strread

Create a character vector containing numbers separated by spaces. Use strread to read the numeric data into a numeric array.

str = '0.41 8.24 3.57 6.24 9.27';
a = strread(str)

a = 1×5

    0.4100    8.2400    3.5700    6.2400    9.2700

Create a character vector containing numbers separated by spaces. Use strread to read the numeric data into separate variables.

str = '0.41 8.24 3.57 6.24 9.27';
[a, b, c, d, e] = strread(str)

a = 
0.4100

b = 
8.2400

c = 
3.5700

d = 
6.2400

e = 
9.2700

Create a character vector containing numbers separated by spaces. Use strread to read only the first three numbers in the character vector and format the data as floating point.

str = '0.41 8.24 3.57 6.24 9.27';
a = strread('0.41 8.24 3.57 6.24 9.27', '%4.2f', 3)

a = 3×1

    0.4100
    8.2400
    3.5700

Create a character vector containing numbers separated by spaces. Truncate the data to one decimal digit by specifying format %3.1f. The second specifier, %*1d, tells strread not to read in the remaining decimal digit

str = '0.41 8.24 3.57 6.24 9.27';
a = strread(str, '%3.1f %*1d')

a = 5×1

    0.4000
    8.2000
    3.5000
    6.2000
    9.2000

Create a character vector containing numbers separated by spaces. Read six numbers into two variables Use the format specifier %f twice to apply the same formatting to each output. The number of formats specified must match the number of outputs.

str = '0.41 8.24 3.57 6.24 9.27 3.29';
[a, b] = strread(str, '%f %f')

a = 3×1

    0.4100
    3.5700
    9.2700

b = 3×1

    8.2400
    6.2400
    3.2900

Create a character vector containing words and numbers separated by spaces and with commas separating each word-number pair.

str = 'Section 4, Page 7, Line 26';

Use strread to read text to one variable and numeric data to another. The format input '%s' designates that the first output will be character vectors separated by whitespace characters. '%d,' specifies that the second output will be signed integer values and ignoring ',' characters.

[name, value] = strread(str, '%s %d,')

name = 3x1 cell
    {'Section'}
    {'Page'   }
    {'Line'   }

value = 3×1

     4
     7
    26

Create a character vector containing words and numbers with commas separating each word-number pair.

str = 'Section 4, Page 7, Line 26';

Read the character vector delimiting with commas instead of spaces. Use the '%s' format to specify reading a character vector. Since three outputs are specified three formats must be specified.

[a, b, c] = strread(str,'%s %s %s', 'delimiter', ',')

a = 1x1 cell array
    {'Section 4'}

b = 1x1 cell array
    {'Page 7'}

c = 1x1 cell array
    {'Line 26'}