csvreadで有効数字を増やすには？

Hi,

I try to read a csv file with 'csvread' command, however,

values with more than 5 digits are rounded into 5 digits.

For instance;

12345.1234 -> 1.2345e+4

I need to get 1.23451234e+4

How can I increase the effective digits for csvread commnad?

Thank you inadvance.

Answer 1

[madhan ravi]

format long % at the beginning of your code
doc format % read it
doc dlmread 
doc readtable 

[madhan ravi]

Haruo Kodama's answer moved here for consistency:

Actually, I tryed 'format' and 'dlmread'.

Still, I can not increase digits more than 5.

Can I use 'precision' with dlmread?

What is wrong?

[madhan ravi]

while writing the csv file use dlmwrite with precision option and then simply use dlmread to read the file

[Haruo Kodama]

Thank you,

I will try it !

[Haruo Kodama]

I tryed dlmread, but the reslts are the same.

1.2345e+4

What seems to be a promlem?

[madhan ravi]

how do I know ? you didn‘t upload your code , you didn‘t upload your file ..

[Haruo Kodama]

Yes ! It works !

Thank you for your support.

I just checked only works space table, and it showed only five digits,

but, once I exported data with dlmwrite + 'precision', I got right values!

It was my fault. Sorry!

Now, I found that dlmread and dlmwrite+precision are used

to increase the effective digits.

Thank you again.

[madhan ravi]

Anytime :) , if my answer worked make sure to accept the answer.