how to change decimal point place

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Mohamed Turkmani
Mohamed Turkmani 2022-11-30
编辑： Mohamed Turkmani 2022-12-8
hi, i have audio numbers that are printed as :
3.261505126953125 3.227813720703125
3.267242431640625 3.217407226562500
3.260345458984375 3.212432861328125
3.239776611328125 3.209808349609375
3.209960937500000 3.205841064453125
3.177581787109375 3.198425292968750
3.147857666015625 3.186126708984375
3.122009277343750 3.170928955078125 etc.
i want to change the decimal point for example for the first number to be 3,261,505,126 and the second number to be :3,227,813,720 without the decimal point and the other remaining numbers
my code that prints the values is:
[z,Fs] = audioread("mixed sound.wav");
z = z+3;
z;
  2 个评论
Dyuman Joshi
Dyuman Joshi 2022-11-30
Ran in:
The ability to automatically format a number to display it with the commas inserted at the right places for easy reading is not available in MATLAB.
However, you can do it if you are okay with a string output
z=3.261505126953125;
zstr=addComma(z*1e15)
zstr = '3,261,505,126,953,125'
%function taken from the same thread linked above
function numOut = addComma(numIn)
jf=java.text.DecimalFormat; % comma for thousands, three decimal places
numOut= char(jf.format(numIn)); % omit "char" if you want a string out
end
Mohamed Turkmani
Mohamed Turkmani 2022-12-8
thanks for the responce , what about just getting rid of the decimal point for example to get 3261505126953125
also if i want to reduce the other remaining numbers such as getting 3261505 only

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回答（1 个）

David Hill
David Hill 2022-11-30
Ran in:
I am not sure how your numbers are stored. Are they stored as character arrays or doubles?
a='3.261505126953125';
b=[a(1),',',a(3:5),',',a(6:8),',',a(9:11)]
b = '3,261,505,126'
  1 个评论
Mohamed Turkmani
Mohamed Turkmani 2022-12-8
编辑：Mohamed Turkmani 2022-12-8
as doubles i think , what about just getting rid of the decimal point for example to get 3261505126953125
also if i want to reduce the other remaining numbers such as getting 3261505 only

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