use sprintf while selecting exponential power

Hi, I am using sprintf to grab a vallue and print in a legend. They all vary with power, but i want them on the same scale. IE:

legend({sprintf('Sample A %.3E',P1),sprintf('Sample B %0.3E',P2})

Where P1 is 2.331E6 and P2 is 3.215E5, resulting in

Sample A 2.331E6 and Sample b 3.215E5

I would like them to (note exponent)

Sample A 2.331E6 and Sample b 0.321E6

Answer 1

[Star Strider]

I wrote a utility function a while back to do just that:

rfx = @(x,xpnt) [sign(x).*10.^(log10(abs(x))-xpnt), xpnt];              % Anonymous Function Creating Reformatted Number
P1 = 2.331E6;
P2 = 3.215E5;
xpnt = +6;
Out1 = sprintf('Sample A %.7fE%+d',  rfx(P1,xpnt))
Out2 = sprintf('Sample A %.7fE%+d',  rfx(P2,xpnt))

producing:

Out1 =
    'Sample A 2.3310000E+6'

Out2 =
    'Sample A 0.3215000E+6'

.

[Walter Williams]

You are doing good things. Thank you.

[Star Strider]

I very much appreciate your compliment!

As always, my pleasure!