How to fill a matrix of known size with data from a row vector

1 回表示 (過去 30 日間)
Nicolò Monaco
Nicolò Monaco 2022 年 2 月 4 日
編集済み: Fangjun Jiang 2022 年 2 月 4 日
I have a row vector ( dimension: 1x171072000) representing per second data for 66 months.
I want to build a matrix with dimension 2592000x66, so that each colums contains data for each month. For example the first column of the matrix must contains vector(1:2592000) and the second column vector(2592001:5184000.
How can I implement this? thank you in advance

回答 (2 件)

Fangjun Jiang
Fangjun Jiang 2022 年 2 月 4 日
編集済み: Fangjun Jiang 2022 年 2 月 4 日
reshape()

Voss
Voss 2022 年 2 月 4 日
A = randn(1,171072000)
A = 1×171072000
0.3875 -1.9867 -0.2379 0.1738 0.0990 1.0573 -0.8788 1.4036 -3.6949 0.1900 -0.0567 1.6167 1.6784 -0.1925 -0.4005 -0.3892 0.8510 -0.4445 0.4273 -0.8284 0.8122 -1.1188 1.5828 0.0162 -1.6376 1.4737 0.7082 0.6214 -0.6716 0.6999
B = reshape(A,[],66)
B = 2592000×66
0.3875 -1.3692 0.9710 1.1184 -0.1400 0.4886 1.8350 -0.5145 -2.4965 -0.0625 3.0628 0.4617 -0.0233 1.3546 -2.1346 0.5320 -1.7412 0.8743 -0.7809 0.1577 0.2596 -1.1410 0.5543 0.3521 -1.3561 2.9233 0.1950 -0.6069 -0.9593 0.6087 -1.9867 0.2935 0.5990 1.3330 -0.2093 -0.0355 0.8335 -0.0923 0.9512 0.2460 0.1450 -1.4380 -0.7361 0.3305 -0.0382 -0.8544 0.0036 -0.3293 0.6408 0.1290 0.1475 -0.3567 -0.8266 -0.7657 0.3540 -0.8802 0.3913 1.2270 0.0518 -0.8527 -0.2379 -0.1303 0.6242 -0.9432 -0.2440 -0.4866 0.7084 0.6374 -0.0030 -0.4931 -1.2137 1.7080 0.3712 -0.3124 0.2305 1.2967 -0.2044 -0.8888 -0.6738 2.5090 0.2927 -0.4236 1.8914 -0.6045 -0.9274 -0.9079 2.4966 1.5355 -0.4163 0.7406 0.1738 1.1187 -0.9046 -0.9690 0.7033 0.6652 -1.6156 -0.5211 0.1894 -0.4359 -1.0656 1.5449 -2.1343 -0.2652 0.3721 -0.3095 0.4569 0.0577 0.2565 -0.3711 0.1692 -0.8408 -0.1927 -2.0263 -0.0819 0.1040 -1.0257 0.2481 0.9915 -1.6916 0.0990 -1.1458 1.3158 -0.5638 1.6851 -2.1849 -0.7489 0.0538 0.6014 0.3645 1.3252 0.5119 -0.5372 -1.1119 0.3421 -0.4771 0.3793 0.4533 -0.6377 1.6360 -0.5688 -0.7498 -1.3135 -2.3985 -0.5606 -1.7849 -0.3119 -0.3053 -0.0892 -0.5111 1.0573 1.6427 -0.6530 0.2691 1.2518 0.5644 0.0371 1.1183 1.7318 2.1239 0.0241 0.6996 0.5446 -0.6511 -1.6128 -0.2210 -1.7022 0.2040 0.8570 -1.8349 1.6881 -0.0667 0.5122 -2.2710 -0.2053 1.7887 -2.5509 -0.5626 -1.1287 -0.2476 -0.8788 -0.0270 -1.3102 1.8098 1.8844 -0.9971 -0.2106 2.1487 0.4754 -0.4267 -0.8447 0.8141 0.9215 0.1069 0.1939 -0.0554 1.1703 -1.3961 -0.8005 0.4885 -0.5591 -0.1350 0.1337 0.4191 0.8678 0.3670 0.9646 -0.6997 0.0361 -0.8307 1.4036 -0.5129 1.2829 -0.6057 -1.0464 -0.5065 -1.4943 1.2725 -0.9102 -0.5495 -1.4496 0.0917 -0.9924 -0.7929 -0.7865 -0.0007 -0.7678 -0.7087 -0.1772 -1.3529 -1.7970 -0.0122 1.8184 -0.1958 -1.3763 -0.1554 0.0724 -3.0187 -1.1723 -1.3708 -3.6949 0.5822 0.0433 0.6614 0.5026 -0.7977 -0.3218 1.4018 1.0860 -1.1523 0.9896 -0.0124 -1.0040 -2.7534 0.2100 0.8065 0.7002 1.5609 0.0379 -0.2185 0.0230 0.5448 0.9784 0.8731 0.5252 -1.4438 -0.0815 0.1840 1.0748 -0.4470 0.1900 0.8321 -0.7244 0.9139 0.6005 -0.4086 -0.1653 -0.6962 -1.5189 -1.8276 1.1408 0.4139 0.1925 1.3744 0.3097 0.1423 -1.8553 -0.2173 -0.8898 -1.2154 -0.1432 0.0743 2.3276 0.3756 -0.3507 0.8325 -0.6457 1.9939 -1.2789 -0.4749

カテゴリ

Help Center および File ExchangeResizing and Reshaping Matrices についてさらに検索

製品


リリース

R2020b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by