how to change decimal point place

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;

[Dyuman Joshi]

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]

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

Answer 1

[David Hill]

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'

[Mohamed Turkmani]

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