Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: how to read very long text lines?


From   Carl Severson <[email protected]>
To   [email protected]
Subject   Re: st: how to read very long text lines?
Date   Fri, 8 Mar 2013 00:17:36 -0700

Is there a specific reason you are using Stata to do this?

I feel like there are a number of better tools to choose from... perl,
python, unix command line tools which I can't seem to remember the
names of this late at night, for example

Carl Severson

On Fri, Mar 8, 2013 at 12:13 AM, Li Chuntao (Tony) <[email protected]> wrote:
> 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/
*
*   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/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index