Error in lplot (line 3) Figure = plot(shifts,data);

Using this script:

cd('/Users/Ewan/Desktop/MATLAB/Extracted data')

load('PC3_D55')

load('PNT2_D55')

quality control (run for each data set)

close all

lplot(shift, PC3_D55); title('PC3');

[shift_cut, PC3_D55] = AJ_QT_cutrange(shift, PC3_D55);

quality control (run for each data set)

close all

lplot(shift, PNT2_D55); title('PNT2');

[shift_cut, PNT2_D55] = AJ_QT_cutrange(shift, PNT2_D55);

scale to 2935 peak

a=scale2935(PC3_D55);

b=scale2935(PNT2_D55);

plot to compare data sets mean for each individual data set

Black = caz_rgb_chart('Black');

Magenta = caz_rgb_chart('Magenta');

Lime = caz_rgb_chart('Lime');

Red = caz_rgb_chart('Red');

Blue = caz_rgb_chart('Blue');

Purple = caz_rgb_chart('Purple');

figure;

h1= plot(shift_cut, mean(a), 'Color', [Red]);

set(h1, 'LineWidth',2);

hold on

h2 = plot(shift_cut, mean(b), 'Color', [Blue]);

set(h2, 'LineWidth',2);

hold off

legend('PC3 3','PNT2 3');

set(legend,'Color','none');

axis('tight')

set(gca,'box','off')

set(gcf,'Color',[1 1 1])

xlabel('Raman Shift/cm^-^1','FontWeight','bold','FontSize',16,'FontName','Arial')

ylabel('Counts', 'FontWeight','bold','FontSize',16,'FontName','Arial')

set(gca,'FontWeight','bold','FontSize',16,'FontName','Arial');

group all data sets from same conditions together

DMSO_all=[a];

TOFA_all=[b];

plot to compare data sets mean by condition

Black = caz_rgb_chart('Black');

Magenta = caz_rgb_chart('Magenta');

Lime = caz_rgb_chart('Lime');

Red = caz_rgb_chart('Red');

Blue = caz_rgb_chart('Blue');

Purple = caz_rgb_chart('Purple');

figure;

h1= plot(shift_cut, mean(DMSO_all), 'Color', [Red]);

set(h1, 'LineWidth',1);

hold on

h2 = plot(shift_cut, mean(TOFA_all), 'Color', [Blue]);

set(h2, 'LineWidth',1);

hold off

legend('PC3','PNT2');

set(legend,'Color','none');

axis('tight')

set(gca,'box','off')

set(gcf,'Color',[1 1 1])

xlabel('Raman Shift/cm^-^1','FontWeight','bold','FontSize',16,'FontName','Arial')

ylabel('A.U.', 'FontWeight','bold','FontSize',16,'FontName','Arial')

set(gca,'FontWeight','bold','FontSize',16,'FontName','Arial');

ratio1 = 2850/2935

[ratio1_DMSO]=extract_ratio_2850_2935_AJ(DMSO_all);

[ratio1_TOFA]=extract_ratio_2850_2935_AJ(TOFA_all);

ratio2 = 2880/2935

[ratio2_DMSO]=extract_ratio_2880_2935_AJ(DMSO_all);

[ratio2_TOFA]=extract_ratio_2880_2935_AJ(TOFA_all);

I keep getting the ERROR:

Error using plot

Vectors must be the same length

Error in lplot (line 3)

Figure = plot(shifts,data);

Funny thing is that it works for some .mat files I run and often I get this error.

I cant work out why...please help?

[Star Strider]

The results of these assignments must be the same in at least one of 2 dimensions (only 2 are permitted, they must be the same to plot matrices against one another, or one may be a vector) for the plot call to work:

shiftsize = size(shifts)
datasize = size(data)

What are they just before the plot call that throws the error?

[Ewan Hislop]

They?

[Jan]

"They" means:

shiftsize = size(shifts)
datasize = size(data)

[Ewan Hislop]

Im not sure what is being asked sorry

[Steven Lord]

Set an error breakpoint to pause when MATLAB throws an error.

Run your code.

When MATLAB pauses due to that error, look at the size of the shifts and data variables. They won't be the same length.

You will need to determine, by examining the data in your program, why the variables aren't the same length. At the very least you'll probably be able to tell (assuming you're looping over a list of file names) which file has the data of unexpected length.

Since lplot doesn't appear to be a function in a MathWorks product, you may want to either contact the author of that function or post a link where people on Answers can see what it does (don't post the function itself without the author's permission) and we may be able to see if it does something unusual that would cause this error.