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From: Jon on 1 Jun 2010 05:38
Hopefully I can get an answer to this. I've been trying to figure this out for a few hours. I simply need to split up a vector of strings like '100518' into a matrix of vectors '10', '05', and '18'. My code is this:

data1sd = textscan(fid,'%s %s %n %n %n %n %n %n','Delimiter','\t');
fclose(fid);

[sdfiletime] = data1sd{:,1}

sdfileyear = str2double(sdfiletime(:,1:2))
sdfilemonth = str2double(sdfiletime(:,3:4))
sdfileday = str2double(sdfiletime(:,5:6))

I get ??? Index exceeds matrix dimensions. For some reason sdfiletime is a vector of strings with a size of 1! I don't understand why this is the case when a few lines earlier in the code I was able to do this

underscores = strfind(locname, '_');
filetime = locname((underscores(1)+1):(underscores(2)-1));
fileyear = str2double(filetime(1:2));
filemonth = str2double(filetime(3:4));
fileday = str2double(filetime(5:6));

I've been going at this too long.
From: us on 1 Jun 2010 05:47
"Jon " <anti_pope.remove.this(a)hotmail.com> wrote in message <hu2kdr$lgr$1(a)fred.mathworks.com>...
> Hopefully I can get an answer to this. I've been trying to figure this out for a few hours. I simply need to split up a vector of strings like '100518' into a matrix of vectors '10', '05', and '18'. My code is this:
>
> data1sd = textscan(fid,'%s %s %n %n %n %n %n %n','Delimiter','\t');
> fclose(fid);
>
> [sdfiletime] = data1sd{:,1}
>
> sdfileyear = str2double(sdfiletime(:,1:2))
> sdfilemonth = str2double(sdfiletime(:,3:4))
> sdfileday = str2double(sdfiletime(:,5:6))
>
> I get ??? Index exceeds matrix dimensions. For some reason sdfiletime is a vector of strings with a size of 1! I don't understand why this is the case when a few lines earlier in the code I was able to do this
>
> underscores = strfind(locname, '_');
> filetime = locname((underscores(1)+1):(underscores(2)-1));
> fileyear = str2double(filetime(1:2));
> filemonth = str2double(filetime(3:4));
> fileday = str2double(filetime(5:6));
>
> I've been going at this too long.

show two or three data entries of

data1sd
% and
data1sd{1}

us
From: Jon on 1 Jun 2010 05:59
data1sd =

Columns 1 through 6

{691x1 cell} {691x1 cell} [691x1 double] [691x1 double] [691x1 double] [691x1 double]

Columns 7 through 8

[691x1 double] [691x1 double]

ans =

'100518'
'100518'
'100518'
'100518'
'100518'

Thanks for looking at this.


"us " <us(a)neurol.unizh.ch> wrote in message <hu2kun$ps1$1(a)fred.mathworks.com>...
> "Jon " <anti_pope.remove.this(a)hotmail.com> wrote in message <hu2kdr$lgr$1(a)fred.mathworks.com>...
> > Hopefully I can get an answer to this. I've been trying to figure this out for a few hours. I simply need to split up a vector of strings like '100518' into a matrix of vectors '10', '05', and '18'. My code is this:
> >
> > data1sd = textscan(fid,'%s %s %n %n %n %n %n %n','Delimiter','\t');
> > fclose(fid);
> >
> > [sdfiletime] = data1sd{:,1}
> >
> > sdfileyear = str2double(sdfiletime(:,1:2))
> > sdfilemonth = str2double(sdfiletime(:,3:4))
> > sdfileday = str2double(sdfiletime(:,5:6))
> >
> > I get ??? Index exceeds matrix dimensions. For some reason sdfiletime is a vector of strings with a size of 1! I don't understand why this is the case when a few lines earlier in the code I was able to do this
> >
> > underscores = strfind(locname, '_');
> > filetime = locname((underscores(1)+1):(underscores(2)-1));
> > fileyear = str2double(filetime(1:2));
> > filemonth = str2double(filetime(3:4));
> > fileday = str2double(filetime(5:6));
> >
> > I've been going at this too long.
>
> show two or three data entries of
>
> data1sd
> % and
> data1sd{1}
>
> us
From: Pekka Kumpulainen on 1 Jun 2010 06:01
"Jon " <anti_pope.remove.this(a)hotmail.com> wrote in message <hu2kdr$lgr$1(a)fred.mathworks.com>...
> Hopefully I can get an answer to this. I've been trying to figure this out for a few hours. I simply need to split up a vector of strings like '100518' into a matrix of vectors '10', '05', and '18'. My code is this:
>
> data1sd = textscan(fid,'%s %s %n %n %n %n %n %n','Delimiter','\t');
> fclose(fid);
>
> [sdfiletime] = data1sd{:,1}
>
> sdfileyear = str2double(sdfiletime(:,1:2))
> sdfilemonth = str2double(sdfiletime(:,3:4))
> sdfileday = str2double(sdfiletime(:,5:6))
>
> I get ??? Index exceeds matrix dimensions. For some reason sdfiletime is a vector of strings with a size of 1! I don't understand why this is the case when a few lines earlier in the code I was able to do this
>
> underscores = strfind(locname, '_');
> filetime = locname((underscores(1)+1):(underscores(2)-1));
> fileyear = str2double(filetime(1:2));
> filemonth = str2double(filetime(3:4));
> fileday = str2double(filetime(5:6));
>
> I've been going at this too long.

