SMA (Single Moving Average) and Standard Deviation Post: 303003085

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Top Forums Shell Programming and Scripting SMA (Single Moving Average) and Standard Deviation Post 303003085 by RudiC on Thursday 7th of September 2017 12:10:32 PM

09-07-2017

Registered User

Try

Code:

awk -v points=5 '

NR == 1 {next
        }

        {a[(NR-1) % points] = $2
         if ((NR-1)>=points)    {total_a = 0
                                 for (i = 0; i < points; ++i)   {total_a = total_a + a[i]
#                                                                print i, a[i], total_a, total_a / 5 
                                                                }
                                 AVG = total_a/points
                                 ERR = 0
                                 for (i = 0; i < points; ++i)   {ERR += (AVG - a[i]) * (AVG - a[i])
                                                                }
                                 print $1, $2, AVG, sqrt(ERR/points)
                                }  
        }
' OFS="	" file1
5	10.1	10.096	0.0422374
6	10.06	10.09	0.0447214
7	10.15	10.092	0.0470744
8	9.91	10.07	0.085557
9	9.99	10.042	0.0842378
10	9.72	9.966	0.146233
11	9.75	9.904	0.158442
12	9.57	9.788	0.147838
13	9.62	9.73	0.145465
14	9.97	9.726	0.138362
15	9.71	9.724	0.138506
16	9.77	9.728	0.139485
17	9.88	9.79	0.12345
18	9.71	9.808	0.102059
19	9.75	9.764	0.062482
20	9.53	9.728	0.113912
21	9.46	9.666	0.152132
22	9.38	9.566	0.142632
23	9.63	9.55	0.12946
24	9.67	9.534	0.106696
25	9.92	9.612	0.187339
26	10.04	9.728	0.231638

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LEARN ABOUT DEBIAN

grdinfo

GRDINFO(l)																GRDINFO(l)

NAME

       grdinfo - Get information about the contents of a 2-D grd file

SYNOPSIS

       grdinfo grdfiles [ -C ] [ -D ] [ -F ] [ -L1 ] [ -L2 ] [ -M ] [ -V ]

DESCRIPTION

       grdinfo reads a 2-D binary grd file and reports various statistics for the (x,y,z) data in the grdfile. The output information contains the
       minimum/maximum values for x, y, and z, where the min/max of z occur, the x- and y-increments, and  the	number	of  x  and  y  nodes,  and
       [optionally] the mean, standard deviation, and/or the median, L1 scale of z, and number of nodes set to NaN.

       grdfile
	      The name of one or several 2-D grd files.

OPTIONS

       No space between the option flag and the associated arguments.

       -C     Formats  the report using tab-separated fields on a single line. The output is w e s n z0 z1 dx dy nx ny [ x0 y0 x1 y1 ] [ med scale
	      ] [ mean std rms] [n_nan].  The data in brackets are output only if the corresponding options -M, -L1, -L2, and -M are used, respec-
	      tively.

       -D     Report grid domain and x/y-increments using dd:mm:ss[.fff] notation [Default is decimal].  Does not apply to the -C option.

       -F     Report grid domain and x/y-increments world mapping format [Default is generic].	Does not apply to the -C option.

       -L1    Report median and L1 scale of z (L1 scale = 1.4826 * Median Absolute Deviation (MAD)).

       -L2    Report mean and standard deviation of z.

       -M     Find and report the location of min/max z-values, and count and report the number of nodes set to NaN, if any.

       -V     Selects verbose mode, which will send progress reports to stderr [Default runs "silently"].

EXAMPLES

       To obtain all the information about the data set in file hawaii_topo.grd, try

       grdinfo -L1 -L2 -M hawaii_topo.grd

SEE ALSO

       gmt(1gmt), grd2cpt(1gmt), grd2xyz(1gmt), grdedit(1gmt)

								    1 Jan 2004								GRDINFO(l)

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