r****x
发帖数: 3613 | 1 i know i'm new to coding, i have a for loop reading data from a bunch of fil
es. I need to analysis data after I read one file, then use the loop to read
new file. But the data just grows into a bigger array with all the reading
data. How do I avoid this? | X****r
发帖数: 3557 | 2 If you rephrase your question with better description of your problem
you might be more likely to get an answer here.
fil
read
reading
【在 r****x 的大作中提到】
: i know i'm new to coding, i have a for loop reading data from a bunch of fil
: es. I need to analysis data after I read one file, then use the loop to read
: new file. But the data just grows into a bigger array with all the reading
: data. How do I avoid this?
| b**u
发帖数: 1206 | 3 malloc ptr1 for file1, malloc ptr2 for file2,...
link list for ptr1, ptr2,... | r****x
发帖数: 3613 | 4 sorry, my problem is I try to load files with loop, each file contains diffe
rent size of array. I need to analyse each file then proceed to next one. wh
en the first array is finished, the 2nd array just adds into the first one,
until the dimensions mismatch. Do you have any solution to this problem?
【在 X****r 的大作中提到】
: If you rephrase your question with better description of your problem
: you might be more likely to get an answer here.
:
: fil
: read
: reading
| X****r
发帖数: 3557 | 5 It's better this time, but you still didn't provide enough information
for anyone to help you out. Which programming language are you using?
How the array are read from file? What prevented you from just creating
a new variable to hold the new array each time?
diffe
one. wh
one,
【在 r****x 的大作中提到】
: sorry, my problem is I try to load files with loop, each file contains diffe
: rent size of array. I need to analyse each file then proceed to next one. wh
: en the first array is finished, the 2nd array just adds into the first one,
: until the dimensions mismatch. Do you have any solution to this problem?
| r****x
发帖数: 3613 | 6 matlab, reading txt files, data seperated by column, I have to use regexp re
ad data. One major problem is I don't know how many rows in each file, thus
I can only use 'while' to read one file. To loop these files, the rows are a
dded one after another, don't know when to stop.
【在 X****r 的大作中提到】
: It's better this time, but you still didn't provide enough information
: for anyone to help you out. Which programming language are you using?
: How the array are read from file? What prevented you from just creating
: a new variable to hold the new array each time?
:
: diffe
: one. wh
: one,
| X****r
发帖数: 3557 | 7 So are you using double loops? i.e. the outer loop for each file and
the inner loop for each row in the current file? If this is the case
why don't you just reset your array/matrix that holds the data to
empty each time before you enter the inner loop?
regexp re
thus
are a
【在 r****x 的大作中提到】
: matlab, reading txt files, data seperated by column, I have to use regexp re
: ad data. One major problem is I don't know how many rows in each file, thus
: I can only use 'while' to read one file. To loop these files, the rows are a
: dded one after another, don't know when to stop.
| r****x
发帖数: 3613 | 8 yes, i use double loops.
i tried this way, but it didn't work out. because inner loop is 'while'
and counter+1, since I don't know the row number of that data, it's just
text files contains numbers.
Any chance to store all the data
eg 2dimensional array into 3 dimensional array (each data with different
siz
e)?
【在 X****r 的大作中提到】
: So are you using double loops? i.e. the outer loop for each file and
: the inner loop for each row in the current file? If this is the case
: why don't you just reset your array/matrix that holds the data to
: empty each time before you enter the inner loop?
:
: regexp re
: thus
: are a
| X****r
发帖数: 3557 | 9 Yes, in matlab you can create cell arrays. Each element of the cell
array is an independent matrix that can has its own dimensions.
Check the help page of 'cell'.
【在 r****x 的大作中提到】
: yes, i use double loops.
: i tried this way, but it didn't work out. because inner loop is 'while'
: and counter+1, since I don't know the row number of that data, it's just
: text files contains numbers.
: Any chance to store all the data
: eg 2dimensional array into 3 dimensional array (each data with different
: siz
: e)?
| r****x
发帖数: 3613 | 10 关键问题还是在第一个文件读完后他不停的继续读，直接全把row加上去了，我实在是
没辙了。。。
【在 X****r 的大作中提到】
: Yes, in matlab you can create cell arrays. Each element of the cell
: array is an independent matrix that can has its own dimensions.
