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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /569/CH3/EX3.32 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '569/CH3/EX3.32')
| -rwxr-xr-x | 569/CH3/EX3.32/3_32.sci | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/569/CH3/EX3.32/3_32.sci b/569/CH3/EX3.32/3_32.sci new file mode 100755 index 000000000..01e0f6ae3 --- /dev/null +++ b/569/CH3/EX3.32/3_32.sci @@ -0,0 +1,16 @@ +//calculate standard deviation
+
+clc;
+x=[.9 2.3 3.3 4.5 5.7 6.7];
+y=[1.1 1.6 2.6 3.2 4 5];
+n=6;
+a=((n*sum(x.*y)-(sum(x)*sum(y)))/((sum(x^2)*n)-sum(x)^2));
+b=((sum(y)*sum(x^2)-(sum(x)*sum(x.*y)))/((sum(x^2)*n)-sum(x)^2));
+
+sdy=sqrt((1/n)*sum((a*x+b-y)^2));
+sdx=sdy/a;
+
+sa=sqrt(n/(n*sum(x^2)-sum(x)^2))*sdy;
+sb=sqrt(sum(x^2)/(n*sum(x^2)-sum(x)^2))*sdy;
+disp(sa,'s_a');
+disp(sb,'s_b');
\ No newline at end of file |