Posts by Igoto • 163 points
8 posts
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answer940
viewsQ: Represent coordinates in Matlab vector
I am having problems creating an object vector in Matlab, the idea is that it is a coordinate vector, i.e. the x and y positions. The goal is to have a vector to access the coordinates in the loops…
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answer625
viewsQ: Center a Plot on top of an image in Matlab
I’m crowding over an image, however with the code below the Plot happens at the beginning of the image at 0.0. I would like it to be done from the centre of the image in question. Excerpt from the…
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answer434
viewsQ: Mount an RGB matrix that is equivalent to a Grayscale with an altered color
I have a matrix in Matlab of one dimension or Grayscale, but I would like to create an equivalent in RGB in which all this black, i.e. all zero is a shade of green. And that all other colors white…
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answers2139
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answer625
viewsA: Problems filtering field with LIKE in Mysql
I managed to solve the problem that way: select instituicao, count(*) from base_wos WHERE instituicao LIKE '%Sigla%' GROUP BY instituicao limit 1250000; The problem was the syntax of PHP being used…
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answer625
viewsQ: Problems filtering field with LIKE in Mysql
I have a table that has more than 1 million data that I want to filter through an acronym that can be anywhere in the String field. It has BTREE index in Mysql. I’m doing it this way: select…
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answers6430
viewsQ: Increase number of rows returned by select group in Mysql
I have a table with 1 million lines that I need to do a report that groups the repeated names. I am doing so SELECT instituicao, count(*) from base_wos GROUP BY instituicao;. However always the…
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answer432
viewsQ: How to recognize Mysql instances using Java and allow the user to choose the database?
I am developing a project that is requested that it is possible to access different benches of MySQL which are allocated on machines and also on servers. In a way that allows the selection of a…