how to read ascii data in a file using c

[jyothib86]

hello every one am new to c can anybody tell me how to read ascii eeg data ..

thanks in adance..

 

[navenmou]

Can you elaborate the doubt in detailed....

 

[bigdogguru]

Can you post or upload the ascii file you're attempting to read?

You might also include your program as well.

 

[jyothib86]

Can you elaborate the doubt in detailed....

i have collected eeg data where i have read its 2(time) and 4 (amplitude)column to get the waveform which r in ascii version am attaching the one such data plz suggest me

 

[jyothib86]

i have done it in matlab but i want to try in c also so plz suggest me . i have a eeg data which is in ascii form i need to read 2 (time)and 4 (amplitude)column to plot the signal am attaching the related data .

 

[thannara123]

in c Asci value reading ,you can take the following method

#include<stdio.h>
void main()
{
int i;
char c;
printf("Enter a Character To convert the ASCI value \n");
Scanf("%c",&C)
i=c;
printf(" the converted ASCII value is is %d",i);
}

 

[navenmou]

You dont need any particular logic to read ASCII data....just simply

print the data like

printf("%d ",variable);

so that it prints the data that corresponding to ASCII value..........

 

[bigdogguru]

Trim your data file down to the essential columns:

1,-12.78, -31116, -0.09, -14441, -0.04, -16675, -0.05
2,-12.75, -24519, -0.07, -10620, -0.03, -13899, -0.04
3,-12.73, -18812, -0.06, -7205, -0.02, -11607, -0.03
4,-12.70, -14236, -0.04, -4411, -0.01, -9825, -0.03
5,-12.68, -10850, -0.03, -2366, -0.01, -8484, -0.03
6,-12.65, -8537, -0.03, -1102, -0.00, -7435, -0.02
7,-12.63, -7035, -0.02, -552, -0.00, -6483, -0.02
8,-12.60, -6002, -0.02, -567, -0.00, -5435, -0.02
9,-12.58, -5089, -0.02, -948, -0.00, -4141, -0.01
10,-12.55, -4014, -0.01, -1475, -0.00, -2539, -0.01
11,-12.53, -2616, -0.01, -1948, -0.01, -668, -0.00
12,-12.50, -895, -0.00, -2219, -0.01, 1324, 0.00
13,-12.48, 1005, 0.00, -2208, -0.01, 3213, 0.01
14,-12.45, 2825, 0.01, -1909, -0.01, 4734, 0.01
15,-12.43, 4262, 0.01, -1381, -0.00, 5643, 0.02
16,-12.40, 5038, 0.02, -727, -0.00, 5765, 0.02
17,-12.38, 4981, 0.01, -66, -0.00, 5047, 0.02
18,-12.35, 4074, 0.01, 498, 0.00, 3576, 0.01
19,-12.33, 2482, 0.01, 900, 0.00, 1582, 0.00
20,-12.30, 535, 0.00, 1128, 0.00, -593, -0.00
21,-12.28, -1318, -0.00, 1227, 0.00, -2545, -0.01
22,-12.25, -2594, -0.01, 1285, 0.00, -3879, -0.01
23,-12.23, -2857, -0.01, 1415, 0.00, -4272, -0.01
24,-12.20, -1809, -0.01, 1726, 0.01, -3535, -0.01
25,-12.18, 649, 0.00, 2296, 0.01, -1647, -0.00
26,-12.15, 4390, 0.01, 3154, 0.01, 1236, 0.00
27,-12.13, 9072, 0.03, 4266, 0.01, 4806, 0.01
28,-12.10, 14191, 0.04, 5540, 0.02, 8651, 0.03
...
...
...

Declare a file handle

FILE *my_data;

Use fopen to open file for reading


my_data = fopen (my_filename, "r");


Then use fscanf to read data into predeclared variables

fscanf (my_data, "%f %f %i %i", &f1, &f2, &i1, &i2);

Then close the file using fclose

fclose (my_data);

Example of using these functions:

fscanf()

You can test the fscanf call in a while loop, when it returns null, end loop.