How to find the sliding RMS of a signal by sliding a window one unit at a time along a signal?

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Win 2014-3-13

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https://ww2.mathworks.cn/matlabcentral/answers/121370-how-to-find-the-sliding-rms-of-a-signal-by-sliding-a-window-one-unit-at-a-time-along-a-signal

I have codes to calculate the RMS for each window. But one window starts at the end of the previous window. I am new to MATLAB and I am struggling to modify the for loop such that the window slides along the time axis.

The data is in the form of an excel document with 2 columns that I read using the first few lines in my code.

if true
  clear all; 
Array=csvread('Pencilbreak-63dB.csv');
col1 = Array(:, 1); 
col2 = Array(:, 2); 
window = 100;
for i=1:window:length(col1)
  RMS(i:i+window-1) = (sum(col2(i:i+window-1).^2)/window)^0.5;
end
plot(col1,RMS)
end