Finding X value for a corresponding Y value from contents of a table

19 ビュー (過去 30 日間)
Deepa Maheshvare
Deepa Maheshvare 2020 年 1 月 13 日
コメント済み: Walter Roberson 2020 年 1 月 14 日
I'd like to find values from the following table.
0 3.0000 1.0000 1.0000 1.0000 1.0000 1.0000
0.0010 3.0000 1.6532 1.1366 1.0207 1.0025 1.0005
0.0020 3.0000 1.9523 1.3355 1.0915 1.0206 1.0073
0.0030 3.0000 2.1198 1.5034 1.1848 1.0592 1.0289
0.0040 3.0000 2.2283 1.6362 1.2808 1.1137 1.0674
0.0050 3.0000 2.3049 1.7426 1.3723 1.1783 1.1201
0.0060 3.0000 2.3630 1.8301 1.4574 1.2484 1.1825
0.0070 3.0000 2.4097 1.9042 1.5363 1.3208 1.2508
0.0080 3.0000 2.4486 1.9686 1.6099 1.3935 1.3219
0.0090 3.0000 2.4818 2.0259 1.6788 1.4653 1.3937
0.0100 3.0000 2.5109 2.0775 1.7435 1.5355 1.4651
0.0110 3.0000 2.5371 2.1250 1.8047 1.6033 1.5348
0.0120 3.0000 2.5613 2.1691 1.8625 1.6685 1.6023
0.0130 3.0000 2.5835 2.2104 1.9173 1.7312 1.6675
0.0140 3.0000 2.6045 2.2492 1.9694 1.7911 1.7299
0.0150 3.0000 2.6240 2.2859 2.0189 1.8483 1.7898
0.0160 3.0000 2.6424 2.3205 2.0659 1.9030 1.8470
The column on th extreme left is independent quantity(say X) and the other columns contain multiple Y values observed over X. I'd like to find the value of X when Y = 1.5.
For instance, in the third column the value 1.5 doesn't occur. In such a case, I would like to interpolate. Any suggestion on how this can be done?
  3 件のコメント
Walter Roberson
Walter Roberson 2020 年 1 月 14 日
Raj comments to ananya,
irrelevant to question
I agree with Raj, this does appear to be talking about something else entirely.

サインインしてコメントする。

採用された回答

Raj
Raj 2020 年 1 月 13 日
You can use 'interp1' command.
For example, in case of third column you can use:
interp1(A(:,4), A(:,1),1.5)
which gives
ans =
0.002979749851102

その他の回答 (0 件)

製品


リリース

R2019b

Community Treasure Hunt

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

Start Hunting!

Translated by