Not enough input arguments: how do i solve?

I am receiving the following error message:

EDU>> write2file
Error using write2file (line 8)
Not enough input arguments.

in this code:

function [] = write2file(maxLevel,avgMonths,minLevel,over_average)
fileNAME = 'ethanMcCamant.txt';
month= 1:12;
[fID,msg] = fopen(fileNAME, 'w');
if fID <0
    disp(msg)
else
    table = [month;maxLevel;avgMonths;minLevel;over_average];
    fprintf(fID,'%g  %.2f  %.2f  %.2 %g',table');
end
end

here is the rest of the code where I identify the variables and call in the function:

%Ethan McCamant
%Lab06.m
%10/16/12
%I worked on this assignment alone using the course material
%Program uses user defined functions to write in values from
%lake_powell.txt and then manipulates the values to provide different forms
%of output

clc, clear all

%***PROBLEM CONSTANTS***
MONTH = 12;
FIRSTYEAR = 1;
LASTYEAR = 8;

%***PROBLEM INPUTS***
%Part A
lake_powell = getWaterLevels();

%***PROBLEM OUTPUTS***

month= 1 : MONTH;
year = FIRSTYEAR : LASTYEAR;
maxLevel = zeros(FIRSTYEAR,MONTH);
avgMonths = zeros(FIRSTYEAR,MONTH);
minLevel = zeros(FIRSTYEAR,MONTH);
%Part B
%find the maximum level over the 8 year period for each month
for m = 1:MONTH
    maxLevel(m)= max(lake_powell(m)');
    %compute the average water level of each month over the 8 year period
    avgMonths(m)= mean(lake_powell(m,:));

      %find the minimum level over the 8 year period
      minLevel(m)= min(lake_powell(m,:));

      %compute the overall average
      overall_avg = mean(lake_powell(:));

      %Part C
      %find how many years of each month the water level was greater than the
      %overall average
      over_average(m)= length(find(lake_powell(m,:) > overall_avg));
  end

%Part D
write2file(maxLevel,avgMonths,minLevel,over_average);

%Part E
figure(1)
plot(month,maxLevel,'-gd',month,avgMonths,'--r^',month,minLevel,'-.b<','MarkerFaceColor','k');
title('Maximum Water Level, Average Water Level, and Minimum Water Level by Month');
xlabel('Month');
ylabel('Water Level(in feet)');
[a,b]=max(maxLevel);
textString = sprintf('The maximum water level is %.2f in month #%g',a,b);
text(2,max(maxLevel)+10,textString)
grid on
leg1 = legend('max level','avg months','min level');
set(leg1,'Location','EastOutside')

can anyone help? it will be very much appreciated

[Walter Roberson]

Which line of your write2file() function is line 8? The complaint is that some function you are calling inside write2file() does not have enough input arguments.

Answer 1

[Sachin Ganjare]

Probabably few arguments to your function Write2file(maxLevel,avgMonths,minLevel,over_average) are missing or not defined

Check the prototype of Write2file function.

Hope it helps!!

[Ethan McCamant]

how would i check the prototype of the function since it is user defined?