Undefined function 'mtimes' for input arguments of type 'cell'.
3 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I am having some trouble with obtaining a calculation. I first used:
radians=0;
Rs=1.00021697;
dRs=250;
SeattleG=32.17546;
GNOG=32.12536;
VSFR=cos(radians)*((ATretreive{1,3} - (ATretreive{1,5}))/(2*Rs)); %Vertical readings-scale factor
VBR=((ATretreive{1,3} + ATretreive{1,5})/(2*VSFR))*1000000; %Vertical readings-bias
VRTemp=(((ATretreive{1,7} + (ATretreive{1,8}) + (ATretreive{1,9}) + (ATretreive{1,10}))/4) *100)-273; %Vertical readings-temp
HBR=((ATretreive{1,4} + ATretreive{1,6})/(2*VSFR))*1000000; %Horizontal readings-bias
rmdData=importdata('AccelQuery.mat')
SERIAL_NUMBER={rmdData.('SERIAL_NUMBER')}
BIA_COF_0={rmdData.('BIA_COF_0')}
BIA_COF_1={rmdData.('BIA_COF_1')}
BIA_COF_2={rmdData.('BIA_COF_2')}
BIA_COF_3={rmdData.('BIA_COF_3')}
BIA_COF_4={rmdData.('BIA_COF_4')}
SF_COF_0={rmdData.('SF_COF_0')}
SF_COF_1={rmdData.('SF_COF_1')}
SF_COF_2={rmdData.('SF_COF_2')}
SF_COF_3={rmdData.('SF_COF_3')}
SF_COF_4={rmdData.('SF_COF_4')}
mergetables=table(SERIAL_NUMBER,BIA_COF_0,BIA_COF_1,BIA_COF_2,BIA_COF_3...
,BIA_COF_4,SF_COF_0,SF_COF_1,SF_COF_2,SF_COF_3,SF_COF_4);
uitdata=uitable(uifigure,'Data',mergetables);
uitdata.ColumnName={'Accel S/N' ;'BIA_COF_0'; 'BIA_COF_1'; 'BIA_COF_2'; 'BIA_COF_3' ;'BIA_COF_4';...
'SF_COF_0'; 'SF_COF_1'; 'SF_COF_2' ;'SF_COF_3' ;'SF_COF_4'};
BIA0=mergetables{app.AccelSNEditField == mergetables{:,1},2};
BIA1=mergetables{app.AccelSNEditField == mergetables{:,1},3};
BIA2=mergetables{app.AccelSNEditField == mergetables{:,1},4};
BIA3=mergetables{app.AccelSNEditField == mergetables{:,1},5};
BIA4=mergetables{app.AccelSNEditField == mergetables{:,1},6};
SF0=mergetables{app.AccelSNEditField == mergetables{:,1},7};
SF1=mergetables{app.AccelSNEditField == mergetables{:,1},8};
SF2=mergetables{app.AccelSNEditField == mergetables{:,1},9};
SF3=mergetables{app.AccelSNEditField == mergetables{:,1},10};
SF4=mergetables{app.AccelSNEditField == mergetables{:,1},11};
CalcBias=(BIA0+(BIA1*(VRTemp-20))+(BIA2*(VRTemp-20)^2)+(BIA3*(VRTemp-20)^3)+...
(BIA4*(VRTemp-20)^4))*(SeattleG/GNOG); %Calculated Bias
Then I get an error for CalcBias:
Undefined function 'mtimes' for input arguments of type 'cell'.
Any suggestions or resolutions?
0 commentaires
Réponses (1)
Steven Lord
le 14 Juil 2020
Matrix multiplication isn't defined for a cell array. No arithmetic operators are. Unlike a double or single precision matrix, the elements in a cell array don't have to contain just numbers. They don't have to be scalars.
C = {'abcde', ones(2, 3, 4), magic(5); {'q'}, struct('abc', 'def'), []}
You can't multiply C by anything or anything by C.
A = C*[1 2; 3 4] % Throws an error
You can't multiply C(1, 3) by anything or anything by C(1, 3). C(1, 3) is itself a cell.
B = C(1, 3)*fliplr(eye(5)) % Throws an error
You can multiply C{1, 3} (which is a 5-by-5 matrix) by something with which it's compatible.
D = C{1,3}*fliplr(eye(5))
4 commentaires
Voir également
Catégories
En savoir plus sur Structures dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!