Question

How to estimate quantiles in treebagger

I am using Treebagger in MATLAB 2014a to apply Random Forest. Is there a way to find out all the ensemble predictions instead o...

6 days ago | 0 answers | 0

Question

readtable is not reading the time 12:00:00 AM?

I am using 'readtable' to read an excel file. The first column of the file contains date and time in 'mm/dd/yyyy HH:MM:SS PM' fo...

1 month ago | 1 answer | 0

Question

Error downloading URL. Your network connection may be down or your proxy settings improperly configured.

Hello, I am using the function urlwrite to downlaod a lot of html pages in a for loop. As an example, following is the url of on...

9 months ago | 0 answers | 0

Question

Border disappear when I use 'print' to save a plot

I am using the following code to create 4 subplots: labels={'reliability','resilience','vulnerability','watershed health'};...

11 months ago | 0 answers | 0

Question

normpdf and integral: non-scalalr arguments must match in size

I want to compute a numerical integration problem, the code for which is as follows mu=0; sig2_tmp=1; k=100; samps=nor...

1 year ago | 1 answer | 0

Question

How to solve floating point problem with datenum

I want to find missing dates from a cell-array of dates. I have attached the cell-array with the question. My solution to the pr...

1 year ago | 1 answer | 0

Question

Different values of datnumber for same date-time?

When I convert given date-number '2011-01-06 0:45' by datenum(2011-01-06 0:45,'yyyy-mm-dd HH:MM') I get 734509.031...

1 year ago | 1 answer | 0

Question

Global variables in parfor loop

I am using global variables in parfor loop and I get following m-lint The code uses a global variable in a parfor loop. Beca...

1 year ago | 1 answer | 0

Question

speed-up the given code

The following code is taking a most of the time in my script and I have to run the script many times Is there a way to reduce th...

2 years ago | 1 answer | 0

Question

plotyy: changing the line-style to 'o--'

I have three line-plots on left y-axis and a bar plot on the right y-axis. how do I change line-style to 'o--' for every line on...

2 years ago | 1 answer | 0

Question

datetime: Undefined function 'datetime' for input arguments of type 'double'

I am using following code to convert datenum to datetime x=723707; y=datetime(x,'ConvertFrom','datenum'); I get the e...

2 years ago | 1 answer | 0

Question

DERIVESTsuite: jacobian of a MATLAB defined function

I am using 'jacobianest' function of the MATLAB file exchange file 'DERIVEstsuite'. My function is defined only for positive val...

2 years ago | 0 answers | 0

Question

numerical differentiation with constraints on the parameter space

I want to compute the derivatives of a non-analytic function. I see there are packages available (for example, DERIVESTsuite) to...

2 years ago | 0 answers | 0

Question

copyfile: The system cannot find the path specified

I get the follwoing error when using copyfile The system cannot find the path specified. I am using the following code ...

2 years ago | 2 answers | 0

Question

plotyy: how to use 'datetick' on both axis

I used 'plotyy' to plot some data on left and right y-axis. Both the data have xaxis in date format. Therefore, at first, I plot...

2 years ago | 2 answers | 0

Question

sprintf: how to efficiently create a string of 75 numbers, separated by comma

I have an array which contains 75 numeric elements. I want to write these numbers as a string separated by a comma. If there wer...

2 years ago | 3 answers | 0

Question

Copyfile: No matching files were found

This is the example of a code I am writing: filename=strcat('p_',prcp_lat(i),'0','_',prcp_long(i),'0','.txt'); sou...

2 years ago | 1 answer | 0

Question

how to split a string at apostrophe using strsplit

I have a string '40°50'24', I want to separate the string at '°' and apostrophe between 50 and 24. Therefore, I am expe...

2 years ago | 1 answer | 0

Question

Reading a textfile without removing leading zeros

I want to read the attached text-file which contains two columns: text and numeric. I used the code: fileID=fopen('NWISM...

2 years ago | 1 answer | 0

Question

How to read particular dates from an HTML script?

I have downloaded HTML script of of few webpages; one is uploaded for reference. My task is to extract some information from the...

2 years ago | 1 answer | 0

Question

Downlaoding data from a webpage

I want to save the data shown on USGS webpage: <https://waterdata.usgs.gov/nwis/dv?cb_00060=on&format=rdb&site_no=03347000&r...

2 years ago | 1 answer | 0

Question

How to plot a surface-like plot when the data is not regularly spaced

I have 3-d data, where first two columns (x,y) are independent and the third column (z) is dependent upon first two. I want to h...

2 years ago | 1 answer | 0

Question

logpdf or pdf in mhsample

I am using 'mhsample' function for Metropolis-Hastings sampling from a posterior distribution. I am not sure if I should use pdf...

2 years ago | 1 answer | 0

Question

problem in using parralel computing toolbox

I want to speed up my computations using parfor. I am using the code written below, l=31:1:1000; % length-scale sig2=6.5:...

2 years ago | 1 answer | 0

Question

incosistent matrix multiplication and probelm with covarince matrix

I have a covariance matrix (S) which was computed using S=J*C*J'; where C is a diagonal matrix and J is another mat...

2 years ago | 3 answers | 1

Question

convolution of two probability density functions

I am considering two exponential probability distribution functions with mean equal to 5 and 3. pdf1=@(x)exppdf(x,5); pdf...

2 years ago | 1 answer | 0

Question

'too many input arguments' in mhsample

I am having the error 'too many input arguments' during my function call which itself is called by another built-in MatLab funct...

2 years ago | 1 answer | 0

Question

What algorithm does random(makedist) use

I have a pdf similar to the generalized normal distribution function, but it has an additional complication so that it includes ...

2 years ago | 0 answers | 1

Question

matrix is close to singular or badly scaled, what do you interpret by this error.

I am using MatLab solver 'fmincon' for an optimization problem. Everything seems to be working good except I got one error warni...

2 years ago | 0 answers | 0

Question

area under a pdf not 1?

I have convoluted two pdfs. Both of my pdfs are exponential with lambda=10 and 20, respectively. I have used the following code:...

2 years ago | 1 answer | 0