Community Profile # ELISABETTA BILLOTTA

Last seen: 5 Tage vor Aktiv seit 2021

PhD Student

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Frage

calculate the maximum at each point of the grid
i have such a script where PP_all is a 100651x1 array and it derives from this formula PP_all=1-((1-P_1_4).*(1-P_1_6).*(1-P_1_9...

9 Tage vor | 1 Antwort | 0

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Frage

how to calculate the maximum of a probability array
i have such a script where PP_all is a 100651x1 matrix and it derives from this formula PP_all=1-((1-P_1_4).*(1-P_1_6).*(1-P_1_...

11 Tage vor | 1 Antwort | 0

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Frage

how to find the value of an index in a for loop
lonP = 14.3; latP = 40.4; limlon=[min(longrd),max(longrd)]; limlat=[min(latgrd),max(latgrd)]; ic=0; for i=1:length(longrd)...

16 Tage vor | 1 Antwort | 0

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Frage

formulas and + or - a percentage
I have a variable V0 (1x6313 double) (i attached) -I must first calculate Vij where the minor extreme is Vi=V0-10% and the majo...

20 Tage vor | 1 Antwort | 0

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Frage

product between doubles 200*200
I have a series of 200x200 doubles (they are probability values live prob1=200x200). I have to do the multiplication between t...

28 Tage vor | 2 Antworten | 0

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Frage

randomly sample a pair of values in a double
I have two doubles of the type coord_iso=65x2 double and coord_ce=65x2 double (they are all pairs of geographic coordinates). I...

3 Monate vor | 2 Antworten | 0

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Frage

I have an image (a DEM.tif) inserted in the above script where I plotted a map created with contourf. the code is: [AA,EE]=geot...

4 Monate vor | 2 Antworten | 0

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Frage

how to recreate excel table in matlab
I have a problem. I have attached an excel file to make you understand what I have to do: I have to get in matlab a table/stru...

4 Monate vor | 1 Antwort | 0

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Frage

calculate distances starting from file.mat double
Hello everybody. I have a problem. I have a .mat file of this type (hatepe_dec.mat is an example) with 4 other .mat files (dou...

5 Monate vor | 1 Antwort | 0

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Frage

how to write values with dms2degrees
what i have to do is insert an excel table where the coordinates are in degrees, minutes and seconds and convert it to decimal d...

5 Monate vor | 1 Antwort | 0

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Frage

how to extend a straight line through two points to the y-axis of the plane
I have a graph of this type and I have created the straight line dashed in red that passes through the point of coordinates 0-0 ...

5 Monate vor | 0 Antworten | 0

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Frage

how to extend a straight line passing through two points until it meets the y axis of the Cartesian plane
I have a graph of this type and I have created the straight line dashed in red that passes through the point of coordinates 0-...

5 Monate vor | 2 Antworten | 0

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Frage

Operator '>' is not supported for operands of type 'struct'
i have two struct xin_s and yin_s and i need a1 and a2. i wrote: lonsorgente = 14.2; latsorgente = 40.8; a1= xin_s > lonsorge...

8 Monate vor | 2 Antworten | 0

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Frage

how to create a STRUCTURE composed of variables from .NC files
I have a very heavy set of .NC files (ERA 5 from Copernicus) to use within other scripts. They are the data relating to the char...

9 Monate vor | 1 Antwort | 0

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Frage

to build a table with XYZ values
I have to build a table in csv format (to be used later in qgis) with 3 values of which XX = longitudes , YY = are latitudes and...

9 Monate vor | 3 Antworten | 0

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Frage

how to transform files drom double to struct
i need to estrapolate data from matlab and use them in Qgis. I need shapefile data and with shapewrite it doesn't work. cont...

9 Monate vor | 1 Antwort | 0

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Frage

how to transform files into shapefile for qgis
I need to extrapolate some values to then be able to plot them on QGIS over a DEM. I wrote with che command shapewrite: conto...

9 Monate vor | 0 Antworten | 0

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Frage

convert matlab results into a format useful for Qgis
I have a series of matrices which are the result of various operations and I have a graph produced with the contourf function wh...

9 Monate vor | 0 Antworten | 0

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Frage

how to remove values below 0.1?
after doing a series of calculations I obtained a prob(i)=1x27331 double matrix characterized by values ranging from 0 to about ...

9 Monate vor | 2 Antworten | 0

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Frage

how to view data on a DEM-readhgt
Through the READHGT function I was able to download the DEM data of an area of interest. above this DEM I have to load the maps ...

10 Monate vor | 0 Antworten | 0

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Frage

how to find intersection point in arrays with for cycle?
I built such a grid: longrd=0:0.1:40; latgrd=25:0.1:65; limlon=[min(longrd),max(longrd)]; limlat=[min(latg...

12 Monate vor | 1 Antwort | 0

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Frage

extrapolate values from matrices and graphs
I have a chart of this type which derives from this script: for i=1:length(longrd) for j=1:length(latgrd) XX(i,...

12 Monate vor | 1 Antwort | 0

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Frage

how to display ranges of numbers
I have a script like: alpha_x = sqrt (x1-x2) / 6; beta_x = log (x2 + x1) / 7; epsilon_x = mean (alpha, beta); how do i vie...

etwa ein Jahr vor | 1 Antwort | 0

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Frage

calculate the minimum probability
I have in one case two matrices and in the other case three matrices of size 2922x1. the values within the matrices are probabil...

etwa ein Jahr vor | 2 Antworten | 0

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Frage

plot in logarithmic scale
can someone tell me how in a 3d graph I can plot linearly the X and Y axis, while the Z axis (ZZ in this case) to plot it in log...

etwa ein Jahr vor | 2 Antworten | 0

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Frage

smoothing of a 2d distribution
Hello, what I would like to do is try to smooth and make this map more homogeneous and in particular the probability values,...

etwa ein Jahr vor | 1 Antwort | 0

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does anyone know a command that allows me to plot the world map but with the coordinates in radians and not with degrees ??? t...

mehr als ein Jahr vor | 0 Antworten | 0

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Frage

how to smooth the corners of a map
I have a map of this type generated with the command "contourf(XX,YY,ZZ);" where XX is the longitude value, YY is the latitud...

mehr als ein Jahr vor | 1 Antwort | 0

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Frage

to solve the problem: Index in position 1 exceeds array bounds. Index must not exceed 10
i have this code: x = [0 0 71 355 676]; v = [0 7 30 70]; xq = z1; ...

mehr als ein Jahr vor | 1 Antwort | 0

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Frage

summations and selections of the columns of a matrix
I have a matrix of this type 10 15 37 16 6 4 3 5 15 66 85 96 17 89 15 82 58 66 78 100 I have to ...

mehr als ein Jahr vor | 1 Antwort | 0

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