Matlab - Seleccionar ciertas filas en un documento txt

hola que tal, yo tengo un problema similar pero aún no logro solucionarlo. Tengo el siguiente txt

# Mie Scattering # Version 2-3-3 (15:30:19 01/28/12)
# Oregon Medical Laser Center # http://omlc.ogi.edu
# by Scott Prahl # [email protected]
#
# radius 0.50000 [microns] (sphere radius)
# n_medium 1.00000 [---] (refractive index of medium)
# n_real 1.50000 [---] (refractive index of sphere)
# n_imag 0.00000 [---] (absorption of sphere)
# lambda_vac 0.63280 [microns] (wavelength in vaccuum)
# density 0.10000 [#/micron^3] (spheres per cubic micron)
#
# lambda 0.63280 [microns] (wavelength in medium)
# X 4.96459 [---] (size parameter)
# g 0.70765 [---] (average cosine of phase function)
# Qsca 3.8962 [---] (scattering efficiency)
# Qext 3.8962 [---] (extinction efficiency)
# Qback 1.9428 [---] (backscattering efficiency)
# Csca 3.06 [micron^2] (scattering cross section)
# Cext 3.06 [micron^2] (extinction cross section)
# Cback 1.5259 [micron^2] (backscattering cross section)
# mu_s 306 [1/mm] (scattering coefficient)
# mu_s' 89.459 [1/mm] (reduced scattering coefficient)
# mu_t 306 [1/mm] (total attenuation coefficient)
#
# The second column is normalized so that the integral of it over
# 4*pi steradians will be unity. The average of the 3rd & 4th
# columns is the second. The next three columns are normalized
# to the value at 0 degrees.
#
# natural = (|S1|^2+|S2|^2)/(pi X^2 Qsca)
# perpen = |S1|^2/(pi X^2 Qsca)
# parallel = |S2|^2/(pi X^2 Qsca)
# polarization = (|S1|^2-|S2|^2)/(|S1|^2+|S2|^2)
# S33 = Real(S2 * S1^*)
# S34 = -Imag(S2 * S1^*)
#
##theta natural perpen parallel natural perpen parallel polarization S33 S34
-176.400 0.03799 0.03644 0.03954 0.01970 0.01889 0.02050 -0.04077 -0.99893 0.02203
-172.800 0.03348 0.02783 0.03912 0.01736 0.01443 0.02028 -0.16863 -0.98155 0.09013
-169.200 0.02764 0.01680 0.03847 0.01433 0.00871 0.01994 -0.39194 -0.89695 0.20462
-165.600 0.02233 0.00710 0.03757 0.01158 0.00368 0.01948 -0.68230 -0.64708 0.34021
-162.000 0.01914 0.00192 0.03637 0.00993 0.00100 0.01886 -0.89973 -0.15545 0.40783
-158.400 0.01878 0.00286 0.03470 0.00974 0.00148 0.01799 -0.84785 0.43465 0.30370
-154.800 0.02087 0.00934 0.03240 0.01082 0.00484 0.01680 -0.55244 0.83092 0.06615
-151.200 0.02413 0.01891 0.02935 0.01251 0.00981 0.01522 -0.21628 0.95919 -0.18212
-147.600 0.02686 0.02813 0.02559 0.01393 0.01459 0.01327 0.04723 0.92096 -0.38678
-144.000 0.02761 0.03381 0.02141 0.01432 0.01753 0.01110 0.22441 0.80272 -0.55253
-140.400 0.02570 0.03408 0.01732 0.01333 0.01767 0.00898 0.32609 0.63853 -0.69710
-136.800 0.02148 0.02902 0.01395 0.01114 0.01505 0.00723 0.35073 0.42930 -0.83228
