Extracting data from a text file into an array

I have a large text file, I know how to get to the line that I want to extract the data from. The line contains thousands of numbers in the form:

Data1 x1 y1 z1 x2 y2 z2
Data2 x3 y3 z3 x4 y4 z4

I want Data1 to be the name of a new nx3 array and every number that comes after Data1 until the next Data2 to be stored under Data1 and so forth...

Any help/hints would be appreciated. Thanks.

Answer 1

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F

Answer 2

[Stephen23]

https://www.mathworks.com/help/matlab/matlab_prog/string-evaluation.html

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

Use one array, which could be numeric, cell, structure, etc.

[BlueSky]

So, how do I pull those data values from the 1 line in the text file to a nx3 array? That is my issue. I can avoid dynamically naming those array but doing some sort of If statement and if it matches the name in the string I would assign it a name.

My issue is that the thousands of data points are on one single line in the text file, they're are also in the following format: Data1 {{x1 x2 x3} {r1 r2 r3}} Data2 {{x4 x5 x6} {r4 r5 r6}} Data3 {{x7 x8 x9} {r7 r8 r9}} ....and it goes on for thousands of data points.

I want to extract and put these data points in nx3 arrays: data1 = [x1 x2 x3; r1 r2 r3; x4 x5 x6; r4 r5 r6; x7 x8 x9; r7 r8 r9]

Does this explain my need better? Please help. Thanks.