Here is my code:
using System;
using…
Igor Osipov
- 127
- 1
- 10
0
votes
1 answer
How to separate a CSV file with commas as eparators and as decimals in Python
I have this data in a CSV file and i want to read it in python. The problem is that the decimal points and the delimiter are both commas. How can I read the CSV file in a way that the 1,2,3,4,6,8,10,11 and 15 commas are used as delimiters and the…
