Separating data to 3 different groups according to specific range of number in a variable

2 次查看（过去 30 天）

Yat Chi 2024-2-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2085208-separating-data-to-3-different-groups-according-to-specific-range-of-number-in-a-variable

评论： Dyuman Joshi 2024-2-22

SNR_GPS.mat

Hello, I have a 32x1875 sized variable named SNR_GPS, each rows represent the number of signals to noise ratio (SNR) of each satellite in the 1875 seconds. The first thing I would like is to calculate the mean SNR of each satellite which I successfully done do. But when I would like to arrange the satellites into 3 separate variables according to the requirements ( First group: SNR < 25, Second group: SNR 25-35, Third group: SNR>35 ), my old code failed to compile that. Is there any method to complete that? Thanks for your help.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Dyuman Joshi 2024-2-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2085208-separating-data-to-3-different-groups-according-to-specific-range-of-number-in-a-variable#answer_1413993

在 MATLAB Online 中打开

SNR_GPS.mat

Note - NaN values are not included in the grouping

load('SNR_GPS.mat')
data = SNR_GPS(~isnan(SNR_GPS))
data = 20625x1
     0
    22
    23
    39
     0
    31
    40
    41
     0
    32
k = discretize(data, [-Inf 25 36 Inf])
k = 20625x1
     1
     1
     1
     3
     1
     2
     3
     3
     1
     2
out = accumarray(k, data, [], @(x) {x})
out = 3x1 cell array
    {7037x1 double}
    {5184x1 double}
    {8404x1 double}
%checking the data
z = out{2}
z = 5184x1
    31
    32
    32
    32
    32
    30
    34
    30
    34
    30
min(z)
ans = 25
max(z)
ans = 35

8 个评论
显示 6更早的评论隐藏 6更早的评论

Yat Chi 2024-2-22

Nevermind it worked again. Originally i used the rmmissing but still got the problem, maybe there is conflict in matlab code. Sorry for bothering you long and thanks very much for your help today!