-133.200 0.01614 0.02042 0.01187 0.00837 0.01059 0.00615 0.26484 0.16206 -0.95058
-129.600 0.01125 0.01110 0.01139 0.00583 0.00576 0.00591 -0.01305 -0.14830 -0.98886
-126.000 0.00814 0.00383 0.01245 0.00422 0.00199 0.00645 -0.52923 -0.32836 -0.78236
-122.400 0.00744 0.00036 0.01452 0.00386 0.00018 0.00753 -0.95209 -0.06498 -0.29883
-118.800 0.00885 0.00090 0.01680 0.00459 0.00047 0.00871 -0.89812 0.43595 0.05778
-115.200 0.01135 0.00429 0.01841 0.00589 0.00222 0.00955 -0.62206 0.77096 0.13658
-111.600 0.01365 0.00857 0.01874 0.00708 0.00444 0.00971 -0.37217 0.92447 0.08268
-108.000 0.01475 0.01189 0.01761 0.00765 0.00617 0.00913 -0.19387 0.98095 -0.01191
-104.400 0.01433 0.01321 0.01545 0.00743 0.00685 0.00801 -0.07814 0.98977 -0.11935
-100.800 0.01287 0.01262 0.01313 0.00667 0.00654 0.00681 -0.01966 0.97230 -0.23289
-97.200 0.01137 0.01108 0.01166 0.00589 0.00575 0.00604 -0.02523 0.94005 -0.34010
-93.600 0.01087 0.00986 0.01187 0.00563 0.00511 0.00616 -0.09240 0.90858 -0.40736
-90.000 0.01196 0.00984 0.01409 0.00620 0.00510 0.00731 -0.17770 0.89452 -0.41019
-86.400 0.01455 0.01109 0.01801 0.00754 0.00575 0.00934 -0.23763 0.89632 -0.37435
-82.800 0.01792 0.01300 0.02284 0.00929 0.00674 0.01184 -0.27472 0.90244 -0.33187
-79.200 0.02120 0.01472 0.02769 0.01099 0.00763 0.01436 -0.30581 0.90799 -0.28642
-75.600 0.02397 0.01596 0.03199 0.01243 0.00827 0.01659 -0.33438 0.91478 -0.22664
-72.000 0.02663 0.01742 0.03585 0.01381 0.00903 0.01859 -0.34599 0.92709 -0.14421
-68.400 0.03039 0.02076 0.04002 0.01576 0.01076 0.02075 -0.31691 0.94708 -0.05105
-64.800 0.03673 0.02788 0.04559 0.01905 0.01445 0.02364 -0.24111 0.97033 0.01817
-61.200 0.04650 0.03973 0.05326 0.02411 0.02060 0.02762 -0.14557 0.98865 0.03711
-57.600 0.05904 0.05529 0.06279 0.03061 0.02867 0.03256 -0.06357 0.99792 0.01051
-54.000 0.07197 0.07121 0.07273 0.03732 0.03692 0.03771 -0.01057 0.99904 -0.04261
-50.400 0.08182 0.08271 0.08094 0.04242 0.04288 0.04197 0.01080 0.99415 -0.10751
-46.800 0.08580 0.08566 0.08594 0.04449 0.04442 0.04456 -0.00160 0.98455 -0.17511
-43.200 0.08412 0.07947 0.08877 0.04362 0.04121 0.04603 -0.05526 0.97102 -0.23254
-39.600 0.08217 0.06958 0.09476 0.04261 0.03608 0.04913 -0.15325 0.95688 -0.24675
-36.000 0.09149 0.06861 0.11438 0.04744 0.03557 0.05931 -0.25014 0.95246 -0.17392
-32.400 0.12868 0.09507 0.16228 0.06672 0.04929 0.08414 -0.26114 0.96390 -0.05208
-28.800 0.21194 0.16950 0.25438 0.10989 0.08789 0.13189 -0.20023 0.97940 0.02600
-25.200 0.35596 0.30861 0.40330 0.18456 0.16001 0.20911 -0.13300 0.98987 0.04975
-21.600 0.56611 0.51902 0.61320 0.29352 0.26911 0.31794 -0.08318 0.99542 0.04710
