How to create a table in Matlab? - matlab

Question

Following is the graph that I used to calculate the PMV at points: A, B, C, D, E
%This is the code I used to calculate the PMV at points: A, B, C, D, E.
%Where:
%ta=tr=interior temperature setting (22°C, 23°C, 27°C) (variable);
%va=0,2 m/s (invariable);
%RH=50% (invariable);
%W=0 (invariable);
%Met= energy metabolism (1,2 met or 1,4 met) (variable);
%Iclo= static clothing insulation (0,5 clo or 1,0 clo) (variable).
ta=22.0;
tr=22.0;
va=0.2; %air speed
RH=50; %relative humidity
W=0;%mechanical work
Met=1.2;%energy metabolism in met (1 met=58.2 W/m2)
Iclo=0.5;%static clothing insulation
%preparation of variables
PHI=RH/100;%hygrometric dimensionless degree
Icl=Iclo*.155;%Conversion from clo to m2K/W
M=Met*58.15;%conversion of metabolism in unit of measurement of SI
Iclr=Icldyn_7730(va, Icl, M); %calculation of dynamic clothing insulation
vw=0.0052*(M-58);
vr=va+vw;
PMV_Fanger=PMV_evaluator( M,W,ta,tr,vr,PHI,Iclr );
Observation: the functions I called are the following: "Icldyn_7730"
function [ Icldyn ] = Icldyn_7730(va, Iclst, M)
%calculation of dynamic clothing insulation
%Input data
% va, air speed, m/s
% Iclst, static clothing insulation
% M, metabolism in W/m2
vw=0.0052*(M-58);
if vw>0.7
vw=0.7;
end
vr=va+vw;
%Static cloting insulation conversion m2K/W to clo
Iclo = Iclst/0.155;
%Clothing area factor
if Iclst <=0.078
fcl= 1.00 + 1.290 * Iclst;
else
fcl= 1.05 + 0.645 * Iclst;
end
%Static boundary layer thermal insulation in quiet air in m2K/W
Iast = 0.111;
%Total static insulation
Itotst= Iclst + Iast / fcl;
%Clothing insulation correction for wind (vr) and and walking (vw)
vraux= vr;
if vraux > 3.5
vraux=3.5;
end
if vraux < 0.15
vraux=0.15;
end
vwaux=vw;
if vwaux>0.7
vwaux=0.7;
end
CorIt=exp(-0.281*(vraux-0.15)+0.044*(vraux-0.15)^2-0.492*vwaux+0.176*vwaux^2);
if CorIt>1
CorIt=1;
end
CorIa=exp(-0.533*(vraux-0.15)+0.069*(vraux-0.15)^2-0.462*vwaux+0.201*vwaux^2);
if CorIa>1
CorIa=1;
end
Itr = Itotst * CorIt;
Iar = CorIa * Iast;
if Iclo<=0.6
Itr= ((0.6-Iclo) * Iar + Iclo * Itr) / 0.6;
end
Itdyn = Itr;
Iadyn = Iar;
Icldyn = Itdyn - Iadyn / fcl;
end
and "PMV_evaluator"
function [ PMV ] = PMV_evaluator( M,W,ta,tr,vr,PHI,Icl )
%Function for the calculation of the PMV index
% Input data
% M, metabolic rate in W/m2
% W, mechanical work in W/m2
% ta, air temperature in °C
% tr, mean radiant temperature in °C
% vr, rwlative air velocity in m/s
% PHI, hygrometric ratio dimensionless
% Icl in m2K/W (dynamic clothing insulation )
if (ta >=0)
ps = exp (16.6536-4030.183 / (235 + ta ));
else
ps = 0.6105* exp (21.875*ta / (265.5 + ta ));
end;
TAA = ta+273.0;
TRA = tr+273.0;
TCLA = TAA + (35.5-ta) / (3.5*Icl+0.1);
hcf = 12.1 * sqrt(vr);
%Clothing area factor
if Icl <=0.078
fcl= 1.00 + 1.290 * Icl;
else
fcl= 1.05 + 0.645 * Icl;
end
% Start of the loop for the evaluation of clothing surface temperature}
P1 = Icl * fcl;
P2 = P1 * 3.96;
P3 = P1 * 100;
P4 = P1 * TAA;
P5 = 308.7 - 0.028 * (M-W) + P2 * (TRA/100)^4;
XN = TCLA/100;
XF = XN;
EPS = 0.00015;
CONV = 100;
N=1;
while (CONV>EPS)
XF = (XF+XN)/2;
hcn = 2.38 * ((abs(100*XF - TAA))).^0.25;
if (hcf<=hcn)
hc = hcn;
else
hc = hcf;
end
XN = (P5+P4*hc-P2*XF^4)/(100+P3*hc);
CONV=abs(XF-XN);
end
tcl = 100*XN-273;
% End of the loop for the evaluation of clothing surface temperature}
%Skin diffusion heat loss
HL1=3.05*0.001*(5733-6.99*(M-W)-1000*PHI*ps);
%Sweat heat loss
if (M-W)>58.15
HL2= 0.42 * ((M-W)-58.15);
else
HL2=0;
end
%Respiration latent heat loss
HL3= 1.7*0.00001 * M * (5867-1000*PHI*ps);
%Respiration dry heat loss
HL4= 0.0014 * M * (34-ta);
%Radiative heat loss
HL5= 3.96 * fcl * ((0.01*tcl+2.73)^4-(0.01*tr+2.73)^4);
%Convective heat loss
HL6= fcl * hc * (tcl-ta);
%Thermal sensation transformation coefficient}
TS= 0.303 * exp(-0.036*M) + 0.028;
PMV= TS * (M-W-HL1-HL2-HL3-HL4-HL5-HL6);
end
How can I create a table like the following with MATLAB?
The data in the table are the values of PMV. They have been obtained from the individual calculations of MATLAB.

Answer 1

Consider using the table variable introduced in the later versions of matlab, this variable allows for disparate data sources. The full matlab help has an example where the a set of categorical row names occupies the first column while a set of headers occupies the top.
The writetable commmand in matlab will also write a table variable (rows/columns/headers etc) to an excel spreadsheet.

Answer 2

Verbosing zhqiat's answer, your table could be generated by the following code:
data = [-1.5924 -0.2152 -1.1426 0.0421; -1.5924 -0.2152 -1.1426 0.0421; -1.2319 0.0313 -0.8241 0.2595; 0.2329 1.0332 0.4686 1.1427; 0.2329 1.0332 0.4686 1.1427];
row_names = {'A', 'B', 'C', 'D', 'E'};
var_names = {'met1d2_clo0d5', 'met1d2_clo1d0', 'met1d4_clo0d5', 'met1d4_clo1d0'};
var_description = {'M = 1.2 met - 0.5 clo', 'M = 1.2 met - 1. clo', 'M = 1.4 met - 0.5 clo', 'M = 1.4 met - 1.0 clo' };
testtable = array2table(data, 'VariableNames', var_names, 'RowNames', row_names);
testtable.Properties.VariableDescriptions = var_description;
This would result in something like this:
Screenshot of Matlab-Table
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