: Check the help page of 'cell'.
| | | X****r
发帖数: 3557 | 11 你还是没有把问题表达清楚。什么叫把直接全把row加上去了？说不清楚贴点相关的代码
上来也好啊。
【在 r****x 的大作中提到】
: 关键问题还是在第一个文件读完后他不停的继续读，直接全把row加上去了，我实在是
: 没辙了。。。
| r****x
发帖数: 3613 | 12 column是固定的，只是row要逐行的读，因为不知道每个文件有多少row所以只能用
while
代码
【在 X****r 的大作中提到】
: 你还是没有把问题表达清楚。什么叫把直接全把row加上去了？说不清楚贴点相关的代码
: 上来也好啊。
| t****t
发帖数: 6806 | 13 用while和把所有的row全都加在一个array里没有必然的关系. 别人问你什么叫"直接全
把row加上去了", 你回答因为啥啥啥所以只能用while, 这个叫做答非所问.
我知道你不会编程, 或许心里也很着急, 可是基本的逻辑都没有, 也不提供任何信息,
这样子你还是自己想办法帮自己吧.
【在 r****x 的大作中提到】
: column是固定的，只是row要逐行的读，因为不知道每个文件有多少row所以只能用
: while
:
: 代码
| X****r
发帖数: 3557 | 14 好吧，我虽然觉得我算是很有耐心的人，也相信楼主遇到的只是一个很简单的小问题，
但是这么多帖子下来我还搞不清究竟是怎么回事，看来是无能为力了。
,
【在 t****t 的大作中提到】
: 用while和把所有的row全都加在一个array里没有必然的关系. 别人问你什么叫"直接全
: 把row加上去了", 你回答因为啥啥啥所以只能用while, 这个叫做答非所问.
: 我知道你不会编程, 或许心里也很着急, 可是基本的逻辑都没有, 也不提供任何信息,
: 这样子你还是自己想办法帮自己吧.
| s*******e
发帖数: 664 | 15 我看着都着急，呵呵
matlab我倒是知道些，尽管也不强
【在 X****r 的大作中提到】
: 好吧，我虽然觉得我算是很有耐心的人，也相信楼主遇到的只是一个很简单的小问题，
: 但是这么多帖子下来我还搞不清究竟是怎么回事，看来是无能为力了。
:
: ,
| S*********g
发帖数: 5298 | 16 Not possible in matlab.
you can't have a variable that is 3D while a(1,:,:) has difference size than
a(2,:,:).
However, you can attack this using structure.
a.file1 = (all data in file1 as a 2D array);
a.file2 = (all dall in file2 as a 2D array);
If your data are just a rows of number, why not use matlab's function to
load the whole file into one 2D array ocne for all?
If you can't use matlab's function, only you can tell how to determine you
hit the end of the file. No one else can answer your
【在 r****x 的大作中提到】
: yes, i use double loops.
: i tried this way, but it didn't work out. because inner loop is 'while'
: and counter+1, since I don't know the row number of that data, it's just
: text files contains numbers.
: Any chance to store all the data
: eg 2dimensional array into 3 dimensional array (each data with different
: siz
: e)?
| S*********g
发帖数: 5298 | 17 幸好这几天值班的是你，不是thrust
【在 X****r 的大作中提到】
: 好吧，我虽然觉得我算是很有耐心的人，也相信楼主遇到的只是一个很简单的小问题，
: 但是这么多帖子下来我还搞不清究竟是怎么回事，看来是无能为力了。
:
: ,
| r****x
发帖数: 3613 | 18 thx a million!
it's quite hard for me to start programming, since I never really leanred it
.
than
【在 S*********g 的大作中提到】
: Not possible in matlab.
: you can't have a variable that is 3D while a(1,:,:) has difference size than
: a(2,:,:).
: However, you can attack this using structure.
: a.file1 = (all data in file1 as a 2D array);
: a.file2 = (all dall in file2 as a 2D array);
: If your data are just a rows of number, why not use matlab's function to
: load the whole file into one 2D array ocne for all?
: If you can't use matlab's function, only you can tell how to determine you
: hit the end of the file. No one else can answer your
| r****x
发帖数: 3613 | 19 最后还是解决了，简单地加了一个counter，唉～不是编程序这块料，这么点小问题卡
了我好几天:X
than
【在 S*********g 的大作中提到】
: Not possible in matlab.
: you can't have a variable that is 3D while a(1,:,:) has difference size than
: a(2,:,:).
: However, you can attack this using structure.
: a.file1 = (all data in file1 as a 2D array);
: a.file2 = (all dall in file2 as a 2D array);
: If your data are just a rows of number, why not use matlab's function to
: load the whole file into one 2D array ocne for all?
: If you can't use matlab's function, only you can tell how to determine you
: hit the end of the file. No one else can answer your
|
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