Extract the first two digits from a cell number

Question

PEDRO ALEXANDRE Fernandes 2022-3-24

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1679899-extract-the-first-two-digits-from-a-cell-number

评论： Voss 2022-3-24

采纳的回答： Voss

在 MATLAB Online 中打开

Hello!

I have a cell array, and i need to extract the first two digits.

946210.887239541	 5834.79659950033	2331.48462622471	1082.03333024461	555.948997161636	386.857494592061		
163514355.623239	 86011.7585899832	33427.7515152879	15281.0376072647	7801.56366753683	4742.13225247842	

example:

94 58 23 ..

16 86 33 ..

i try this, cellfun(@(v)v(2),""+vnc)-'0'; but it return the 2 digit..

Any ideia?

thanks

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Answer 1

Voss 2022-3-24

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1679899-extract-the-first-two-digits-from-a-cell-number#answer_926194

编辑：Voss 2022-3-24

在 MATLAB Online 中打开

vnc = { ...
    946210.887239541	 5834.79659950033	2331.48462622471	1082.03333024461	555.948997161636	386.857494592061		
    163514355.623239	 86011.7585899832	33427.7515152879	15281.0376072647	7801.56366753683	4742.13225247842	};
% maybe this is what you had in mind:
cellfun(@(v)v(1:2)-'0',""+vnc,'UniformOutput',false)
ans = 2×6 cell array
    {[9 4]}    {[5 8]}    {[2 3]}    {[1 0]}    {[5 5]}    {[3 8]}
    {[1 6]}    {[8 6]}    {[3 3]}    {[1 5]}    {[7 8]}    {[4 7]}
% or maybe this:
cellfun(@(v)v(1:2),""+vnc,'UniformOutput',false)
ans = 2×6 cell array
    {'94'}    {'58'}    {'23'}    {'10'}    {'55'}    {'38'}
    {'16'}    {'86'}    {'33'}    {'15'}    {'78'}    {'47'}
% alternatively, returning a matrix of 2-digit numbers:
vnc_mat = cell2mat(vnc);
floor(vnc_mat.*10.^(1-floor(log10(vnc_mat))))
ans = 2×6
    94    58    23    10    55    38
    16    86    33    15    78    47