Info

此问题已关闭。 请重新打开它进行编辑或回答。

Counting zeros gives varying values, how do I change this?

1 次查看（过去 30 天）
Franchesca
Franchesca 2014-5-13
关闭： MATLAB Answer Bot 2021-8-20
This is my code:
%% Import data
numfiles = 54; % number of excel files mydata=cell(numfiles,1); % defining size of mydata d=dir('Trial*.csv');
for i=7:length(mydata) % loop to import mutliple excel files
try
mydata{i} = xlsread(d(i).name); % import files into mydata
catch
disp([d(i).name 'read failed'])
end
myfilename = sprintf('Trial%02d.csv', i); % define file name
mydata{i} = xlsread(myfilename); % import files into mydata
%% Perfrom Calculations
%%Define variables
a= 9.81; % acceleration
fps = 250; % frames per second
%%Calculate Jump Height
no_of_zeros(i,1) = size(mydata{i,1},1) - nnz(mydata{i,1}(:,5)); %number of zeros
no_of_frames = (no_of_zeros(i,1)/4); % number of frames
time = ((no_of_frames/fps)/2); % time up
jumph(i,1)=((a*(time*time))/2); % jump height
Looking at the calculate jump height, it calculates correctly for the first 2 trials but then gives large over estimations for nealry all the other trails. It was a while ago I wrote this could someone clarify this line of code for me as this is where the trouble lies, I'm unsure with the ,1.
no_of_zeros(i,1) = size(mydata{i,1},1) - nnz(mydata{i,1}(:,5)); %number of zeros

此问题已关闭。

回答（0 个）

此问题已关闭。

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by