How to extract numbers in a string?

2 ビュー (過去 30 日間)
Ali Almakhmari
Ali Almakhmari 2021 年 11 月 17 日
回答済み: Image Analyst 2021 年 11 月 17 日
So I have a huge table (672 elements) and each cell has a string that involves a number and some letters at the end with a variable space between them, but I want to remove the letters and convert the string number to an actual number. For example:
cell 1: "1.32e8 Cis"
cell 2: "8.47e-2 tOE"
cell 3: "4.55e8 pov"
And so on....for 672 cells.
What I want is to convert this to
1.32e8
8.47e-2
4.55e8
  1 件のコメント
Image Analyst
Image Analyst 2021 年 11 月 17 日
Please be clear.
Is your data is in a table variable, or a cell array variable?
There might be different ways to do it depending on what type of variable it is. Can you attach it in a .mat file?

サインインしてコメントする。

採用された回答

Image Analyst
Image Analyst 2021 年 11 月 17 日
For a cell array, try this:
ca = {"1.32e8 Cis"
"8.47e-2 tOE"
"4.55e8 pov"}
ca = 3×1 cell array
{["1.32e8 Cis" ]} {["8.47e-2 tOE"]} {["4.55e8 pov" ]}
for k = 1 : numel(ca)
ca{k} = sscanf(ca{k}, '%f');
end
ca % Show again in the command window
ca = 3×1 cell array
{[132000000]} {[ 0.0847]} {[455000000]}

その他の回答 (0 件)

カテゴリ

Help Center および File ExchangeData Type Conversion についてさらに検索

タグ

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