sdfiletime is probably a one column cell array so you can not index into second column like in sdfiletime(:,1:2).

This _should_ work if the file content is as I assume:
sdfileyear =str2double(cellfun(@(x) x(1:2),sdfiletime,'UniformOutput', false));
filemonth = str2double(cellfun(@(x) x(3:4),sdfiletime,'UniformOutput', false));
fileday = str2double(cellfun(@(x) x(5:6),sdfiletime,'UniformOutput', false));

If the date is always like that you could also read the date directly in parts of 2 numbers: replace the first %s in textscan with '%2f %2f %2f
Now
sdfileyear = data1sd{1};
filemonth = data1sd{2};
etc.

hth
From: Jon on 1 Jun 2010 06:13
Replacing the first %s in textscan with '%2f %2f %2f worked brilliantly! I had no idea you could do that. Thank you. The instruction manual makes it seem like %2f would just read 2 digits and then skip over the rest of it. I can't believe how much time I've wasted on this.

"Pekka Kumpulainen" <pekka.nospam.kumpulainen(a)tut.please.fi> wrote in message <hu2lp2$kcf$1(a)fred.mathworks.com>...
> "Jon " <anti_pope.remove.this(a)hotmail.com> wrote in message <hu2kdr$lgr$1(a)fred.mathworks.com>...
> > Hopefully I can get an answer to this. I've been trying to figure this out for a few hours. I simply need to split up a vector of strings like '100518' into a matrix of vectors '10', '05', and '18'. My code is this:
> >
> > data1sd = textscan(fid,'%s %s %n %n %n %n %n %n','Delimiter','\t');
> > fclose(fid);
> >
> > [sdfiletime] = data1sd{:,1}
> >
> > sdfileyear = str2double(sdfiletime(:,1:2))
> > sdfilemonth = str2double(sdfiletime(:,3:4))
> > sdfileday = str2double(sdfiletime(:,5:6))
> >
> > I get ??? Index exceeds matrix dimensions. For some reason sdfiletime is a vector of strings with a size of 1! I don't understand why this is the case when a few lines earlier in the code I was able to do this
> >
> > underscores = strfind(locname, '_');
> > filetime = locname((underscores(1)+1):(underscores(2)-1));
> > fileyear = str2double(filetime(1:2));
> > filemonth = str2double(filetime(3:4));
> > fileday = str2double(filetime(5:6));
> >
> > I've been going at this too long.
>
> sdfiletime is probably a one column cell array so you can not index into second column like in sdfiletime(:,1:2).
>
> This _should_ work if the file content is as I assume:
> sdfileyear =str2double(cellfun(@(x) x(1:2),sdfiletime,'UniformOutput', false));
> filemonth = str2double(cellfun(@(x) x(3:4),sdfiletime,'UniformOutput', false));
> fileday = str2double(cellfun(@(x) x(5:6),sdfiletime,'UniformOutput', false));
>
> If the date is always like that you could also read the date directly in parts of 2 numbers: replace the first %s in textscan with '%2f %2f %2f
> Now
> sdfileyear = data1sd{1};
> filemonth = data1sd{2};
> etc.
>
> hth
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