MATLAB Function Reference | ![]() ![]() |
Read an ASCII delimited file into a matrix
Graphical Interface
As an alternative to dlmread
, use the Import Wizard. To activate the Import Wizard, select Import data from the File menu.
Syntax
M = dlmread(filename,delimiter) M = dlmread(filename,delimiter,R,C) M = dlmread(filename,delimiter,range)
Description
M = dlmread(filename,delimiter)
reads numeric data from the ASCII delimited file filename
, using the specified delimiter
. A comma (,) is the default delimiter. Use '\t'
to specify a tab delimiter.
M = dlmread(filename,delimiter,R,C)
reads numeric data from the ASCII delimited file filename
, using the specified delimiter
. The values R
and C
specify the row and column where the upper-left corner of the data lies in the file. R
and C
are zero based so that R=0
, C=0
specifies the first value in the file, which is the upper left corner.
M = dlmread(filename,delimiter,range)
reads the range specified by range = [R1 C1 R2 C2]
where (R1,C1)
is the upper-left corner of the data to be read and (R2,C2)
is the lower-right corner. range
can also be specified using spreadsheet notation as in range = 'A1..B7'
.
Remarks
dlmread
fills empty delimited fields with zero. Data files having lines that end with a non-space delimiter, such as a semi-colon, produce a result that has an additional last column of zeros.
See Also
dlmwrite
, textread
, csvread
, csvwrite
, wk1read
, wk1write
![]() | divergence | dlmwrite | ![]() |