Concatenation in gtext for plots

Greetings,

I am having trouble concatenating text for plots/graphs using the gtext command. I can get the plot to do exactly what I want without the concatenation but once I try it, I get the following error:

Error using gtext (line 35)
Property value pairs expected.
 

Here is the code that I am using:

chart1=[ptfdgp1; ptfdpt25; ptfdpt5; ptfdpt75; prdlt1in];

% temporary variables for the chart
yt1=num2str(ptfdgp1);
yt2=num2str(ptfdpt25);
yt3=num2str(ptfdpt5);
yt4=num2str(ptfdpt75);
ty5=num2str(prdlt1in);

% Bar chart that shows forecast precipitation error
barh(chart1)
yticklabels({'<0.01 in','<0.25 in',' <0.50 in','<0.75 in', '<1 in,'});
xlabel('The Precent rainfall accuracy');
ylabel('Rainfall Error Category');
title('Rainfall Accuracy');
gtext([yt1], '%','fontweight',' bold', 'color','w');
gtext([yt2], '%','fontweight','bold', 'color','w');
gtext([yt3], '%','fontweight','bold','color','w');
gtext([yt4], '%','fontweight','bold','color','w');
gtext([yt5], '%','fontweight','bold','color','w');
print('-dpdf','FcstPrecipAcc')

My end goal is to get the main text to be dynamic and not require me to check the output before putting the value into gtext to finsh the graph.

Thoughts?