-18.000 0.83410 0.79246 0.87574 0.43247 0.41088 0.45407 -0.04993 0.99810 0.03600
-14.400 1.13652 1.10433 1.16871 0.58928 0.57259 0.60596 -0.02832 0.99931 0.02394
-10.800 1.43734 1.41648 1.45820 0.74525 0.73443 0.75606 -0.01451 0.99980 0.01366
-7.200 1.69427 1.68404 1.70450 0.87847 0.87316 0.88377 -0.00604 0.99996 0.00610
-3.600 1.86750 1.86479 1.87021 0.96828 0.96688 0.96969 -0.00145 1.00000 0.00153
0.000 1.92867 1.92867 1.92867 1.00000 1.00000 1.00000 0.00000 1.00000 -0.00000
3.600 1.86750 1.86479 1.87021 0.96828 0.96688 0.96969 -0.00145 1.00000 0.00153
7.200 1.69427 1.68404 1.70450 0.87847 0.87316 0.88377 -0.00604 0.99996 0.00610
10.800 1.43734 1.41648 1.45820 0.74525 0.73443 0.75606 -0.01451 0.99980 0.01366
14.400 1.13652 1.10433 1.16871 0.58928 0.57259 0.60596 -0.02832 0.99931 0.02394
18.000 0.83410 0.79246 0.87574 0.43247 0.41088 0.45407 -0.04993 0.99810 0.03600
21.600 0.56611 0.51902 0.61320 0.29352 0.26911 0.31794 -0.08318 0.99542 0.04710
25.200 0.35596 0.30861 0.40330 0.18456 0.16001 0.20911 -0.13300 0.98987 0.04975
28.800 0.21194 0.16950 0.25438 0.10989 0.08789 0.13189 -0.20023 0.97940 0.02600
32.400 0.12868 0.09507 0.16228 0.06672 0.04929 0.08414 -0.26114 0.96390 -0.05208
36.000 0.09149 0.06861 0.11438 0.04744 0.03557 0.05931 -0.25014 0.95246 -0.17392
39.600 0.08217 0.06958 0.09476 0.04261 0.03608 0.04913 -0.15325 0.95688 -0.24675
43.200 0.08412 0.07947 0.08877 0.04362 0.04121 0.04603 -0.05526 0.97102 -0.23254
46.800 0.08580 0.08566 0.08594 0.04449 0.04442 0.04456 -0.00160 0.98455 -0.17511
50.400 0.08182 0.08271 0.08094 0.04242 0.04288 0.04197 0.01080 0.99415 -0.10751
54.000 0.07197 0.07121 0.07273 0.03732 0.03692 0.03771 -0.01057 0.99904 -0.04261
57.600 0.05904 0.05529 0.06279 0.03061 0.02867 0.03256 -0.06357 0.99792 0.01051
61.200 0.04650 0.03973 0.05326 0.02411 0.02060 0.02762 -0.14557 0.98865 0.03711
64.800 0.03673 0.02788 0.04559 0.01905 0.01445 0.02364 -0.24111 0.97033 0.01817
68.400 0.03039 0.02076 0.04002 0.01576 0.01076 0.02075 -0.31691 0.94708 -0.05105
72.000 0.02663 0.01742 0.03585 0.01381 0.00903 0.01859 -0.34599 0.92709 -0.14421
75.600 0.02397 0.01596 0.03199 0.01243 0.00827 0.01659 -0.33438 0.91478 -0.22664
79.200 0.02120 0.01472 0.02769 0.01099 0.00763 0.01436 -0.30581 0.90799 -0.28642
82.800 0.01792 0.01300 0.02284 0.00929 0.00674 0.01184 -0.27472 0.90244 -0.33187
86.400 0.01455 0.01109 0.01801 0.00754 0.00575 0.00934 -0.23763 0.89632 -0.37435
90.000 0.01196 0.00984 0.01409 0.00620 0.00510 0.00731 -0.17770 0.89452 -0.41019
93.600 0.01087 0.00986 0.01187 0.00563 0.00511 0.00616 -0.09240 0.90858 -0.40736
97.200 0.01137 0.01108 0.01166 0.00589 0.00575 0.00604 -0.02523 0.94005 -0.34010
