Looping these equations over multiple workspace variable names
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Lewis Holden
am 6 Feb. 2017
Bearbeitet: Stephen23
am 6 Feb. 2017
I have this code which calculates the mean value of all wind speeds in the 99th percentile. The trouble is I have wind data for 1949-1999 in the workspace (named nineteen_49 through to 99) I am struggling to make a loop which calls the name of the new variable each time and also creates new variables in place of x, y and j - can anybody help?:
% calculate value of 99th percentile value for wind spd
x = prctile(nineteen_49(:,6),99)
% create logical matrix that corresponsds to all wind speed values of great
% than 99th percentile (collecton o 0's and 1's where 1 denotes the
% location of each value great > x
y = nineteen_49(:,6) > x
% create a vector j that is the 6th column of 1949 (ie just speeds)
j = nineteen_49(:,6)
% calculate the mean of 99th percentile values
mean_99th_percentile_1949 = mean(j(y))
% calculate the frequency of events over
1 Kommentar
Akzeptierte Antwort
Geoff Hayes
am 6 Feb. 2017
Lewis - just use an numeric (or cell) array to store all your wind data for each year instead of having all of this data spread about many variables which would require you to do the above. See Stephen's answer at https://www.mathworks.com/matlabcentral/answers/105936-how-to-make-dynamic-variable-names-a1-a2-an-with-for-loop-using-eval-num2str which describes why it isn't a good idea to create dynamically named variables in MATLAB.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Creating and Concatenating Matrices finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!