Poulomi Ganguli

Last seen: 3 months ago | Active since 2018

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geoshow of struct array
Hello I wish to plot the attached struct array, which is clipped from a shapefile using mapping tools available in MATLAB. Also...

3 months ago | 1 answer | 0

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Linking line plot and map (geoshow) together MATLAB
Hello all: I wish to combine the MATLAB spatial plot generated through mapping function and the line plot on the same axis scal...

6 months ago | 1 answer | 0

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How to estimate 95% probability contour in bivariate kernel density function MATLAB
Hello: I have fitted bivariate kernel density function using ksdensity in MATLAB and obtained contour as the method described h...

1 year ago | 1 answer | 0

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Identify Duplicate values in an array and replace with Nan
Hello: I have a array as below of dimension 40,000x3. Third columns often contain duplicate values. I need to identify duplicate...

1 year ago | 2 answers | 0

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Plot a line parallel to map axis
Hello: I wish to plot a straight line parallel to the tropics, i.e., [0,0] to [-180, 180] over the world map defined over map a...

1 year ago | 1 answer | 0

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Orient pie chart in clock wise direction
Hello: In generally, pie chart shows anti-clock wise orientation with its shades. How to orient it to clock wise direction?

1 year ago | 1 answer | 0

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MATLAB urlread cannot determine file status if they exist
Hello: I am using urlread function to check if particular file exists in a web-page. I have used the following command: [~, St...

1 year ago | 0 answers | 0

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Identify data points at a shortest distance from the coast
Hello: I want to identify the city locations that are located within 100 km distance from the coast line. I have tried the foll...

1 year ago | 1 answer | 0

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Put NaN values to incomplete records
Hello: I have 3-hourly records for a daily time series records with lot of missing values for 30-yrs. Since 3-hourly records ha...

2 years ago | 0 answers | 0

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How to ignore points outside polygon shapefiles MATLAB mapping toolbox
Hello: I have polygon shape file, where the shape file comprises of multiple polygon each in a struct format. I want to superim...

3 years ago | 1 answer | 0

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Problems in reading large matrix with unintended gaps between data
Hello: I guess I have attached the output file instead of the actual one. I revised my submission here. The problem is with the...

3 years ago | 1 answer | 0

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Problems in reading large matrix with large empty cells
Hello: I am facing problem in reading a large matrix with header file containing values and missing data/empty cells in each co...

3 years ago | 1 answer | 0

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Question

heat map of high dimensional data
Hello: I have a matrix of data of huge dimension, 100x64. I wish to plot heatmap; could anyone suggests nice way to plot heatma...

4 years ago | 1 answer | 0

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why my kernel density function never touches x axes?
Hello: I want plot kernel density function with the attached test data. I have used foll. code: Xgrid1 = linspace(min(X),max(X...

4 years ago | 1 answer | 0

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Question

How to Crop India shape file from Global shapefile
Hello: I have two shapefiles: global shapefiles of landuse map and India administrative boundary shapefile. Is it possible to c...

4 years ago | 1 answer | 0

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Question

How to remove common row elements from matrix
Hello: I have large number of arrays with mix of NaNs & numbers, for example: NaN NaN NaN NaN NaN NaN 1973 1 15...

4 years ago | 1 answer | 0

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Question

How to compute centered moving average from an NxM array
Hello: I have an 40x2 matrix, in which the first column shows day index and the 2nd column value for each day: 1 11 2 12 3 1...

4 years ago | 2 answers | 0

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answers

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Identifying missing gaps in daily timeseries
Hello: I have a daily timeseries data for 10 stations which are in foll. format: year month day value 1970 1 1 12...

4 years ago | 1 answer | 0

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Question

Can't find fmincon optimizer in R2019b
Hello: I have recently installed MATLAB R2019b licensed version in my computer. While on checking ver- option I can find optimi...

5 years ago | 1 answer | 0

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Question

grouping array based on similar row element
Hello, I have a matrix A: 123 1970 1 1 12 123 1971 1 1 120 123 1972 1 12 300 240 1970 1 10 40 240 1971 2 1 45 240 1972 3...

5 years ago | 1 answer | 0

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How to fix marker size in scatterm in mapping toolbox
Hello: I want to show circles on the map using scatterm function. In that I want to fix size of each circles proportional to th...

5 years ago | 1 answer | 0

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Question

Grouping similar element based on common columns
Hello: I have two matrices, which I wish to group together based on common first three column elements. If no common column ele...

5 years ago | 1 answer | 0

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How to implement MonteCarlo integration of probability density function to obtain CDF
Hello: I have a probability density function obtained from convolution process of two random variables. Hence, I don't have the...

5 years ago | 1 answer | 0

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Answered
Generating random data from Kernel density estimator
This is simple. First, estimate kernel density parameters from data vector, using fitdist: pd = fitdist(X,'kernel'); Use this ...

5 years ago | 4

Question

Convolution of two probability density function
Hello: I am interested to add two independent random variables, X1 and X2, described by kernel density functions. Is there any ...

5 years ago | 1 answer | 0

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Question

PDF of paretotail distribution
Hello: I have fitted piecewise paretotail distribution where central distribution is kernel and tails are fitted with pareto di...

5 years ago | 1 answer | 0

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Question

Convolution of CDF and a PDF using Kernel density estimator
Dear All: I am interested to add CDF described by Generalized Extreme Value and a PDF described by Kernel density estimator usi...

5 years ago | 0 answers | 0

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Question

combining different size arrays based on time dimension and compute average for the last column
Hello: I have two disimilar sized arrays, M1 (37988x5) and M2 (37376x5). The first four column shows year,month,day and hour an...

5 years ago | 1 answer | 0

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Question

Infil NaN for missing years in time series
Hello: I have two matrices, A and B. Matrix B has some years missing in it. I want to concatenate horizontally two matrices, A ...

5 years ago | 1 answer | 0

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Question

Finding exact rank of a matrix element
Hello: I have two matrices A and B. I am attaching some parts of original matrices. My question is: how to find elements of mat...

5 years ago | 1 answer | 0

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Poulomi Ganguli

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