100.800 0.01287 0.01262 0.01313 0.00667 0.00654 0.00681 -0.01966 0.97230 -0.23289
104.400 0.01433 0.01321 0.01545 0.00743 0.00685 0.00801 -0.07814 0.98977 -0.11935
108.000 0.01475 0.01189 0.01761 0.00765 0.00617 0.00913 -0.19387 0.98095 -0.01191
111.600 0.01365 0.00857 0.01874 0.00708 0.00444 0.00971 -0.37217 0.92447 0.08268
115.200 0.01135 0.00429 0.01841 0.00589 0.00222 0.00955 -0.62206 0.77096 0.13658
118.800 0.00885 0.00090 0.01680 0.00459 0.00047 0.00871 -0.89812 0.43595 0.05778
122.400 0.00744 0.00036 0.01452 0.00386 0.00018 0.00753 -0.95209 -0.06498 -0.29883
126.000 0.00814 0.00383 0.01245 0.00422 0.00199 0.00645 -0.52923 -0.32836 -0.78236
129.600 0.01125 0.01110 0.01139 0.00583 0.00576 0.00591 -0.01305 -0.14830 -0.98886
133.200 0.01614 0.02042 0.01187 0.00837 0.01059 0.00615 0.26484 0.16206 -0.95058
136.800 0.02148 0.02902 0.01395 0.01114 0.01505 0.00723 0.35073 0.42930 -0.83228
140.400 0.02570 0.03408 0.01732 0.01333 0.01767 0.00898 0.32609 0.63853 -0.69710
144.000 0.02761 0.03381 0.02141 0.01432 0.01753 0.01110 0.22441 0.80272 -0.55253
147.600 0.02686 0.02813 0.02559 0.01393 0.01459 0.01327 0.04723 0.92096 -0.38678
151.200 0.02413 0.01891 0.02935 0.01251 0.00981 0.01522 -0.21628 0.95919 -0.18212
154.800 0.02087 0.00934 0.03240 0.01082 0.00484 0.01680 -0.55244 0.83092 0.06615
158.400 0.01878 0.00286 0.03470 0.00974 0.00148 0.01799 -0.84785 0.43465 0.30370
162.000 0.01914 0.00192 0.03637 0.00993 0.00100 0.01886 -0.89973 -0.15545 0.40783
165.600 0.02233 0.00710 0.03757 0.01158 0.00368 0.01948 -0.68230 -0.64708 0.34021
169.200 0.02764 0.01680 0.03847 0.01433 0.00871 0.01994 -0.39194 -0.89695 0.20462
172.800 0.03348 0.02783 0.03912 0.01736 0.01443 0.02028 -0.16863 -0.98155 0.09013
176.400 0.03799 0.03644 0.03954 0.01970 0.01889 0.02050 -0.04077 -0.99893 0.02203
180.000 0.03968 0.03968 0.03968 0.02057 0.02057 0.02057 0.00000 -1.00000 -0.00000

yo solo quiero usar los valores desde el renglón que dice # radius al # mu_t



Espero que alguien me pueda ayudar

nombre de archivo texto: importacion_datos_jose7.txt
valido solo para el archivo específicamente del foro.
ambos archivos deben de estar en la misma carpeta para que funcione




Saludos.
JOSE JEREMÍAS CABALLERO
Asesorías en Matlab
programador en matlab
Servicios de programación matlab
[email protected]

http://matlabcaballero.blogspot.com

http://www.lawebdelprogramador.com/foros/Matlab/1371532-FORMA_DE_APRENDER_MATLAB.html

• importacion_datos_jose7.zip(400,0 B)
• importacion_datos_jose7.zip(2,7 KB)

hola, gracias por contestar pero no entiendo aún que hiciste, intenté abrir los datos adjuntos, uno trae el archivo txt y en el otro viene un programa .p el cual no me deja ver su contenido

solo ejecútalo.