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Re: st: how to read very long text lines?
From
"Li Chuntao (Tony)" <[email protected]>
To
[email protected]
Subject
Re: st: how to read very long text lines?
Date
Fri, 8 Mar 2013 15:13:28 +0800
I want to copy a specific line of a text file to another text file.
the line number is given, say 2nd line, but this line is too long,
more than 1000 characters.
Can I use "file read" and "file write" to handl it?
On Fri, Mar 8, 2013 at 2:58 PM, Phil Clayton
<[email protected]> wrote:
> What are you actually trying to achieve?
> Phil
>
> On 08/03/2013, at 5:56 PM, "Li Chuntao (Tony)" <[email protected]> wrote:
>
>> Thank you, Ryan. But i am still lost with my file reading.
>>
>> Tony
>>
>>
>> On Fri, Mar 8, 2013 at 2:30 PM, Ryan Kessler
>> <[email protected]> wrote:
>>> Hi Tony,
>>>
>>> The key here is to steer clear of the "=" sign; see -help macro-,
>>> -help limits-, and -help extended_fcn-.
>>>
>>> local long ""
>>> forval i=1/500 {
>>> local long "`long' `=`i'^2'"
>>> }
>>> di "`long'"
>>> di length("`long'")
>>> di "`: length local long'"
>>>
>>> Related discussion -->
>>> http://www.stata.com/statalist/archive/2011-09/msg00973.html
>>>
>>> Best,
>>>
>>> Ryan Kessler
>>>
>>> On Thu, Mar 7, 2013 at 11:22 PM, Li Chuntao (Tony) <[email protected]> wrote:
>>>> Dear Listers,
>>>>
>>>> I want to use Stata to read a text file line by line. Suppose the
>>>> file is d:\temp.txt. one of the line i specially interested is very
>>>> long, more than 1000 characters. I use the following code to read:
>>>>
>>>> capture file close myread
>>>> file open myread using d:\temp.txt , read text
>>>> file readmyrea line
>>>> while r(eof)==0 {
>>>> local linenum = `linenum' + 1
>>>> local myline=`" `macval(line)'"'
>>>> disp length(`"`macval(myline)'"')
>>>> file myrea hexun line
>>>>
>>>> }
>>>> file close hexun
>>>>
>>>> It seems that the maximium length for a string here is only 240.
>>>>
>>>> Is it possible to change it to longer?
>>>>
>>>> thanks
>>>>
>>>> Tony
>>>> *
>>>> * For searches and help try:
>>>> * http://www.stata.com/help.cgi?search
>>>> * http://www.stata.com/support/faqs/resources/statalist-faq/
>>>> * http://www.ats.ucla.edu/stat/stata/
>>> *
>>> * For searches and help try:
>>> * http://www.stata.com/help.cgi?search
>>> * http://www.stata.com/support/faqs/resources/statalist-faq/
>>> * http://www.ats.ucla.edu/stat/stata/
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/faqs/resources/statalist-faq/
>> * http://www.ats.ucla.edu/stat/stata/
>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/