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作者 nosql 在 PTT [ MATLAB ] 看板的留言(推文), 共96則
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2F推:是分號還是逗號?06/10 11:46
2F推:跟前面kunlin999的問題有點像06/07 04:53
3F推:如果去改axes的話 他也可以顯示06/05 03:29
4F→:我有用過讓ylabel顯示 \bar P_b <--這種06/05 03:29
1F推:importdata 然後更換delimiter05/29 17:54
2F→:ex: A=importdata('file.txt', ':')05/29 17:54
3F→:textread也是個做法05/29 17:56
4F→:textread('file.txt','delimiter',':')05/29 17:56
6F推:因為有在洽特看到 (炸05/29 18:01
7F推:我textread的example打錯惹05/29 18:04
8F→:A=textread('file.txt','','delimiter',':') <--05/29 18:04
9F→:這樣才對05/29 18:04
10F→:說到split, javascript的split是可以用常規表示式的05/29 18:06
11F→:matlab後面的版本也有提供regexp05/29 18:06
12F推:你喜歡的話也可以比較看看regexp和上面兩個的處理速度哪個快05/29 18:11
13F→:(期待別人實驗中)05/29 18:11
14F推:不過用split的話會多個str2num的程序 所以應該是比較慢的05/29 18:15
1F推:隨便亂猜 數值積分應該比較難變成多核心, 頂多在算同個時間.05/25 16:16
1F推:隨便猜猜不確定 或許得到物件的handle就可以處理05/16 22:09
4F推:看無05/02 01:12
5F→:如果只是要切八塊就乾脆A1=A(1:8:end);A2=A(2:8:end); ...05/02 01:13
6F推:我剛的寫法是抽(1,9,...) (2,10,...)05/02 01:17
7F→:如果是要另一種分8塊 可以先用length取得長度05/02 01:18
8F→:然後BC0 = A(1:fix(length(A)/8));05/02 01:19
2F→:超過一天的rinex檔案真的大的好可怕OwQ05/01 21:38
3F→:可是裡面又好多garbage...Orz05/01 21:38
4F→:文章內容有錯 是50秒05/01 21:39
5F→:我目前用逐行掃的寫法需要200秒 效能硬是慢Orz05/01 21:40
5F推:way 1.先把所有數值手工列出來 列出方程式再說04/30 21:34
6F→:way 2. help symbolic toolbox04/30 21:34
11F→:樓上偏好的寫法沒有先配置記憶體_A_ 會很慢喔04/30 21:35